Problem Name | Online Judge | Year | Contest | Difficulty Level | |
---|---|---|---|---|---|

1 | ACM (ACronymMaker) | SPOJ | 1 | ||

2 | Alphacode | SPOJ | 1 | ||

3 | Assignments | SPOJ | 1 | ||

4 | Tower of Babylon | SPOJ | 1 | ||

5 | Philosophers Stone | SPOJ | 1 | ||

6 | Bytelandian gold coins | SPOJ | 1 | ||

7 | Summing to a Square Prime | SPOJ | 1 | ||

8 | Tiling a Grid With Dominoes | SPOJ | 1 | ||

9 | BLAST | SPOJ | 1 | ||

10 | Coins Game | SPOJ | 1 | ||

11 | Rectangles Perimeter | SPOJ | 1 | ||

12 | Party Schedule | SPOJ | 1 | ||

13 | Permutations | SPOJ | 1 | ||

14 | Piggy-Bank | SPOJ | 1 | ||

15 | Rent your airplane and make money | SPOJ | 1 | ||

16 | Roads | SPOJ | 1 | ||

17 | Candy | SPOJ | 1 | ||

18 | DNA Sequences | SPOJ | 1 | ||

19 | Feynman | SPOJ | 1 | ||

20 | Scuba diver | SPOJ | 1 | ||

21 | Help the soldier | SPOJ | 1 | ||

22 | Sums in a Triangle | SPOJ | 1 | ||

23 | Trip | SPOJ | 1 | ||

24 | Treats for the Cows | SPOJ | 1 | ||

25 | Two Ends | SPOJ | 1 | ||

26 | Is Bigger Smarter? | UVA | 1 | ||

27 | Unidirectional TSP | UVA | 1 | ||

28 | Vertex Cover | SPOJ | 1 | ||

29 | Aibohphobia | SPOJ | 1 | ||

30 | Black or White | SPOJ | 1 | ||

31 | Fool the Police | SPOJ | 1 | ||

32 | Palindrome 2000 | SPOJ | 1 | ||

33 | Chop Ahoy! Revisited! | SPOJ | 1 | ||

34 | Seinfeld | SPOJ | 1 | ||

35 | Cross-country | SPOJ | 1 | ||

36 | In Danger | SPOJ | 1 | ||

37 | Distinct Subsequences | SPOJ | 1 | ||

38 | Edit distance | SPOJ | 1 | ||

39 | Fishmonger | SPOJ | 1 | ||

40 | Adjacent Bit Counts | SPOJ | 1 | ||

41 | The Double HeLiX | SPOJ | 1 | ||

42 | Pocket Money | SPOJ | 1 | ||

43 | LATGACH3 | SPOJ | 1 | ||

44 | Mixtures | SPOJ | 1 | ||

45 | No Change | SPOJ | 1 | ||

46 | Square Brackets | SPOJ | 1 | ||

47 | Dollars | UVA | 1 | ||

48 | Let Me Count The Ways | UVA | 1 | ||

49 | Cutting Sticks | UVA | 1 | ||

50 | Dividing coins | UVA | 1 | ||

51 | Ingenuous Cubrency | UVA | 1 | ||

52 | Chocolate | SPOJ | 1 | ||

53 | Bee Walk | SPOJ | 1 | ||

54 | Sweet and Sour Rock | SPOJ | 1 | ||

55 | Activities | SPOJ | 1 | ||

56 | Martian Mining | SPOJ | 1 | ||

57 | Phidias | SPOJ | 1 | ||

58 | Sum of Digits | SPOJ | 1 | ||

59 | Pilots | SPOJ | 1 | ||

60 | Tri graphs | SPOJ | 1 | ||

61 | Cut Ribbon | Codeforces | Codeforces Round #119 (Div. 2) | 1 | |

62 | Tetrahedron | Codeforces | Codeforces Round #113 (Div. 2) | 1 | |

63 | A+B Problem | PKU | 1 | ||

64 | Exponentiation | PKU | 1 | ||

65 | Hangover | PKU | 1 | ||

66 | THE DRUNK JAILER | PKU | 1 | ||

67 | Homer Simpson | UVA | 1 | ||

68 | SuperSale | UVA | 1 | ||

69 | Luggage | UVA | 1 | ||

70 | Wedding shopping | UVA | 1 | ||

71 | Maximum Sum | UVA | 1 | ||

72 | How do you add? | UVA | 1 | ||

73 | Training for final | SPOJ | 1 | ||

74 | Easy Longest Increasing Subsequence | SPOJ | 1 | ||

75 | K-based Numbers | Timus | 1 | ||

76 | K-based Numbers. Version 2 | Timus | 1 | ||

77 | Staircases | Timus | 1 | ||

78 | Binary Apple Tree | Timus | 1 | ||

79 | Lucky Tickets | Timus | 1 | ||

80 | Square Country | Timus | 1 | ||

81 | Binary Lexicographic Sequence | Timus | 1 | ||

82 | Metro | Timus | 1 | ||

83 | Maximum Sum | Timus | 1 | ||

84 | Scientific Conference | Timus | 1 | ||

85 | Flags | Timus | 1 | ||

86 | Milliard Vasya's Function | Timus | 1 | ||

87 | Collecting Beepers | UVA | 1 | ||

88 | Getting in Line | UVA | 1 | ||

89 | Army | Codeforces | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) | 1 | |

90 | The Tower of Babylon | UVA | 1 | ||

91 | Magic Grid | SPOJ | 1 | ||

92 | Building Bridges | SPOJ | 1 | ||

93 | Largest Submatrix | UVA | 1 | ||

94 | Take the Land | UVA | 1 | ||

95 | Non-Decreasing Digits | SPOJ | 1 | ||

96 | Blueberries | SPOJ | 1 | ||

97 | DIE HARD | SPOJ | 1 | ||

98 | Save Thy Toys | SPOJ | 1 | ||

99 | 0110SS | SPOJ | 1 | ||

100 | Tile Code | Live Archive | 2007 | Asia - Seoul | 1 |

101 | Tiling Up Blocks | Live Archive | 2003 | Asia - Kaohsiung | 1 |

102 | Candy | Live Archive | 2008 | Latin America - South America | 1 |

103 | Fibonacci Words | Live Archive | 2012 | World Finals - Warsaw | 1 |

104 | Hotels Along the Croatian Coast | SPOJ | 1 | ||

105 | Fibonacci Freeze | UVA | 1 | ||

106 | COSTLY CHESS | SPOJ | 1 | ||

107 | Soft Drinking | Codeforces | Codeforces Round #107 (Div. 2) | 1 | |

108 | The 3n + 1 problem | UVA | 1 | ||

109 | Longest Common Subsequence | UVA | 1 | ||

110 | MAXIMUM WOOD CUTTER | SPOJ | 1 | ||

111 | Divisibility | UVA | 1 | ||

112 | Pearls | Live Archive | 2002 | Europe - Northwestern | 1 |

113 | Prime Permutations | CodeChef | 1 | ||

114 | Enormous Input Test | CodeChef | 1 | ||

115 | Boredom | Codeforces | Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) | 1 | |

116 | Aliens at the train | SPOJ | 1 | ||

117 | T-primes | Codeforces | Codeforces Round #142 (Div. 2) | 1 | |

118 | Ultra-Fast Mathematician | Codeforces | Codeforces Beta Round #57 (Div. 2) | 1 | |

119 | Making Change | TJU | 1 | ||

120 | Before an Exam | Codeforces | Codeforces Beta Round #4 (Div. 2 Only) | 1 | |

121 | The Bale Tower | TJU | 1 | ||

122 | Robot Instructions | UVA | 1 | ||

123 | Longest Palindrome | UVA | 1 | ||

124 | Optimal Array Multiplication Sequence | UVA | 1 | ||

125 | Longest Run on a Snowboard | UVA | 1 | ||

126 | Coin Change | UVA | 1 | ||

127 | Divisible Group Sums | UVA | 1 | ||

128 | Strategic Defense Initiative | UVA | 1 | ||

129 | Vacation | UVA | 1 | ||

130 | Testing the CATCHER | UVA | 1 | ||

131 | History Grading | UVA | 1 | ||

132 | Stacking Boxes | UVA | 1 | ||

133 | The Twin Towers | UVA | 1 | ||

134 | Compromise | UVA | 1 | ||

135 | 23 out of 5 | UVA | 1 | ||

136 | Grandpa's Walk | Live Archive | 2012 | Asia - Jakarta | 1 |

137 | Generations of Tribbles | Live Archive | 2013 | North America - Pacific Northwest | 1 |

138 | Equal Sum Sets | Live Archive | 2013 | Asia - Aizu | 1 |

139 | Cheap Travel | Codeforces | Codeforces Round #266 (Div. 2) | 1 | |

140 | k-Tree | Codeforces | Codeforces Round #247 (Div. 2) | 1 | |

141 | Flowers | Codeforces | Codeforces Round #271 (Div. 2) | 1 | |

142 | To the Max | PKU | 1 | ||

143 | Membership Management | Live Archive | 2010 | Asia - Tokyo | 1 |

144 | The Great Ball | SPOJ | 1 | ||

145 | XOR Maximization | SPOJ | 1 | ||

146 | Given Length and Sum of Digits... | Codeforces | Codeforces Round #277.5 (Div. 2) | 1 | |

147 | The Knapsack Problem | SPOJ | 1 | ||

148 | Wachovia Bank | SPOJ | 1 | ||

149 | Trip Planning | Live Archive | 2008 | Asia - Taipei | 1 |

150 | Forming Quiz Teams | UVA | 1 | ||

151 | Woodcutters | Codeforces | Codeforces Round #303 (Div. 2) | 1 | |

152 | Number of Ways | Codeforces | Codeforces Round #266 (Div. 2) | 1 | |

153 | Histogram | SPOJ | 1 | ||

154 | Two Substrings | Codeforces | Codeforces Round #306 (Div. 2) | 1 | |

155 | Quasi Binary | Codeforces | Codeforces Round #300 | 1 | |

156 | Dreamoon and WiFi | Codeforces | Codeforces Round #272 (Div. 2) | 1 | |

157 | Fence | Codeforces | Codeforces Round #211 (Div. 2) | 1 | |

158 | Bridging signals | Live Archive | 2003 | Europe - Northwestern | 1 |

159 | ABC Path | SPOJ | 1 | ||

160 | ShorterSuperSum | TopCoder | SRM 467 - Div2 easy] (14151) | 1 | |

161 | Omar | A2 Online Judge | 1 | ||

162 | Chat room | Codeforces | Codeforces Beta Round #54 (Div. 2) | 1 | |

163 | Perfection | UVA | 1 | ||

164 | Joysticks | Codeforces | Codeforces Round #345 (Div. 2) | 1 | |

165 | Kefa and First Steps | Codeforces | Codeforces Round #321 (Div. 2) | 1 | |

166 | Divisibility by Eight | Codeforces | Codeforces Round #306 (Div. 2) | 1 | |

167 | BerSU Ball | Codeforces | Codeforces Round #277.5 (Div. 2) | 1 | |

168 | Kuriyama Mirai's Stones | Codeforces | Codeforces Round #248 (Div. 2) | 1 | |

169 | Mashmokh and ACM | Codeforces | Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) | 1 | |

170 | Sereja and Suffixes | Codeforces | Codeforces Round #215 (Div. 2) | 1 | |

171 | Puzzles | Codeforces | Codeforces Round #196 (Div. 2) | 1 | |

172 | Flipping Game | Codeforces | Codeforces Round #191 (Div. 2) | 1 | |

173 | Ilya and Queries | Codeforces | Codeforces Round #186 (Div. 2) | 1 | |

174 | Binary Search Tree | Live Archive | 2010 | Asia - Daejeon | 1 |

175 | Drazil and Factorial | Codeforces | Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) | 1 | |

176 | Cleaning Robot | SPOJ | 1 | ||

177 | Can you answer these queries I | SPOJ | 1 | ||

178 | Twin Primes | UVA | 1 | ||

179 | Alphacode | Live Archive | 2004 | North America - East Central NA | 1 |

180 | Positive or Negative | A2 Online Judge | 1 | ||

181 | Prime Digital Roots | Live Archive | 2001 | South Pacific | 1 |

182 | Sums in a Triangle | CodeChef | 1 | ||

183 | The jackpot | UVA | 1 | ||

184 | New Year and Hurry | Codeforces | Good Bye 2016 | 1 | |

185 | Cormen --- The Best Friend Of a Man | Codeforces | Codeforces Round #377 (Div. 2) | 1 | |

186 | Jill Rides Again | UVA | 1 | ||

187 | Watermelon | Codeforces | Codeforces Beta Round #4 (Div. 2 Only) | 1 | |

188 | QAQ | Codeforces | Codeforces Round #447 (Div. 2) | 1 | |

189 | Simple Math | A2 Online Judge | 1 | ||

190 | Anton and Danik | Codeforces | Codeforces Round #379 (Div. 2) | 1 | |

191 | DZY Loves Chessboard | Codeforces | Codeforces Round #254 (Div. 2) | 1 | |

192 | Princess Farida | SPOJ | 1 | ||

193 | Longest Common Substring | SPOJ | 1 | ||

194 | Buying Apples! | SPOJ | 1 | ||

195 | Trees | Live Archive | 2004 | South Pacific | 1 |

196 | Tiling a Grid With Dominoes | Live Archive | 2007 | North America - Greater NY | 1 |

197 | Bicoloring | UVA | 1 | ||

198 | I Can Guess the Data Structure! | UVA | 1 | ||

199 | Prime Path | Live Archive | 2006 | Europe - Northwestern | 1 |

200 | Party | Codeforces | Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) | 1 | |

201 | Exploring Pyramids | Live Archive | 2005 | Europe - Northeastern | 1 |

202 | Largest Rectangle in a Histogram | SPOJ | 1 | ||

203 | Mice and Maze | Live Archive | 2001 | Europe - Southwestern | 1 |

204 | Petya and Strings | Codeforces | Codeforces Beta Round #85 (Div. 2 Only) | 1 | |

205 | What Goes Up | UVA | 1 | ||

206 | Permutation Arrays | UVA | 1 | ||

207 | I-Keyboard | SPOJ | 2 | ||

208 | Card Sorting | SPOJ | 2 | ||

209 | Point Connection Game in a Circle | SPOJ | 2 | ||

210 | Decoding Morse Sequences | SPOJ | 2 | ||

211 | Counting The Way of Bracket Replacement | SPOJ | 2 | ||

212 | String problem | SPOJ | 2 | ||

213 | Partition | SPOJ | 2 | ||

214 | Particular Palindromes | SPOJ | 2 | ||

215 | Balancing the Stone | SPOJ | 2 | ||

216 | String Shuffle | SPOJ | 2 | ||

217 | Street | SPOJ | 2 | ||

218 | Three-coloring of binary trees | SPOJ | 2 | ||

219 | Up Subsequence | SPOJ | 2 | ||

220 | Dab of Backpack | SPOJ | 2 | ||

221 | Dice | SPOJ | 2 | ||

222 | JEDNAKOST | SPOJ | 2 | ||

223 | Feline Olympics - Mouseball | SPOJ | 2 | ||

224 | Catch Fish | SPOJ | 2 | ||

225 | Tourist | SPOJ | 2 | ||

226 | Con-Junctions | SPOJ | 2 | ||

227 | Yoda Goes Palindromic ! | SPOJ | 2 | ||

228 | Esferas | SPOJ | 2 | ||

229 | Temptation Island | SPOJ | 2 | ||

230 | Interesting number | SPOJ | 2 | ||

231 | Sorting is not easy | SPOJ | 2 | ||

232 | Musketeers | SPOJ | 2 | ||

233 | The Courier | SPOJ | 2 | ||

234 | Deliver pizza | SPOJ | 2 | ||

235 | Counting K-Rectangle | SPOJ | 2 | ||

236 | Making A Budget | SPOJ | 2 | ||

237 | Menu | SPOJ | 2 | ||

238 | Nested Dolls | SPOJ | 2 | ||

239 | NERED | SPOJ | 2 | ||

240 | Another Tree Problem | SPOJ | 2 | ||

241 | Another Box Problem | SPOJ | 2 | ||

242 | Tiling | UVA | 2 | ||

243 | Distinct Subsequences | UVA | 2 | ||

244 | Queue | UVA | 2 | ||

245 | Jugs | UVA | 2 | ||

246 | Game Show Math | UVA | 2 | ||

247 | Another Problem on Strings | Codeforces | Codeforces Round #112 (Div. 2) | 2 | |

248 | Password | Codeforces | Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) | 2 | |

249 | Caesar's Legions | Codeforces | Codeforces Beta Round #89 (Div. 2) | 2 | |

250 | Bar Codes | UVA | 2 | ||

251 | Chest of Drawers | UVA | 2 | ||

252 | Marks Distribution | UVA | 2 | ||

253 | Flight Planner | UVA | 2 | ||

254 | Ministry | Timus | 2 | ||

255 | Railway Tickets | Timus | 2 | ||

256 | Anniversary Party | Timus | 2 | ||

257 | Segments | Timus | 2 | ||

258 | False Mirrors | Timus | 2 | ||

259 | Bicolored Horses | Timus | 2 | ||

260 | Brackets Sequence | Timus | 2 | ||

261 | Nudnik Photographer | Timus | 2 | ||

262 | Threeprime Numbers | Timus | 2 | ||

263 | BATMAN1 | SPOJ | 2 | ||

264 | BATMAN2 | SPOJ | 2 | ||

265 | Leaves | SPOJ | 2 | ||

266 | Problem 3 | SPOJ | 2 | ||

267 | Chop Ahoy! Revisited! | Live Archive | 2005 | Africa/Middle East - Arab and North Africa | 2 |

268 | Mosaic | Live Archive | 2009 | North America - Southeast USA | 2 |

269 | BATMAN3 | SPOJ | 2 | ||

270 | Drop the Triples | Live Archive | 2007 | Latin America - South America | 2 |

271 | Always on the run | UVA | 2 | ||

272 | Bit Mask | UVA | 2 | ||

273 | Space Elevator | PKU | 2 | ||

274 | Mobile Service | SPOJ | 2 | ||

275 | Optimal Binary Search Tree | UVA | 2 | ||

276 | Ice Sculptures | Codeforces | VK Cup 2012 Qualification Round 1 | 2 | |

277 | Little Elephant and Painting | CodeChef | 2 | ||

278 | Chopsticks | UVA | 2 | ||

279 | Beautiful People | SGU | 2 | ||

280 | Erdos Numbers | Live Archive | 2000 | Europe - Northwestern & Europe - Southwestern & Europe - Mid-Central | 2 |

281 | Weights and Measures | UVA | 2 | ||

282 | Handball | UVA | 2 | ||

283 | String to Palindrome | UVA | 2 | ||

284 | Black-White Grid | Live Archive | 2006 | Asia - Hanoi | 2 |

285 | George and Job | Codeforces | Codeforces Round #267 (Div. 2) | 2 | |

286 | Cow Frisbee Team | TJU | 2 | ||

287 | String Partition | UVA | 2 | ||

288 | Tower of Cubes | UVA | 2 | ||

289 | Pebble Solitaire | UVA | 2 | ||

290 | String Computer | UVA | 2 | ||

291 | Make Palindrome | UVA | 2 | ||

292 | String Distance and Transform Process | UVA | 2 | ||

293 | Again Palindrome | UVA | 2 | ||

294 | Slurpys | UVA | 2 | ||

295 | The Marriage Interview :-) | UVA | 2 | ||

296 | Simple Minded Hashing | UVA | 2 | ||

297 | Murcia's Skyline | UVA | 2 | ||

298 | Diving for Gold | UVA | 2 | ||

299 | Trouble of 13-Dots | UVA | 2 | ||

300 | Longest Match | UVA | 2 | ||

301 | Sum of Different Primes | UVA | 2 | ||

302 | Walking on the Safe Side | UVA | 2 | ||

303 | Pebbles | Live Archive | 2007 | North America - Pacific Northwest & North America - Southern California | 2 |

304 | Game of Sum | UVA | 2 | ||

305 | Fibonacci System | Live Archive | 2008 | Europe - Northeastern | 2 |

306 | Painting the balls | SGU | 2 | ||

307 | Destruction Cannon | URI | 2 | ||

308 | Travelling Salesman | UVA | 2 | ||

309 | Rain | SPOJ | 2 | ||

310 | Fibo | A2 Online Judge | 2 | ||

311 | Boxes | UVA | 2 | ||

312 | Counting binary strings | SPOJ | 2 | ||

313 | Motoboy | URI | 2 | ||

314 | Color the Fence | Codeforces | Codeforces Round #202 (Div. 2) | 2 | |

315 | KTV | UVA | 2 | ||

316 | Tight Words | UVA | 2 | ||

317 | Square | UVA | 2 | ||

318 | Soldier and Number Game | Codeforces | Codeforces Round #304 (Div. 2) | 2 | |

319 | 1807 | SPOJ | 2 | ||

320 | Geometric Progression | Codeforces | Codeforces Round #Pi (Div. 2) | 2 | |

321 | Land Acquisition | SPOJ | 2 | ||

322 | Restoring Password | Codeforces | Codeforces Beta Round #76 (Div. 2 Only) | 2 | |

323 | New Year and Domino | Codeforces | Good Bye 2015 | 2 | |

324 | Chain Reaction | Codeforces | Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) | 2 | |

325 | Alternative Thinking | Codeforces | Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) | 2 | |

326 | Approximating a Constant Range | Codeforces | Codeforces Round #333 (Div. 2) | 2 | |

327 | Modulo Sum | Codeforces | Codeforces Round #319 (Div. 2) | 2 | |

328 | Kyoya and Colored Balls | Codeforces | Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) | 2 | |

329 | Covered Path | Codeforces | Codeforces Round #298 (Div. 2) | 2 | |

330 | Photo to Remember | Codeforces | VK Cup 2015 - Qualification Round 1 | 2 | |

331 | Reposts | Codeforces | VK Cup 2015 - Qualification Round 1 | 2 | |

332 | Mr. Kitayuta's Colorful Graph | Codeforces | Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) | 2 | |

333 | DZY Loves Sequences | Codeforces | Codeforces Round #255 (Div. 1) & Codeforces Round #255 (Div. 2) | 2 | |

334 | Inna and Choose Options | Codeforces | Codeforces Round #234 (Div. 2) | 2 | |

335 | Polo the Penguin and Matrix | Codeforces | Codeforces Round #177 (Div. 2) | 2 | |

336 | Mr. Kitayuta's Gift | Codeforces | Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) | 2 | |

337 | Dancing Cows | SPOJ | 2 | ||

338 | Vasya and String | Codeforces | Codeforces Round #354 (Div. 2) | 2 | |

339 | Bing it | Live Archive | 2009 | Asia - Harbin | 2 |

340 | Wooden Sticks | SPOJ | 2 | ||

341 | Sequence | Live Archive | 2014 | Asia - Kuala Lumpur | 2 |

342 | Concert Tour | Live Archive | 2014 | Asia - Bangkok | 2 |

343 | Shopping | Live Archive | 2014 | Asia - Tokyo | 2 |

344 | Maximum sum on a torus | UVA | 2 | ||

345 | Maximum Sub-sequence Product | UVA | 2 | ||

346 | Another Longest Increasing Subsequence Problem | SPOJ | 2 | ||

347 | Hard problem | Codeforces | Codeforces Round #367 (Div. 2) | 2 | |

348 | Triangular N-Queens Problem | Live Archive | 2006 | North America - Greater NY | 2 |

349 | Pay the Price | UVA | 2 | ||

350 | Making Change | UVA | 2 | ||

351 | Functions again | Codeforces | Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) | 2 | |

352 | Tennis Championship | Codeforces | Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) | 2 | |

353 | Timofey and a tree | Codeforces | Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) | 2 | |

354 | Pride | Codeforces | Codeforces Round #446 (Div. 1) & Codeforces Round #446 (Div. 2) | 2 | |

355 | Game of Credit Cards | Codeforces | Codeforces Round #401 (Div. 2) | 2 | |

356 | Journey | Codeforces | Codeforces Round #428 (Div. 2) | 2 | |

357 | A DP Problem | Live Archive | 2003 | Asia - Tehran | 2 |

358 | Polo the Penguin and Strings | Codeforces | Codeforces Round #177 (Div. 1) & Codeforces Round #177 (Div. 2) | 2 | |

359 | Ra-One Numbers | SPOJ | 2 | ||

360 | G-One Numbers | SPOJ | 2 | ||

361 | LUCIFER Number | SPOJ | 2 | ||

362 | Squares | UVA | 2 | ||

363 | Ferry Loading | UVA | 2 | ||

364 | Unnatural Conditions | Codeforces | AIM Tech Round 5 (rated, Div. 1 + Div. 2) | 2 | |

365 | Sinking Ship | Codeforces | Codeforces Beta Round #59 (Div. 2) | 2 | |

366 | Quadratic Equation | SPOJ | 2 | ||

367 | Candy (Again) | SPOJ | 3 | ||

368 | Slikar | SPOJ | 3 | ||

369 | Palindromic Subsequence | UVA | 3 | ||

370 | String reduction | SPOJ | 3 | ||

371 | Paid Roads | SPOJ | 3 | ||

372 | Common Subsequences | SPOJ | 3 | ||

373 | Even Palindrome | SPOJ | 3 | ||

374 | The Secret of an Aerolite | SPOJ | 3 | ||

375 | Hackers' Crackdown | UVA | 3 | ||

376 | Minus Operation | SPOJ | 3 | ||

377 | Partition the sequence | SPOJ | 3 | ||

378 | Traveling by Stagecoach | SPOJ | 3 | ||

379 | Maximum Triangle Area | SPOJ | 3 | ||

380 | Polygon | SPOJ | 3 | ||

381 | Help Bob | SPOJ | 3 | ||

382 | Many polygons | SPOJ | 3 | ||

383 | Fast Food | UVA | 3 | ||

384 | Budget Travel | UVA | 3 | ||

385 | Free Candies | UVA | 3 | ||

386 | Physics Practical | Codeforces | Codeforces Round #154 (Div. 2) | 3 | |

387 | To Add or Not to Add | Codeforces | Codeforces Round #143 (Div. 2) | 3 | |

388 | Barcode | Codeforces | Codeforces Round #139 (Div. 2) | 3 | |

389 | Choosing Capital for Treeland | Codeforces | Codeforces Round #135 (Div. 2) | 3 | |

390 | Little Elephant and Interval | Codeforces | Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) | 3 | |

391 | Distance in Tree | Codeforces | VK Cup 2012 Round 1 | 3 | |

392 | Longest Regular Bracket Sequence | Codeforces | Codeforces Beta Round #5 | 3 | |

393 | Mysterious Present | Codeforces | Codeforces Beta Round #4 (Div. 2 Only) | 3 | |

394 | The least round way | Codeforces | Codeforces Beta Round #2 | 3 | |

395 | ZigZag | TopCoder | TCCC '03 Semifinals 3 - Div1 easy] (4493) | 3 | |

396 | BadNeighbors | TopCoder | TCCC '04 Round 4 - Div1 easy] (5009) | 3 | |

397 | Hierarchy | Timus | 3 | ||

398 | Gentlemen | Timus | 3 | ||

399 | Minimal Coverage | Timus | 3 | ||

400 | Intervals of Monotonicity | Timus | 3 | ||

401 | Sense of Beauty | Timus | 3 | ||

402 | Mnemonics and Palindromes | Timus | 3 | ||

403 | Raucous Rockers | UVA | 3 | ||

404 | COUNT PAREN | SPOJ | 3 | ||

405 | How Many O's? | UVA | 3 | ||

406 | Bribe the Prisoners | SPOJ | 3 | ||

407 | I-Keyboard | Live Archive | 2000 | Europe - Central | 3 |

408 | Orchard Trees | UVA | 3 | ||

409 | Determine it | UVA | 3 | ||

410 | Car with powers | SPOJ | 3 | ||

411 | Make Psycho | SPOJ | 3 | ||

412 | Most Servings Meal | SPOJ | 3 | ||

413 | Term Strategy | UVA | 3 | ||

414 | Best Coalitions | UVA | 3 | ||

415 | RGBStreet | TopCoder | SRM 325 - Div2 medium] (10005) | 3 | |

416 | Cards, bags and coins | CodeChef | 3 | ||

417 | Sereja and Game | CodeChef | 3 | ||

418 | Little Elephant and Movies | CodeChef | 3 | ||

419 | Zeta-Nim Game | CodeChef | 3 | ||

420 | The Matrix Game | CodeChef | 3 | ||

421 | Pleasing Chief | CodeChef | 3 | ||

422 | Maximum Absurdity | Codeforces | Codeforces Round #193 (Div. 2) | 3 | |

423 | Building Bridges(HARD) | SPOJ | 3 | ||

424 | Gargari and Permutations | Codeforces | Codeforces Round #264 (Div. 2) | 3 | |

425 | Fetching Cooking Tools | CodeChef | 3 | ||

426 | Color Stripe | Codeforces | Codeforces Round #135 (Div. 2) | 3 | |

427 | Crime Wave - The Sequel | UVA | 3 | ||

428 | Many Paths, One Destination | UVA | 3 | ||

429 | Scheduling Lectures | UVA | 3 | ||

430 | AGTC | UVA | 3 | ||

431 | Hippity Hopscotch | UVA | 3 | ||

432 | Little Red Riding Hood | UVA | 3 | ||

433 | Walking Around Wisely | UVA | 3 | ||

434 | Probablistic OR | SPOJ | 3 | ||

435 | End up with More Teams | UVA | 3 | ||

436 | Fewest Flops | UVA | 3 | ||

437 | IOI07 Miners | SPOJ | 3 | ||

438 | Beautiful Numbers | UVA | 3 | ||

439 | Mr. Kitayuta, the Treasure Hunter | Codeforces | Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) | 3 | |

440 | Dynamic LCA | SPOJ | 3 | ||

441 | Sum of Digits | Timus | 3 | ||

442 | Tour | UVA | 3 | ||

443 | Count Paths | A2 Online Judge | 3 | ||

444 | Plug-in | Codeforces | Yandex.Algorithm Open 2011 Qualification 1 | 3 | |

445 | Internet Address | Codeforces | CROC-MBTU 2012, Elimination Round (ACM-ICPC) | 3 | |

446 | Petya and Java | Codeforces | Codeforces Beta Round #61 (Div. 2) | 3 | |

447 | Lazy Math Instructor | Live Archive | 2000 | Asia - Tehran | 3 |

448 | Simple Strings | Codeforces | Educational Codeforces Round 12 | 3 | |

449 | Hard Process | Codeforces | Educational Codeforces Round 11 | 3 | |

450 | Bear and Compressing | Codeforces | IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) | 3 | |

451 | New Skateboard | Codeforces | Educational Codeforces Round 8 | 3 | |

452 | Cards | Codeforces | 8VC Venture Cup 2016 - Elimination Round | 3 | |

453 | Longtail Hedgehog | Codeforces | Codeforces Round #338 (Div. 2) | 3 | |

454 | Zuma | Codeforces | Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) | 3 | |

455 | Kefa and Dishes | Codeforces | Codeforces Round #321 (Div. 2) | 3 | |

456 | Bear and Blocks | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) | 3 | |

457 | Vanya and Scales | Codeforces | Codeforces Round #308 (Div. 2) | 3 | |

458 | Mike and Feet | Codeforces | Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) | 3 | |

459 | Writing Code | Codeforces | Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) | 3 | |

460 | A and B and Interesting Substrings | Codeforces | Codeforces Round #294 (Div. 2) | 3 | |

461 | Ilya and Escalator | Codeforces | Codeforces Round #293 (Div. 2) | 3 | |

462 | Painting Fence | Codeforces | Codeforces Round #256 (Div. 2) | 3 | |

463 | Working out | Codeforces | Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) | 3 | |

464 | Booking System | Codeforces | Codeforces Round #241 (Div. 2) | 3 | |

465 | Art Union | Codeforces | Codeforces Round #241 (Div. 2) | 3 | |

466 | Long Path | Codeforces | Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) | 3 | |

467 | Bear and Prime Numbers | Codeforces | Codeforces Round #226 (Div. 2) | 3 | |

468 | Permutation | Codeforces | Codeforces Round #209 (Div. 2) | 3 | |

469 | Bubble Sort Graph | Codeforces | Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) | 3 | |

470 | Xenia and Weights | Codeforces | Codeforces Round #197 (Div. 2) | 3 | |

471 | Greg and Graph | Codeforces | Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) | 3 | |

472 | Ladder | Codeforces | Codeforces Round #171 (Div. 2) | 3 | |

473 | Little Girl and Maximum XOR | Codeforces | Codeforces Round #169 (Div. 2) | 3 | |

474 | Greenhouse Effect | Codeforces | Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) | 3 | |

475 | Good Sequences | Codeforces | Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) | 3 | |

476 | Omar Loves Candies | A2 Online Judge | 3 | ||

477 | Robbers' watch | Codeforces | Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) | 3 | |

478 | Recycling Bottles | Codeforces | Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) | 3 | |

479 | Alyona and the Tree | Codeforces | Codeforces Round #358 (Div. 2) | 3 | |

480 | Greedy Hydra | SPOJ | 3 | ||

481 | Coloring Trees | Codeforces | Codeforces Round #369 (Div. 2) | 3 | |

482 | Triangles | Live Archive | 2014 | South Pacific | 3 |

483 | Ada and Game | SPOJ | 3 | ||

484 | An impassioned circulation of affection | Codeforces | Codeforces Round #418 (Div. 2) | 3 | |

485 | The Debut Album | Timus | 3 | ||

486 | String Popping | UVA | 3 | ||

487 | FOODIE | SPOJ | 3 | ||

488 | Shopping Trip | UVA | 3 | ||

489 | Arpa's weak amphitheater and Mehrdad's valuable Hoses | Codeforces | Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) | 3 | |

490 | Hopeless Coach | TJU | 3 | ||

491 | Alyona and Spreadsheet | Codeforces | Codeforces Round #401 (Div. 2) | 3 | |

492 | Sagheer, the Hausmeister | Codeforces | Codeforces Round #417 (Div. 2) | 3 | |

493 | Mike and gcd problem | Codeforces | Codeforces Round #410 (Div. 2) | 3 | |

494 | Mahmoud and a Message | Codeforces | Codeforces Round #396 (Div. 2) | 3 | |

495 | Journey | Codeforces | Codeforces Round #374 (Div. 2) | 3 | |

496 | Re-Arrange II | SPOJ | 3 | ||

497 | Combo Deal | UVA | 3 | ||

498 | ACM (ACronym Maker) | Live Archive | 2005 | North America - East Central NA | 3 |

499 | Save the problem! | Codeforces | MemSQL Start[c]UP 3.0 - Round 2 (onsite finalists) | 3 | |

500 | The Vindictive Coach | UVA | 3 | ||

501 | Boy Scouts | SPOJ | 4 | ||

502 | Antimonotonicity | UVA | 4 | ||

503 | Let go to the movies | SPOJ | 4 | ||

504 | Who is The Boss | SPOJ | 4 | ||

505 | Drop the Triples | SPOJ | 4 | ||

506 | Najkraci | SPOJ | 4 | ||

507 | Convex Polygons | SPOJ | 4 | ||

508 | Trees Again | SPOJ | 4 | ||

509 | Batman | UVA | 4 | ||

510 | Almost Arithmetical Progression | Codeforces | Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) | 4 | |

511 | Chilly Willy | Codeforces | Codeforces Round #152 (Div. 2) | 4 | |

512 | Queries for Number of Palindromes | Codeforces | CROC-MBTU 2012, Elimination Round (ACM-ICPC) | 4 | |

513 | Weather | Codeforces | Codeforces Round #145 (Div. 2, ACM-ICPC Rules) | 4 | |

514 | Hometask | Codeforces | Codeforces Round #131 (Div. 2) | 4 | |

515 | Palindrome pairs | Codeforces | VK Cup 2012 Qualification Round 2 | 4 | |

516 | Message | Codeforces | Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) | 4 | |

517 | Hometask | Codeforces | Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) | 4 | |

518 | Bag of mice | Codeforces | Codeforces Round #105 (Div. 2) | 4 | |

519 | Buns | Codeforces | Codeforces Beta Round #82 (Div. 2) | 4 | |

520 | Enemy is weak | Codeforces | Codeforces Beta Round #57 (Div. 2) | 4 | |

521 | Eternal Victory | Codeforces | Codeforces Beta Round #57 (Div. 2) | 4 | |

522 | Fatawy | SPOJ | 4 | ||

523 | Malevich Strikes Back! | Timus | 4 | ||

524 | Folding | Timus | 4 | ||

525 | Mars Canals | Timus | 4 | ||

526 | Bottle Taps | Timus | 4 | ||

527 | Classmates 2 | Timus | 4 | ||

528 | Crack | Timus | 4 | ||

529 | SMS | Timus | 4 | ||

530 | Gasoline Station | Timus | 4 | ||

531 | One-two, One-two 2 | Timus | 4 | ||

532 | Lemon Tale | Timus | 4 | ||

533 | Communication Fiend | Timus | 4 | ||

534 | Chocolate | SPOJ | 4 | ||

535 | ICPC Team Strategy | UVA | 4 | ||

536 | Zeros and Ones | UVA | 4 | ||

537 | BATMAN4 | SPOJ | 4 | ||

538 | Bit by Bit | SPOJ | 4 | ||

539 | The Bridges of Kolsberg | UVA | 4 | ||

540 | Busy Programmer | UVA | 4 | ||

541 | Chocolate Box | UVA | 4 | ||

542 | Digit Sum | UVA | 4 | ||

543 | Dominoes | SPOJ | 4 | ||

544 | Tiling Dominoes | UVA | 4 | ||

545 | INVITATION FOR TECHOFES | SPOJ | 4 | ||

546 | Expect the Expected | UVA | 4 | ||

547 | Dumb Bones | UVA | 4 | ||

548 | Minion Circle | CodeChef | 4 | ||

549 | Lov-e Pap Pap-e Polti | SPOJ | 4 | ||

550 | Little Elephant and Blocks | CodeChef | 4 | ||

551 | Pashmak and Graph | Codeforces | Codeforces Round #261 (Div. 2) | 4 | |

552 | Magic, Wizardry and Wonders | Codeforces | Codeforces Round #143 (Div. 2) | 4 | |

553 | Another Assignment Problem | SPOJ | 4 | ||

554 | Little Pony and Harmony Chest | Codeforces | Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) | 4 | |

555 | Matchsticks | TJU | 4 | ||

556 | Antimatter Ray Clearcutting | UVA | 4 | ||

557 | Bright Bracelet | Live Archive | 2003 | North America - Mid-Central USA | 4 |

558 | Fortune Telling | Codeforces | Codeforces Beta Round #55 (Div. 2) | 4 | |

559 | Balanced Numbers | SPOJ | 4 | ||

560 | Avoiding Jungle in the Dark | UVA | 4 | ||

561 | Account Book | UVA | 4 | ||

562 | Matches | UVA | 4 | ||

563 | Fox And Jumping | Codeforces | Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) | 4 | |

564 | A Lot of Games | Codeforces | Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) | 4 | |

565 | Red-Green Towers | Codeforces | Codeforces Round #273 (Div. 2) | 4 | |

566 | Number of Paths in the Empire | SGU | 4 | ||

567 | Civilization | Codeforces | Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) | 4 | |

568 | Fools and Roads | Codeforces | Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) | 4 | |

569 | DIVSEQ | SPOJ | 4 | ||

570 | Dima and Salad | Codeforces | Codeforces Round #214 (Div. 2) | 4 | |

571 | Image Preview | Codeforces | Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) | 4 | |

572 | Babaei and Birthday Cake | Codeforces | Codeforces Round #343 (Div. 2) | 4 | |

573 | XOR Equation | Codeforces | 8VC Venture Cup 2016 - Final Round | 4 | |

574 | Once Again... | Codeforces | Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) | 4 | |

575 | Gerald and Giant Chess | Codeforces | Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) | 4 | |

576 | Arthur and Table | Codeforces | Codeforces Round #311 (Div. 2) | 4 | |

577 | Bad Luck Island | Codeforces | Codeforces Round #301 (Div. 2) | 4 | |

578 | Clique Problem | Codeforces | Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) | 4 | |

579 | A and B and Lecture Rooms | Codeforces | Codeforces Round #294 (Div. 2) | 4 | |

580 | Riding in a Lift | Codeforces | Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) | 4 | |

581 | Appleman and Tree | Codeforces | Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) | 4 | |

582 | Prefixes and Suffixes | Codeforces | Codeforces Round #246 (Div. 2) | 4 | |

583 | Maximum Submatrix 2 | Codeforces | Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) | 4 | |

584 | Jeff and Rounding | Codeforces | Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) | 4 | |

585 | Book of Evil | Codeforces | Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) | 4 | |

586 | Shaass and Bookshelf | Codeforces | Codeforces Round #178 (Div. 2) | 4 | |

587 | Cow Program | Codeforces | Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) | 4 | |

588 | Zero Tree | Codeforces | Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) | 4 | |

589 | Letter | Codeforces | Codeforces Round #116 (Div. 2, ACM-ICPC Rules) | 4 | |

590 | Round Table Knights | Codeforces | Codeforces Beta Round #65 (Div. 2) | 4 | |

591 | Reberland Linguistics | Codeforces | Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) | 4 | |

592 | The Child and Zoo | Codeforces | Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) | 4 | |

593 | The Values You Can Make | Codeforces | Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) | 4 | |

594 | Ingredients | SPOJ | 4 | ||

595 | Generate a String | Codeforces | Educational Codeforces Round 16 | 4 | |

596 | Forming Teams | Codeforces | Codeforces Round #133 (Div. 2) | 4 | |

597 | Can U Win? | UVA | 4 | ||

598 | Bridge Building | UVA | 4 | ||

599 | Cái túi ( Hard version ) | SPOJ Vietnam | 4 | ||

600 | Drazil and Tiles | Codeforces | Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) | 4 | |

601 | Going Postal | Live Archive | 2014 | South Pacific | 4 |

602 | Namit In Trouble | SPOJ | 4 | ||

603 | New Year and Fireworks | Codeforces | Good Bye 2016 | 4 | |

604 | Pie Rules | Codeforces | MemSQL Start[c]UP 3.0 - Round 1 | 4 | |

605 | Fire | Codeforces | Codeforces Round #436 (Div. 2) | 4 | |

606 | Rent your airplane and make money | Live Archive | 2003 | Europe - Southwestern | 4 |

607 | Vladik and Memorable Trip | Codeforces | Codeforces Round #416 (Div. 2) | 4 | |

608 | Connecting Universities | Codeforces | Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) | 4 | |

609 | Office Keys | Codeforces | Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) | 4 | |

610 | The Intriguing Obsession | Codeforces | Codeforces Round #439 (Div. 2) | 4 | |

611 | Chloe and pleasant prizes | Codeforces | Codeforces Round #384 (Div. 2) | 4 | |

612 | Divide and conquer | CodeChef | 4 | ||

613 | Fire Again | Codeforces | Codeforces Beta Round #35 (Div. 2) | 4 | |

614 | Binary Search | Live Archive | 2000 | Europe - Northeastern | 4 |

615 | Expression Again | UVA | 4 | ||

616 | XOR-pyramid | Codeforces | Codeforces Round #483 (Div. 1) [Thanks, Botan Investments and Victor Shaburov!] & Codeforces Round #483 (Div. 2) [Thanks, Botan Investments and Victor Shaburov!] | 4 | |

617 | Party | A2 Online Judge | 4 | ||

618 | Python Indentation | Codeforces | Codeforces Round #455 (Div. 2) | 4 | |

619 | Cookies | Codeforces | Codeforces Beta Round #64 | 4 | |

620 | Philip J. Fry Problem | UVA | 4 | ||

621 | Free Parentheses | UVA | 4 | ||

622 | Assignments | Live Archive | 2010 | Asia - Harbin | 4 |

623 | DNA Laboratory | SPOJ | 5 | ||

624 | Allergy Test | UVA | 5 | ||

625 | Coin Changing Again | UVA | 5 | ||

626 | Huffman´s Greed | SPOJ | 5 | ||

627 | Connect Line Segments | SPOJ | 5 | ||

628 | Optimal Cut | UVA | 5 | ||

629 | Independent Attacking Zones | UVA | 5 | ||

630 | Clear Symmetry | Codeforces | Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) | 5 | |

631 | Dynasty Puzzles | Codeforces | Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) | 5 | |

632 | Compatible Numbers | Codeforces | Codeforces Round #112 (Div. 2) | 5 | |

633 | Substring and Subsequence | Codeforces | VK Cup 2012 Round 2 | 5 | |

634 | Porcelain | Codeforces | Codeforces Round #105 (Div. 2) | 5 | |

635 | Logo Turtle | Codeforces | Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) | 5 | |

636 | Games with Rectangle | Codeforces | Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) | 5 | |

637 | Spiders | Codeforces | School Regional Team Contest, Saratov, 2011 | 5 | |

638 | Petr# | Codeforces | Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) | 5 | |

639 | Basketball Team | Codeforces | Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) | 5 | |

640 | Number With The Given Amount Of Divisors | Codeforces | Codeforces Beta Round #27 (Codeforces format, Div. 2) | 5 | |

641 | Bargaining Table | Codeforces | Codeforces Beta Round #22 (Div. 2 Only) | 5 | |

642 | Checkout Assistant | Codeforces | Codeforces Beta Round #19 | 5 | |

643 | Sequence | Codeforces | Codeforces Beta Round #13 | 5 | |

644 | A Simple Task | Codeforces | Codeforces Beta Round #11 | 5 | |

645 | How many trees? | Codeforces | Codeforces Beta Round #9 (Div. 2 Only) | 5 | |

646 | K-based Numbers. Version 3 | Timus | 5 | ||

647 | Ship Routes | Timus | 5 | ||

648 | Train | Timus | 5 | ||

649 | Enterprise | Timus | 5 | ||

650 | Cargo Agency | Timus | 5 | ||

651 | Roadworks | Timus | 5 | ||

652 | Happiness to People! | Timus | 5 | ||

653 | Timus | 5 | |||

654 | Anniversary Firework | Timus | 5 | ||

655 | Atomic Car Race | UVA | 5 | ||

656 | IPL - CRICKET TOURNAMENT | SPOJ | 5 | ||

657 | The Islands | UVA | 5 | ||

658 | Candy | UVA | 5 | ||

659 | Fibonacci Words | UVA | 5 | ||

660 | CreatureTraining | TopCoder | TCO08 Round 2 - Div1 medium] (12012) | 5 | |

661 | Lucky Common Subsequence | Codeforces | Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) | 5 | |

662 | Kalila and Dimna in the Logging Industry | Codeforces | Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) | 5 | |

663 | JUMPING DORA | SPOJ | 5 | ||

664 | GO FOR DIAMONDS | SPOJ | 5 | ||

665 | Subsequence Problem | SPOJ | 5 | ||

666 | Weak Links | UVA | 5 | ||

667 | Sereja and Bubble Sort | CodeChef | 5 | ||

668 | Count Digits | CodeChef | 5 | ||

669 | Paint the Tree | CodeChef | 5 | ||

670 | Increase Sequence | Codeforces | Codeforces Round #266 (Div. 2) | 5 | |

671 | WordMath | TopCoder | Unknown () | 5 | |

672 | Summing Slopes | CodeChef | 5 | ||

673 | Patches | URI | 5 | ||

674 | Promotion | URI | 5 | ||

675 | Hotel | Live Archive | 2005 | Asia - Tehran | 5 |

676 | Antimatter | Codeforces | Codeforces Round #225 (Div. 1) | 5 | |

677 | Two Paths | Codeforces | Codeforces Beta Round #14 (Div. 2) | 5 | |

678 | Robot Rapping Results Report | Codeforces | CROC 2016 - Elimination Round | 5 | |

679 | Running with Obstacles | Codeforces | VK Cup 2016 - Qualification Round 1 | 5 | |

680 | Spy Syndrome 2 | Codeforces | Manthan, Codefest 16 | 5 | |

681 | Famil Door and Brackets | Codeforces | Codeforces Round #343 (Div. 2) | 5 | |

682 | Wet Shark and Blocks | Codeforces | Codeforces Round #341 (Div. 2) | 5 | |

683 | Running Track | Codeforces | Codeforces Round #338 (Div. 2) | 5 | |

684 | Chocolate Bar | Codeforces | Educational Codeforces Round 1 | 5 | |

685 | Restaurant | Codeforces | Testing Round #12 | 5 | |

686 | Super M | Codeforces | Codeforces Round #328 (Div. 2) | 5 | |

687 | Minimization | Codeforces | Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) | 5 | |

688 | Symmetric and Transitive | Codeforces | Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) | 5 | |

689 | Clique in the Divisibility Graph | Codeforces | VK Cup 2015 - Finals, online mirror | 5 | |

690 | Correcting Mistakes | Codeforces | VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) | 5 | |

691 | Inversions problem | Codeforces | Rockethon 2015 | 5 | |

692 | Sums of Digits | Codeforces | Codeforces Round #289 (Div. 2, ACM ICPC Rules) | 5 | |

693 | Breaking Good | Codeforces | Codeforces Round #287 (Div. 2) | 5 | |

694 | Obsessive String | Codeforces | Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) | 5 | |

695 | Strip | Codeforces | Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) | 5 | |

696 | Valid Sets | Codeforces | Codeforces Round #277 (Div. 2) | 5 | |

697 | Pillars | Codeforces | Codeforces Round #271 (Div. 2) | 5 | |

698 | Elimination | Codeforces | RCC 2014 Warmup (Div. 2) | 5 | |

699 | Upgrading Array | Codeforces | Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) | 5 | |

700 | Roman and Numbers | Codeforces | Codeforces Round #235 (Div. 2) | 5 | |

701 | Inna and Dima | Codeforces | Codeforces Round #220 (Div. 2) | 5 | |

702 | Counting Rectangles is Fun | Codeforces | Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) | 5 | |

703 | Levko and Array | Codeforces | Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) | 5 | |

704 | Dima and Hares | Codeforces | Codeforces Round #208 (Div. 2) | 5 | |

705 | Vasya and Beautiful Arrays | Codeforces | Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) | 5 | |

706 | Jeff and Furik | Codeforces | Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) | 5 | |

707 | The Great Julya Calendar | Codeforces | ABBYY Cup 3.0 - Finals (online version) | 5 | |

708 | Ciel and Duel | Codeforces | Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) | 5 | |

709 | Connected Components | Codeforces | Croc Champ 2013 - Round 1 | 5 | |

710 | Choosing Balls | Codeforces | Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) | 5 | |

711 | Lucky Tree | Codeforces | Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) | 5 | |

712 | Iahub and Permutations | Codeforces | Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) | 5 | |

713 | The Unreal Tournament | UVA | 5 | ||

714 | Bear and Tower of Cubes | Codeforces | Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) | 5 | |

715 | Alyona and Strings | Codeforces | Codeforces Round #358 (Div. 2) | 5 | |

716 | Sum | Codeforces | Codeforces Beta Round #46 (Div. 2) | 5 | |

717 | Longest Increasing Sequence | UVA | 5 | ||

718 | Mario Kart | A2 Online Judge | 5 | ||

719 | Berzerk | Codeforces | Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) | 5 | |

720 | The Bakery | Codeforces | Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) | 5 | |

721 | An overnight dance in discotheque | Codeforces | Codeforces Round #418 (Div. 2) | 5 | |

722 | Hanoi Factory | Codeforces | Codeforces Round #401 (Div. 2) | 5 | |

723 | Square Subsets | Codeforces | Codeforces Round #448 (Div. 2) | 5 | |

724 | Winter is here | Codeforces | Codeforces Round #428 (Div. 2) | 5 | |

725 | Covering Sets | CodeChef | 5 | ||

726 | HexagonalBattlefield | TopCoder | SRM 449 - Div1 medium] (13903) | 5 | |

727 | Testing the CATCHER | Live Archive | 1994 | World Finals - Phoenix | 5 |

728 | Paint templates | SPOJ | 6 | ||

729 | The Top-Code | SPOJ | 6 | ||

730 | Game --- Mouse and Cheese | UVA | 6 | ||

731 | Bracket Sequence | SPOJ | 6 | ||

732 | Incrementing The Integer | SPOJ | 6 | ||

733 | Mystic Craft | SPOJ | 6 | ||

734 | Little Elephant and Elections | Codeforces | Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) | 6 | |

735 | Let's Play Osu! | Codeforces | Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) | 6 | |

736 | Fence | Codeforces | Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) | 6 | |

737 | Table | Codeforces | Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) | 6 | |

738 | Towers | Codeforces | Codeforces Round #142 (Div. 1) | 6 | |

739 | Decoding Genome | Codeforces | Codeforces Round #137 (Div. 2) | 6 | |

740 | Relay Race | Codeforces | Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) | 6 | |

741 | Numbers | Codeforces | Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) | 6 | |

742 | Police Station | Codeforces | Codeforces Round #130 (Div. 2) | 6 | |

743 | Solitaire | Codeforces | Codeforces Round #130 (Div. 2) | 6 | |

744 | AlgoRace | Codeforces | Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) | 6 | |

745 | File List | Codeforces | VK Cup 2012 Round 3 (Unofficial Div. 2 Edition) | 6 | |

746 | Wizards and Huge Prize | Codeforces | Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) | 6 | |

747 | Phone Talks | Codeforces | VK Cup 2012 Qualification Round 1 | 6 | |

748 | Cipher | Codeforces | Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) | 6 | |

749 | Coloring Brackets | Codeforces | Codeforces Round #106 (Div. 2) | 6 | |

750 | Lucky Subsequence | Codeforces | Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) | 6 | |

751 | Palindromes | Codeforces | Codeforces Beta Round #98 (Div. 2) | 6 | |

752 | Buses | Codeforces | Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) | 6 | |

753 | Interesting Game | Codeforces | Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) | 6 | |

754 | Two out of Three | Codeforces | Yandex.Algorithm 2011 Qualification 2 | 6 | |

755 | Beaver | Codeforces | Codeforces Beta Round #71 | 6 | |

756 | Beaver Game | Codeforces | Codeforces Beta Round #70 (Div. 2) | 6 | |

757 | Train | Codeforces | Codeforces Beta Round #68 | 6 | |

758 | Partial Teacher | Codeforces | Manthan 2011 | 6 | |

759 | Beautiful numbers | Codeforces | Codeforces Beta Round #51 | 6 | |

760 | Anfisa the Monkey | Codeforces | School Team Contest #2 (Winter Computer School 2010/11) | 6 | |

761 | Let's Go Rolling! | Codeforces | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) | 6 | |

762 | Animals | Codeforces | Codeforces Beta Round #35 (Div. 2) | 6 | |

763 | Wonderful Randomized Sum | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 6 | |

764 | Shooting Gallery | Codeforces | Codeforces Beta Round #30 (Codeforces format) | 6 | |

765 | Stripe 2 | Codeforces | Codeforces Alpha Round #21 (Codeforces format) | 6 | |

766 | Fish | Codeforces | Codeforces Beta Round #16 (Div. 2 Only) | 6 | |

767 | LCIS | Codeforces | Codeforces Beta Round #10 | 6 | |

768 | Cinema Cashier | Codeforces | Codeforces Beta Round #10 | 6 | |

769 | Looking for Order | Codeforces | Codeforces Beta Round #8 | 6 | |

770 | Lizards and Basements 2 | Codeforces | Codeforces Beta Round #6 (Div. 2 Only) | 6 | |

771 | ACM Diagnostics | Timus | 6 | ||

772 | Martian Army | Timus | 6 | ||

773 | Eating High | Timus | 6 | ||

774 | Decimation | Timus | 6 | ||

775 | Salary for Robots | Timus | 6 | ||

776 | Alternative Solution | Timus | 6 | ||

777 | Brainwashing Device | Timus | 6 | ||

778 | Plants vs. Zombies HD SP | UVA | 6 | ||

779 | Eleven | UVA | 6 | ||

780 | Ciel and Gondolas | Codeforces | Codeforces Round #190 (Div. 1) | 6 | |

781 | MagicNaming | TopCoder | SRM 526.5 - Div2 hard] (14762) | 6 | |

782 | Sort that Queue | Live Archive | 2005 | Africa/Middle East - Arab and North Africa | 6 |

783 | Oil Skimming | A2 Online Judge | 6 | ||

784 | Common Palindrome | UVA | 6 | ||

785 | Summing Slopes | SPOJ | 6 | ||

786 | Maximum Sub-sequence Product | Live Archive | 1996 | Europe - Southeastern | 6 |

787 | The Maths Lecture | Codeforces | Codeforces Round #287 (Div. 2) | 6 | |

788 | Longest Common Subsequence | SPOJ | 6 | ||

789 | Snakes | A2 Online Judge | 6 | ||

790 | Table Compression | Codeforces | Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) | 6 | |

791 | Magic Numbers | Codeforces | Educational Codeforces Round 8 | 6 | |

792 | Group Projects | Codeforces | 8VC Venture Cup 2016 - Elimination Round | 6 | |

793 | Array GCD | Codeforces | AIM Tech Round (Div. 1) & AIM Tech Round (Div. 2) | 6 | |

794 | Hamiltonian Spanning Tree | Codeforces | Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) | 6 | |

795 | Subsequences | Codeforces | Testing Round #12 | 6 | |

796 | Duff in Beach | Codeforces | Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) | 6 | |

797 | Pig and Palindromes | Codeforces | Codeforces Round #316 (Div. 2) | 6 | |

798 | Vanya and Brackets | Codeforces | Codeforces Round #308 (Div. 2) | 6 | |

799 | Road Improvement | Codeforces | Codeforces Round #302 (Div. 1) | 6 | |

800 | Demiurges Play Again | Codeforces | Codeforces Round #300 | 6 | |

801 | Work Group | Codeforces | VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) | 6 | |

802 | Anya and Cubes | Codeforces | Codeforces Round #297 (Div. 2) | 6 | |

803 | ???? ?? ?????? - 2 (round version) | Codeforces | VK Cup 2015 - Round 1 | 6 | |

804 | Pluses everywhere | Codeforces | Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) | 6 | |

805 | Arthur and Brackets | Codeforces | Codeforces Round #288 (Div. 2) | 6 | |

806 | New Year Domino | Codeforces | Good Bye 2014 | 6 | |

807 | Special Matrices | Codeforces | Codeforces Round #277.5 (Div. 2) | 6 | |

808 | LIS of Sequence | Codeforces | Codeforces Round #277 (Div. 2) | 6 | |

809 | Kindergarten | Codeforces | Codeforces Round #276 (Div. 1) | 6 | |

810 | Dreamoon and Strings | Codeforces | Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) | 6 | |

811 | Fedor and Essay | Codeforces | Codeforces Round #267 (Div. 2) | 6 | |

812 | Substitutes in Number | Codeforces | Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2) | 6 | |

813 | Jzzhu and Numbers | Codeforces | Codeforces Round #257 (Div. 1) | 6 | |

814 | Random Task | Codeforces | Codeforces Round #247 (Div. 2) | 6 | |

815 | Match & Catch | Codeforces | Codeforces Round #244 (Div. 2) | 6 | |

816 | Cunning Gena | Codeforces | RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) | 6 | |

817 | Minesweeper 1D | Codeforces | Codeforces Round #237 (Div. 2) | 6 | |

818 | New Year Letter | Codeforces | Good Bye 2013 | 6 | |

819 | Watching Fireworks is Fun | Codeforces | Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) | 6 | |

820 | Insertion Sort | Codeforces | Codeforces Round #212 (Div. 2) | 6 | |

821 | Palindrome | Codeforces | MemSQL start[c]up Round 2 - online version | 6 | |

822 | EKG | Codeforces | ABBYY Cup 3.0 | 6 | |

823 | Sereja and Subsequences | Codeforces | Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) | 6 | |

824 | Ilya and Roads | Codeforces | Codeforces Round #186 (Div. 2) | 6 | |

825 | Greg and Friends | Codeforces | Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) | 6 | |

826 | Permutation Sum | Codeforces | Codeforces Round #175 (Div. 2) | 6 | |

827 | Yet Another Number Game | Codeforces | Codeforces Round #173 (Div. 2) | 6 | |

828 | Maxim and Restaurant | Codeforces | Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) | 6 | |

829 | Little Elephant and LCM | Codeforces | Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) | 6 | |

830 | Two Strings | Codeforces | Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) | 6 | |

831 | Trains and Statistic | Codeforces | Codeforces Round #353 (Div. 2) | 6 | |

832 | Least Common Multiple | Live Archive | 2014 | South Pacific | 6 |

833 | Segment Tree | SPOJ | 6 | ||

834 | Leha and another game about graph | Codeforces | Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) | 6 | |

835 | Sonya and Problem Wihtout a Legend | Codeforces | Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) | 6 | |

836 | Karen and Supermarket | Codeforces | Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) | 6 | |

837 | Unusual Sequences | Codeforces | Codeforces Round #450 (Div. 2) | 6 | |

838 | Okabe and El Psy Kongroo | Codeforces | Codeforces Round #420 (Div. 2) | 6 | |

839 | Memory and Scores | Codeforces | Codeforces Round #370 (Div. 2) | 6 | |

840 | Mahmoud and a xor trip | Codeforces | Codeforces Round #396 (Div. 2) | 6 | |

841 | Vladik and cards | Codeforces | Codeforces Round #384 (Div. 2) | 6 | |

842 | Dynamic Problem Scoring | Codeforces | VK Cup 2017 - Round 3 | 6 | |

843 | Array Queries | Codeforces | Educational Codeforces Round 19 | 6 | |

844 | Demogorgon | URI | 6 | ||

845 | Save the Python Programmers! | Live Archive | 2010 | North America - Pacific Northwest | 6 |

846 | Money for Nothing | Live Archive | 2017 | World Finals - Rapid City | 6 |

847 | Jill Rides Again | Live Archive | 1997 | World Finals - San Jose | 6 |

848 | Colored Tiles | UVA | 7 | ||

849 | Catch Sheep | SPOJ | 7 | ||

850 | Two Longest Paths | UVA | 7 | ||

851 | Table Tennis | UVA | 7 | ||

852 | Number Transformation | Codeforces | Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) | 7 | |

853 | Blood Cousins Return | Codeforces | Codeforces Round #151 (Div. 2) | 7 | |

854 | World Eater Brothers | Codeforces | Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) | 7 | |

855 | Cactus | Codeforces | Codeforces Round #143 (Div. 2) | 7 | |

856 | Fragile Bridges | Codeforces | Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) | 7 | |

857 | Wooden Fence | Codeforces | Codeforces Round #117 (Div. 2) | 7 | |

858 | Cubes | Codeforces | Codeforces Round #116 (Div. 2, ACM-ICPC Rules) | 7 | |

859 | Word Cut | Codeforces | Croc Champ 2012 - Round 2 | 7 | |

860 | Spiral Maximum | Codeforces | Croc Champ 2012 - Round 1 | 7 | |

861 | Education Reform | Codeforces | Codeforces Beta Round #90 | 7 | |

862 | Petya and Spiders | Codeforces | Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) | 7 | |

863 | Lucky Country | Codeforces | Codeforces Beta Round #77 (Div. 1 Only) | 7 | |

864 | Lucky Numbers | Codeforces | Codeforces Beta Round #77 (Div. 1 Only) | 7 | |

865 | Beavermuncher-0xFF | Codeforces | Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) | 7 | |

866 | Big Maximum Sum | Codeforces | Codeforces Beta Round #67 (Div. 2) | 7 | |

867 | LionAge II | Codeforces | Codeforces Beta Round #66 | 7 | |

868 | Dot | Codeforces | Codeforces Beta Round #63 (Div. 2) | 7 | |

869 | Optical Experiment | Codeforces | Manthan 2011 | 7 | |

870 | Changing a String | Codeforces | Codeforces Beta Round #52 (Div. 2) | 7 | |

871 | First Digit Law | Codeforces | Codeforces Beta Round #50 | 7 | |

872 | Right Triangles | Codeforces | Codeforces Testing Round #1 | 7 | |

873 | Comb | Codeforces | School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) | 7 | |

874 | Phone Number | Codeforces | School Team Contest #2 (Winter Computer School 2010/11) | 7 | |

875 | Pawn | Codeforces | Codeforces Beta Round #40 (Div. 2) | 7 | |

876 | TV Game | Codeforces | Codeforces Beta Round #31 (Div. 2, Codeforces format) | 7 | |

877 | Seller Bob | Codeforces | Codeforces Beta Round #18 (Div. 2 Only) | 7 | |

878 | Camels | Codeforces | Codeforces Beta Round #14 (Div. 2) | 7 | |

879 | Lost in Space | Timus | 7 | ||

880 | Archer's Travel | Timus | 7 | ||

881 | Lunar Code | Timus | 7 | ||

882 | Martian Plates | Timus | 7 | ||

883 | Brainfuck | Timus | 7 | ||

884 | Join | Timus | 7 | ||

885 | Yet Another Answer | Timus | 7 | ||

886 | TheProgrammingContestDivOne | TopCoder | SRM 502 - Div1 medium] (14431) | 7 | |

887 | Cats Transport | Codeforces | Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) | 7 | |

888 | Playing War | UVA | 7 | ||

889 | Merry-go-round | Timus | 7 | ||

890 | Yet Another Assignment Problem | SPOJ | 7 | ||

891 | Component Testing | Live Archive | 2012 | North America - Mid-Atlantic USA & North America - Southern California & North America - Southeast USA | 7 |

892 | Genetic Engineering | Codeforces | Rockethon 2014 | 7 | |

893 | Duckindromes | UVA | 7 | ||

894 | Binary Table | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 7 | |

895 | Fence Divercity | Codeforces | Codeforces Round #346 (Div. 2) | 7 | |

896 | Zip-line | Codeforces | Codeforces Round #345 (Div. 1) | 7 | |

897 | Intellectual Inquiry | Codeforces | CROC 2016 - Elimination Round | 7 | |

898 | Little Artem and Random Variable | Codeforces | VK Cup 2016 - Round 2 | 7 | |

899 | Thief in a Shop | Codeforces | Educational Codeforces Round 9 | 7 | |

900 | Product Sum | Codeforces | Codeforces Round #344 (Div. 2) | 7 | |

901 | Famil Door and Roads | Codeforces | Codeforces Round #343 (Div. 2) | 7 | |

902 | Kleofáš and the n-thlon | Codeforces | Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) | 7 | |

903 | Top Secret Task | Codeforces | Codeforces Round #327 (Div. 1) | 7 | |

904 | Bulbo | Codeforces | Bubble Cup 8 - Finals [Online Mirror] | 7 | |

905 | Ann and Half-Palindrome | Codeforces | Codeforces Round #311 (Div. 2) | 7 | |

906 | Remembering Strings | Codeforces | Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) | 7 | |

907 | Quest | Codeforces | VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) | 7 | |

908 | Transmitting Levels | Codeforces | ZeptoLab Code Rush 2015 | 7 | |

909 | Darth Vader and Tree | Codeforces | Codeforces Round #291 (Div. 2) | 7 | |

910 | Traffic Jams in the Land | Codeforces | Codeforces Round #284 (Div. 1) | 7 | |

911 | Name That Tune | Codeforces | Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) | 7 | |

912 | Treeland Tour | Codeforces | Codeforces Round #279 (Div. 2) | 7 | |

913 | Hiking | Codeforces | Codeforces Round #277.5 (Div. 2) | 7 | |

914 | Devu and Birthday Celebration | Codeforces | Codeforces Round #251 (Div. 2) | 7 | |

915 | Special Grid | Codeforces | Codeforces Round #249 (Div. 2) | 7 | |

916 | Guess the Tree | Codeforces | Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) | 7 | |

917 | Sereja and Two Sequences | Codeforces | Codeforces Round #243 (Div. 1) & Codeforces Round #243 (Div. 2) | 7 | |

918 | President's Path | Codeforces | Codeforces Round #241 (Div. 2) | 7 | |

919 | Beautiful Pairs of Numbers | Codeforces | Codeforces Round #236 (Div. 1) | 7 | |

920 | Painting The Wall | Codeforces | Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) | 7 | |

921 | Captains Mode | Codeforces | Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) | 7 | |

922 | Inna and Sequence | Codeforces | Codeforces Round #220 (Div. 2) | 7 | |

923 | Valera and Fools | Codeforces | Codeforces Round #216 (Div. 2) | 7 | |

924 | Free Market | Codeforces | Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) | 7 | |

925 | Levko and Strings | Codeforces | Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) | 7 | |

926 | Lucky Number Representation | Codeforces | Codeforces Round #206 (Div. 1) | 7 | |

927 | Axis Walking | Codeforces | Codeforces Round #191 (Div. 2) | 7 | |

928 | Game with Powers | Codeforces | Codeforces Round #188 (Div. 1) | 7 | |

929 | Yaroslav and Two Strings | Codeforces | Codeforces Round #179 (Div. 2) | 7 | |

930 | Coin Troubles | Codeforces | Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) | 7 | |

931 | Maxim and Matrix | Codeforces | Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) | 7 | |

932 | Plus and xor | Codeforces | All-Ukrainian School Olympiad in Informatics | 7 | |

933 | Game | Codeforces | Codeforces Beta Round #46 (Div. 2) | 7 | |

934 | Black and White Tree | Codeforces | Codeforces Round #158 (Div. 2) | 7 | |

935 | Nanami's Digital Board | Codeforces | Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) | 7 | |

936 | Divisor Tree | Codeforces | Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) | 7 | |

937 | Identify the Number | A2 Online Judge | 7 | ||

938 | FibonacciKnapsack | TopCoder | SRM 352 - Div1 medium] (10709) | 7 | |

939 | Longest Run on a Snowboard | Live Archive | 2006 | Asia - Coimbatore | 7 |

940 | Rent your airplane and make money | UVA | 7 | ||

941 | Hongcow Buys a Deck of Cards | Codeforces | Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) | 7 | |

942 | On the Bench | Codeforces | Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) | 7 | |

943 | Ant Man | Codeforces | Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) | 7 | |

944 | Vladik and chat | Codeforces | Codeforces Round #390 (Div. 2) | 7 | |

945 | Maximum Questions | Codeforces | Codeforces Round #450 (Div. 2) | 7 | |

946 | Ralph and Mushrooms | Codeforces | Codeforces Round #447 (Div. 2) | 7 | |

947 | Fafa and Ancient Mathematics | Codeforces | Codeforces Round #465 (Div. 2) | 7 | |

948 | Pictures with Kittens (hard version) | Codeforces | Codeforces Round #521 (Div. 3) | 7 | |

949 | Segment Sum | Codeforces | Educational Codeforces Round 53 (Rated for Div. 2) | 7 | |

950 | Lannister Army | SPOJ | 7 | ||

951 | Sweets Problem | CodeChef | 7 | ||

952 | Little Elephant and Broken Sorting | Codeforces | Codeforces Round #157 (Div. 1) | 8 | |

953 | Lucky Arrays | Codeforces | Codeforces Round #156 (Div. 1) | 8 | |

954 | Number Challenge | Codeforces | Codeforces Round #146 (Div. 1) | 8 | |

955 | Gifts | Codeforces | Codeforces Round #142 (Div. 1) | 8 | |

956 | Fractal Detector | Codeforces | Codeforces Round #141 (Div. 2) | 8 | |

957 | Periodical Numbers | Codeforces | Codeforces Round #132 (Div. 2) | 8 | |

958 | IT Restaurants | Codeforces | VK Cup 2012 Finals (unofficial online-version) | 8 | |

959 | Multicolored Marbles | Codeforces | VK Cup 2012 Finals, Practice Session | 8 | |

960 | Name | Codeforces | Codeforces Round #116 (Div. 2, ACM-ICPC Rules) | 8 | |

961 | Polycarpus the Safecracker | Codeforces | VK Cup 2012 Round 1 | 8 | |

962 | Help Caretaker | Codeforces | Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) | 8 | |

963 | Clearing Up | Codeforces | Codeforces Round #101 (Div. 2) | 8 | |

964 | New Year Garland | Codeforces | Codeforces Round #100 | 8 | |

965 | Constants in the language of Shakespeare | Codeforces | Codeforces Beta Round #96 (Div. 1) | 8 | |

966 | Fibonacci Sums | Codeforces | Codeforces Beta Round #93 (Div. 1 Only) | 8 | |

967 | Brackets | Codeforces | Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) | 8 | |

968 | Linear Kingdom Races | Codeforces | Codeforces Beta Round #87 (Div. 1 Only) | 8 | |

969 | Castle | Codeforces | Codeforces Beta Round #79 (Div. 1 Only) | 8 | |

970 | Widget Library | Codeforces | Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) | 8 | |

971 | Beautiful Road | Codeforces | Codeforces Beta Round #73 (Div. 1 Only) | 8 | |

972 | Genetic engineering | Codeforces | Yandex.Algorithm 2011 Round 2 | 8 | |

973 | Numbers | Codeforces | Codeforces Beta Round #72 (Div. 1 Only) | 8 | |

974 | Password | Codeforces | Codeforces Beta Round #71 | 8 | |

975 | Tourist | Codeforces | All-Ukrainian School Olympiad in Informatics | 8 | |

976 | Fibonacci army | Codeforces | Unknown Language Round #2 | 8 | |

977 | Petya and Post | Codeforces | Codeforces Beta Round #61 (Div. 2) | 8 | |

978 | Sweets Game | Codeforces | Codeforces Beta Round #59 (Div. 2) | 8 | |

979 | Dead Ends | Codeforces | Codeforces Beta Round #49 (Div. 2) | 8 | |

980 | Bombing | Codeforces | Codeforces Beta Round #47 | 8 | |

981 | Common ancestor | Codeforces | Codeforces Beta Round #46 (Div. 2) | 8 | |

982 | What Has Dirichlet Got to Do with That? | Codeforces | School Team Contest #1 (Winter Computer School 2010/11) | 8 | |

983 | Don't fear, DravDe is kind | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 8 | |

984 | Bath Queue | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 8 | |

985 | Broken robot | Codeforces | Codeforces Beta Round #24 | 8 | |

986 | Tree | Codeforces | Codeforces Beta Round #23 | 8 | |

987 | Flag 2 | Codeforces | Codeforces Beta Round #18 (Div. 2 Only) | 8 | |

988 | Balance | Codeforces | Codeforces Beta Round #17 | 8 | |

989 | Beads | Codeforces | Codeforces Beta Round #8 | 8 | |

990 | Defining Macros | Codeforces | Codeforces Beta Round #7 | 8 | |

991 | Yekaterinburg Subway | Timus | 8 | ||

992 | Somali Pirates | Timus | 8 | ||

993 | Frequent Flyer Card | Timus | 8 | ||

994 | Inventory | UVA | 8 | ||

995 | One-Based Arithmetic | Codeforces | Testing Round #10 | 8 | |

996 | 2048 | Codeforces | Coder-Strike 2014 - Round 2 | 8 | |

997 | Scheme | Codeforces | Codeforces Beta Round #22 (Div. 2 Only) | 8 | |

998 | e-Government | Codeforces | VK Cup 2012 Round 2 | 8 | |

999 | The Chocolate Spree | Codeforces | Manthan, Codefest 16 | 8 | |

1000 | Preorder Test | Codeforces | 8VC Venture Cup 2016 - Final Round | 8 | |

1001 | Wilbur and Trees | Codeforces | Codeforces Round #331 (Div. 2) | 8 | |

1002 | Zublicanes and Mumocrates | Codeforces | Codeforces Round #322 (Div. 2) | 8 | |

1003 | LCS Again | Codeforces | Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] | 8 | |

1004 | Flights for Regular Customers | Codeforces | Codeforces Round #319 (Div. 1) | 8 | |

1005 | Mausoleum | Codeforces | Codeforces Round #Pi (Div. 2) | 8 | |

1006 | Drazil and Morning Exercise | Codeforces | Codeforces Round #292 (Div. 1) | 8 | |

1007 | Inversions problem | Codeforces | Rockethon 2015 | 8 | |

1008 | Progress Monitoring | Codeforces | Codeforces Round #289 (Div. 2, ACM ICPC Rules) | 8 | |

1009 | Birthday | Codeforces | Codeforces Round #282 (Div. 1) | 8 | |

1010 | Helping People | Codeforces | Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) | 8 | |

1011 | Game with Strings | Codeforces | Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) | 8 | |

1012 | Parcels | Codeforces | Codeforces Round #274 (Div. 1) | 8 | |

1013 | Alex and Complicated Task | Codeforces | Codeforces Round #267 (Div. 2) | 8 | |

1014 | World of Darkraft - 2 | Codeforces | Codeforces Round #265 (Div. 1) | 8 | |

1015 | Sereja and Sets | Codeforces | Codeforces Round #243 (Div. 1) | 8 | |

1016 | Biathlon Track | Codeforces | Codeforces Round #242 (Div. 2) | 8 | |

1017 | Tower of Hanoi | Codeforces | Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) | 8 | |

1018 | Diverse Substrings | Codeforces | Testing Round #9 | 8 | |

1019 | Bear and Floodlight | Codeforces | Codeforces Round #226 (Div. 2) | 8 | |

1020 | Vowels | Codeforces | Codeforces Round #225 (Div. 1) | 8 | |

1021 | Sereja and Intervals | Codeforces | Codeforces Round #215 (Div. 1) | 8 | |

1022 | Bags and Coins | Codeforces | Codeforces Round #207 (Div. 1) | 8 | |

1023 | Antichain | Codeforces | Codeforces Round #205 (Div. 2) | 8 | |

1024 | Jeff and Brackets | Codeforces | Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) | 8 | |

1025 | Turtles | Codeforces | Codeforces Round #202 (Div. 1) | 8 | |

1026 | Xenia and Dominoes | Codeforces | Codeforces Round #199 (Div. 2) | 8 | |

1027 | Painting Square | Codeforces | Codeforces Round #181 (Div. 2) | 8 | |

1028 | Greg and Caves | Codeforces | Codeforces Round #179 (Div. 1) | 8 | |

1029 | Shaass the Great | Codeforces | Codeforces Round #178 (Div. 2) | 8 | |

1030 | Positions in Permutations | Codeforces | Codeforces Round #175 (Div. 2) | 8 | |

1031 | Cows and Cool Sequences | Codeforces | Codeforces Round #174 (Div. 1) | 8 | |

1032 | The Minimum Number of Variables | Codeforces | Codeforces Round #171 (Div. 2) | 8 | |

1033 | Maxim and Increasing Subsequence | Codeforces | Codeforces Round #160 (Div. 1) | 8 | |

1034 | Petya and Coloring | Codeforces | Codeforces Beta Round #85 (Div. 1 Only) | 8 | |

1035 | Triangles | Codeforces | Codeforces Beta Round #13 | 8 | |

1036 | The Child and Polygon | Codeforces | Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) | 8 | |

1037 | Roads in Yusland | Codeforces | Codeforces Round #352 (Div. 1) | 8 | |

1038 | Vanya and Balloons | Codeforces | Codeforces Round #355 (Div. 2) | 8 | |

1039 | Two Melodies | Codeforces | Educational Codeforces Round 22 | 8 | |

1040 | Ostap and Tree | Codeforces | Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) | 8 | |

1041 | Michael and Charging Stations | Codeforces | Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) | 8 | |

1042 | Find a car | Codeforces | Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) | 8 | |

1043 | Gosha is hunting | Codeforces | Codeforces Round #381 (Div. 1) | 8 | |

1044 | An unavoidable detour for home | Codeforces | Codeforces Round #418 (Div. 2) | 8 | |

1045 | Mishka and Divisors | Codeforces | Codeforces Round #365 (Div. 2) | 8 | |

1046 | E-The dynamic programming problem2 | TJU | 8 | ||

1047 | Liars and Serge | Codeforces | Codeforces Round #156 (Div. 1) | 9 | |

1048 | Dormitory | Codeforces | Codeforces Round #155 (Div. 2) | 9 | |

1049 | Donkey and Stars | Codeforces | Codeforces Round #152 (Div. 1) | 9 | |

1050 | Piglet's Birthday | Codeforces | Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) | 9 | |

1051 | Meeting Her | Codeforces | Codeforces Round #148 (Div. 1) | 9 | |

1052 | Quick Tortoise | Codeforces | Codeforces Round #144 (Div. 1) | 9 | |

1053 | Little Elephant and Triangle | Codeforces | Codeforces Round #136 (Div. 1) | 9 | |

1054 | Formurosa | Codeforces | Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) | 9 | |

1055 | Cowboys | Codeforces | VK Cup 2012 Finals (unofficial online-version) | 9 | |

1056 | Little Elephant and Retro Strings | Codeforces | Codeforces Round #129 (Div. 1) | 9 | |

1057 | Brand New Problem | Codeforces | Codeforces Round #127 (Div. 1) | 9 | |

1058 | T-shirt | Codeforces | Croc Champ 2012 - Final | 9 | |

1059 | Hyper String | Codeforces | Croc Champ 2012 - Round 2 | 9 | |

1060 | Power Defence | Codeforces | Codeforces Round #115 | 9 | |

1061 | Plane of Tanks: Duel | Codeforces | Codeforces Round #115 | 9 | |

1062 | Shoe Store | Codeforces | Codeforces Round #113 (Div. 2) | 9 | |

1063 | Garden | Codeforces | Codeforces Round #108 (Div. 2) | 9 | |

1064 | Mission Impassable | Codeforces | Codeforces Round #107 (Div. 1) | 9 | |

1065 | World of Darkraft | Codeforces | Codeforces Beta Round #99 (Div. 1) | 9 | |

1066 | Unambiguous Arithmetic Expression | Codeforces | Codeforces Beta Round #87 (Div. 1 Only) | 9 | |

1067 | Crime Management | Codeforces | Codeforces Beta Round #83 (Div. 1 Only) | 9 | |

1068 | Arrangement | Codeforces | Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) | 9 | |

1069 | Candies and Stones | Codeforces | Codeforces Beta Round #79 (Div. 1 Only) | 9 | |

1070 | Horse Races | Codeforces | Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) | 9 | |

1071 | Lostborn | Codeforces | Codeforces Beta Round #76 (Div. 1 Only) | 9 | |

1072 | Flags | Codeforces | Codeforces Beta Round #76 (Div. 1 Only) | 9 | |

1073 | Two Subsequences | Codeforces | Codeforces Beta Round #72 (Div. 1 Only) | 9 | |

1074 | Pairs | Codeforces | Yandex.Algorithm Open 2011 Qualification 1 | 9 | |

1075 | Domino Carpet | Codeforces | Codeforces Beta Round #69 (Div. 1 Only) | 9 | |

1076 | Hanger | Codeforces | Codeforces Beta Round #68 | 9 | |

1077 | Nuclear Fusion | Codeforces | Codeforces Beta Round #65 (Div. 2) | 9 | |

1078 | Information Reform | Codeforces | Codeforces Beta Round #64 | 9 | |

1079 | Half-decay tree | Codeforces | Codeforces Beta Round #62 | 9 | |

1080 | Sequence of Balls | Codeforces | Manthan 2011 | 9 | |

1081 | Journey | Codeforces | Codeforces Beta Round #53 | 9 | |

1082 | Writing a Song | Codeforces | Codeforces Beta Round #50 | 9 | |

1083 | Caterpillar | Codeforces | Codeforces Beta Round #48 | 9 | |

1084 | Ivan the Fool VS Gorynych the Dragon | Codeforces | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) | 9 | |

1085 | Moon Craters | Codeforces | School Team Contest #1 (Winter Computer School 2010/11) | 9 | |

1086 | Smart Boy | Codeforces | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) | 9 | |

1087 | Lesson Timetable | Codeforces | Codeforces Beta Round #37 | 9 | |

1088 | Triangles | Codeforces | Codeforces Beta Round #15 | 9 | |

1089 | Faryuks | Timus | 9 | ||

1090 | Steaks on Board | Timus | 9 | ||

1091 | Candy Store | Live Archive | 2012 | North America - Southeast USA | 9 |

1092 | StackingBoxes | TopCoder | SRM 261 - Div1 hard] (7995) | 9 | |

1093 | And Yet Another Bracket Sequence | Codeforces | VK Cup 2015 - Round 1 | 9 | |

1094 | Four Divisors | Codeforces | Educational Codeforces Round 12 | 9 | |

1095 | Transforming Sequence | Codeforces | AIM Tech Round (Div. 1) | 9 | |

1096 | A Museum Robbery | Codeforces | Codeforces Round #333 (Div. 1) | 9 | |

1097 | Sandy and Nuts | Codeforces | Codeforces Round #332 (Div. 2) | 9 | |

1098 | Wilbur and Strings | Codeforces | Codeforces Round #331 (Div. 2) | 9 | |

1099 | Strange Calculation and Cats | Codeforces | Codeforces Round #329 (Div. 2) | 9 | |

1100 | Polycarp's Masterpiece | Codeforces | 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) | 9 | |

1101 | Bear and Cavalry | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) | 9 | |

1102 | Gerald and Path | Codeforces | Codeforces Round #313 (Div. 1) | 9 | |

1103 | Superhero's Job | Codeforces | VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) | 9 | |

1104 | Tavas in Kansas | Codeforces | Codeforces Round #299 (Div. 1) | 9 | |

1105 | Simplified Nonogram | Codeforces | Codeforces Round #298 (Div. 2) | 9 | |

1106 | Pasha and Pipe | Codeforces | Codeforces Round #293 (Div. 2) | 9 | |

1107 | Subarray Cuts | Codeforces | Rockethon 2015 | 9 | |

1108 | Subarray Cuts | Codeforces | Rockethon 2015 | 9 | |

1109 | Fox And Travelling | Codeforces | Codeforces Round #290 (Div. 1) | 9 | |

1110 | New Year Shopping | Codeforces | Good Bye 2014 | 9 | |

1111 | Stairs and Lines | Codeforces | Codeforces Round #284 (Div. 1) | 9 | |

1112 | Random Function and Tree | Codeforces | Codeforces Round #275 (Div. 1) | 9 | |

1113 | Dreamoon and Binary | Codeforces | Codeforces Round #272 (Div. 1) | 9 | |

1114 | Little Pony and Elements of Harmony | Codeforces | Codeforces Round #259 (Div. 1) | 9 | |

1115 | Valera and Number | Codeforces | Codeforces Round #252 (Div. 2) | 9 | |

1116 | Berland Federalization | Codeforces | Testing Round #10 | 9 | |

1117 | Pudding Monsters | Codeforces | Zepto Code Rush 2014 | 9 | |

1118 | Tachibana Kanade's Tofu | Codeforces | Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) | 9 | |

1119 | Largest Submatrix 3 | Codeforces | Codeforces Round #239 (Div. 1) | 9 | |

1120 | Game with Points | Codeforces | Testing Round #9 | 9 | |

1121 | Ksenia and Combinatorics | Codeforces | Codeforces Round #224 (Div. 2) | 9 | |

1122 | Red and Black Tree | Codeforces | Codeforces Round #221 (Div. 1) | 9 | |

1123 | Xenia and String Problem | Codeforces | Codeforces Round #207 (Div. 1) | 9 | |

1124 | Transferring Pyramid | Codeforces | Codeforces Round #206 (Div. 1) | 9 | |

1125 | Game with Strings | Codeforces | Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) | 9 | |

1126 | Pilgrims | Codeforces | Codeforces Round #202 (Div. 1) | 9 | |

1127 | Rectangles and Square | Codeforces | MemSQL start[c]up Round 2 - online version | 9 | |

1128 | Binary Key | Codeforces | Codeforces Round #193 (Div. 2) | 9 | |

1129 | The Great Julya Calendar | Codeforces | ABBYY Cup 3.0 - Finals (online version) | 9 | |

1130 | The Great Julya Calendar | Codeforces | ABBYY Cup 3.0 - Finals (online version) | 9 | |

1131 | Ciel and Flipboard | Codeforces | Codeforces Round #190 (Div. 1) | 9 | |

1132 | PE Lesson | Codeforces | ABBYY Cup 3.0 | 9 | |

1133 | PE Lesson | Codeforces | ABBYY Cup 3.0 | 9 | |

1134 | PE Lesson | Codeforces | ABBYY Cup 3.0 | 9 | |

1135 | Sereja and Squares | Codeforces | Codeforces Round #187 (Div. 1) | 9 | |

1136 | Yaroslav and Arrangements | Codeforces | Codeforces Round #182 (Div. 1) | 9 | |

1137 | Polo the Penguin and Lucky Numbers | Codeforces | Codeforces Round #177 (Div. 1) | 9 | |

1138 | Google Code Jam | Codeforces | Codeforces Round #170 (Div. 1) | 9 | |

1139 | Dima and Game | Codeforces | Codeforces Round #167 (Div. 1) | 9 | |

1140 | Dima and Figure | Codeforces | Codeforces Round #167 (Div. 1) | 9 | |

1141 | Maximum Waterfall | Codeforces | Codeforces Round #165 (Div. 1) | 9 | |

1142 | Wall Bars | Codeforces | Codeforces Round #164 (Div. 2) | 9 | |

1143 | Roadside Trees | Codeforces | Codeforces Round #162 (Div. 1) | 9 | |

1144 | Colorful Stones | Codeforces | Codeforces Round #162 (Div. 1) | 9 | |

1145 | Rhombus | Codeforces | Codeforces Round #161 (Div. 2) | 9 | |

1146 | Maxim and Calculator | Codeforces | Codeforces Round #160 (Div. 1) | 9 | |

1147 | Representative Sampling | Codeforces | ABBYY Cup 2.0 - Hard | 9 | |

1148 | Maze | Codeforces | Codeforces Beta Round #92 (Div. 1 Only) | 9 | |

1149 | Maximum Longest Increasing Subsequence | CodeChef | 9 | ||

1150 | Research Rover | Codeforces | Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined) | 9 | |

1151 | Singer House | Codeforces | Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) | 9 | |

1152 | Hitchhiking in the Baltic States | Codeforces | Codeforces Round #415 (Div. 1) | 9 | |

1153 | Black Widow | Codeforces | Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) | 9 | |

1154 | Road to Home | Codeforces | Codeforces Round #374 (Div. 2) | 9 | |

1155 | DFS | Codeforces | Lyft Level 5 Challenge 2018 - Final Round | 9 | |

1156 | Fibonacci String Subsequences | Codeforces | Educational Codeforces Round 39 (Rated for Div. 2) | 9 | |

1157 | Tree and Table | Codeforces | Codeforces Round #153 (Div. 1) | 10 | |

1158 | Cubes | Codeforces | Codeforces Round #150 (Div. 1) | 10 | |

1159 | Doe Graphs | Codeforces | Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) | 10 | |

1160 | Clever Fat Rat | Codeforces | Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) | 10 | |

1161 | Mrs. Hudson's Pancakes | Codeforces | Codeforces Round #110 (Div. 1) | 10 | |

1162 | Hellish Constraints | Codeforces | Codeforces Beta Round #99 (Div. 1) | 10 | |

1163 | Help Shrek and Donkey | Codeforces | Codeforces Beta Round #78 (Div. 1 Only) | 10 | |

1164 | Mutation | Codeforces | All-Ukrainian School Olympiad in Informatics | 10 | |

1165 | World Evil | Codeforces | Codeforces Beta Round #58 | 10 | |

1166 | Expression | Codeforces | Codeforces Beta Round #54 (Div. 2) | 10 | |

1167 | The Great Marathon | Codeforces | 10 | ||

1168 | Dynamic Assignment Problem | SPOJ | 10 | ||

1169 | Dynamic Programming | A2 Online Judge | 10 | ||

1170 | Geometry | Live Archive | 2005 | Asia - Kolkata | 10 |

1171 | To Hack or not to Hack | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 10 | |

1172 | Combining Slimes | Codeforces | Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) | 10 | |

1173 | Puzzle Lover | Codeforces | Codeforces Round #339 (Div. 1) | 10 | |

1174 | Simba on the Circle | Codeforces | Educational Codeforces Round 4 | 10 | |

1175 | Digits of Number Pi | Codeforces | Codeforces Round #325 (Div. 1) | 10 | |

1176 | Boolean Function | Codeforces | Codeforces Round #323 (Div. 1) | 10 | |

1177 | Number of Binominal Coefficients | Codeforces | Codeforces Round #323 (Div. 1) | 10 | |

1178 | Kojiro and Furrari | Codeforces | Codeforces Round #322 (Div. 2) | 10 | |

1179 | Longest Increasing Subsequence | Codeforces | Codeforces Round #315 (Div. 1) | 10 | |

1180 | Kyoya and Train | Codeforces | Codeforces Round #309 (Div. 1) | 10 | |

1181 | Inversions problem | Codeforces | Rockethon 2015 | 10 | |

1182 | Subsequences Return | Codeforces | Codeforces Round #283 (Div. 1) | 10 | |

1183 | Permanent | Codeforces | Codeforces Round #268 (Div. 1) | 10 | |

1184 | An easy problem about trees | Codeforces | MemSQL Start[c]UP 2.0 - Round 2 | 10 | |

1185 | Jzzhu and Squares | Codeforces | Codeforces Round #257 (Div. 1) | 10 | |

1186 | Banners | Codeforces | Zepto Code Rush 2014 | 10 | |

1187 | Colored Jenga | Codeforces | Codeforces Round #242 (Div. 2) | 10 | |

1188 | Stock Trading | Codeforces | Rockethon 2014 | 10 | |

1189 | New Year Cactus | Codeforces | Good Bye 2013 | 10 | |

1190 | Cookie Clicker | Codeforces | Codeforces Round #222 (Div. 1) | 10 | |

1191 | Summer Reading | Codeforces | Codeforces Round #217 (Div. 2) | 10 | |

1192 | Vasily the Bear and Painting Square | Codeforces | Codeforces Round #195 (Div. 2) | 10 | |

1193 | Buy One, Get One Free | Codeforces | MemSQL start[c]up Round 2 - online version | 10 | |

1194 | Counting Skyscrapers | Codeforces | MemSQL start[c]up Round 2 - online version | 10 | |

1195 | Deja Vu | Codeforces | ABBYY Cup 3.0 - Finals (online version) | 10 | |

1196 | Random Ranking | Codeforces | Codeforces Round #183 (Div. 1) | 10 | |

1197 | Sequence Transformation | Codeforces | Codeforces Round #172 (Div. 1) | 10 | |

1198 | Galaxy Union | Codeforces | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) | 10 | |

1199 | School | Codeforces | School Team Contest #3 (Winter Computer School 2010/11) | 10 | |

1200 | Forward, march! | Codeforces | Codeforces Beta Round #11 | 10 | |

1201 | #dynamic-programming (168)</span> | SPOJ | 10 | ||

1202 | Longest Subsequence | Live Archive | 2004 | Asia - Manila | 10 |

1203 | Selling Numbers | Codeforces | Codeforces Round #402 (Div. 1) | 10 | |

1204 | Shake It! | Codeforces | Codeforces Round #431 (Div. 1) | 10 | |

1205 | Sloth | Codeforces | Codeforces Round #446 (Div. 1) | 10 | |

1206 | Mod Mod Mod | Codeforces | Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) | 10 | |

1207 | Numbers on the blackboard | Codeforces | Codeforces Round #443 (Div. 1) | 10 | |

1208 | Caramel Clouds | Codeforces | Codeforces Round #426 (Div. 1) | 10 | |

1209 | Days of Floral Colours | Codeforces | Codeforces Round #431 (Div. 1) | 10 | |

1210 | Ada and Zoo | SPOJ | 10 | ||

1211 | Dynamic Shortest Path | Codeforces | AIM Tech Round 4 (Div. 1) | 10 |