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

1 | The Benefactor | SPOJ | 1 | ||

2 | Bitmap | SPOJ | 1 | ||

3 | Lucius Dungeon | SPOJ | 1 | ||

4 | The Cats and the Mouse | SPOJ | 1 | ||

5 | Key Task | SPOJ | 1 | ||

6 | 106 miles to Chicago | SPOJ | 1 | ||

7 | Cleaning Robot | SPOJ | 1 | ||

8 | Highways | SPOJ | 1 | ||

9 | Invitation Cards | SPOJ | 1 | ||

10 | Labyrinth | SPOJ | 1 | ||

11 | Mice and Maze | SPOJ | 1 | ||

12 | Laser Phones | SPOJ | 1 | ||

13 | Ones and zeros | SPOJ | 1 | ||

14 | Pouring water | SPOJ | 1 | ||

15 | Prime Path | SPOJ | 1 | ||

16 | Vertex Cover | SPOJ | 1 | ||

17 | Is it a tree | SPOJ | 1 | ||

18 | Longest path in a tree | SPOJ | 1 | ||

19 | Almost Shortest Path | SPOJ | 1 | ||

20 | Shopping | SPOJ | 1 | ||

21 | The Shortest Path | SPOJ | 1 | ||

22 | Tic-Tac-Toe ( I ) | SPOJ | 1 | ||

23 | Tic-Tac-Toe ( II ) | SPOJ | 1 | ||

24 | A Bug’s Life | SPOJ | 1 | ||

25 | Traffic Network | SPOJ | 1 | ||

26 | Making Jumps | SPOJ | 1 | ||

27 | Number Maze | UVA | 1 | ||

28 | Lift Hopping | UVA | 1 | ||

29 | Sending email | UVA | 1 | ||

30 | Knight Moves | UVA | 1 | ||

31 | Two Gangsters | Timus | 1 | ||

32 | Ice Skating | Codeforces | Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) | 1 | |

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

34 | Dijkstra? | Codeforces | Codeforces Alpha Round #20 (Codeforces format) | 1 | |

35 | Shortest path of the king | Codeforces | Codeforces Beta Round #3 | 1 | |

36 | Cobbled streets | SPOJ | 1 | ||

37 | You want what filled? | UVA | 1 | ||

38 | Word Transformation | UVA | 1 | ||

39 | Page Hopping | UVA | 1 | ||

40 | MPI Maelstrom | UVA | 1 | ||

41 | Continents | UVA | 1 | ||

42 | prayatna PR | SPOJ | 1 | ||

43 | ABC Path | SPOJ | 1 | ||

44 | Marble Game | Live Archive | 2007 | World Finals - Tokyo | 1 |

45 | A Node Too Far | UVA | 1 | ||

46 | Dungeon Master | UVA | 1 | ||

47 | Risk | UVA | 1 | ||

48 | We Ship Cheap | UVA | 1 | ||

49 | Spreading The News | UVA | 1 | ||

50 | All Roads Lead Where? | UVA | 1 | ||

51 | Playing with Wheels | UVA | 1 | ||

52 | Bombs! NO they are Mines!! | UVA | 1 | ||

53 | Oil Deposits | UVA | 1 | ||

54 | Battleships | UVA | 1 | ||

55 | VALIDATE THE MAZE | SPOJ | 1 | ||

56 | COSTLY CHESS | SPOJ | 1 | ||

57 | Sheep | SPOJ | 1 | ||

58 | Lazy Jumping Frog | Live Archive | 2006 | Latin America - South America | 1 |

59 | Water among Cubes | SPOJ | 1 | ||

60 | Slick | SPOJ | 1 | ||

61 | Roads | SPOJ | 1 | ||

62 | Minimum Knight moves !!! | SPOJ | 1 | ||

63 | Labyrinth | TJU | 1 | ||

64 | Easy Dijkstra Problem | SPOJ | 1 | ||

65 | Unique Path | Live Archive | 2012 | Asia - Jakarta | 1 |

66 | Fishmonger | SPOJ | 1 | ||

67 | ALL IZZ WELL | SPOJ | 1 | ||

68 | Network | UVA | 1 | ||

69 | Following Orders | UVA | 1 | ||

70 | Til the Cows Come Home | PKU | 1 | ||

71 | Chef and Digit Jumps | CodeChef | 1 | ||

72 | Sticker Collector Robot | UVA | 1 | ||

73 | Pizzas | A2 Online Judge | 1 | ||

74 | Two Buttons | Codeforces | Codeforces Round #295 (Div. 2) | 1 | |

75 | Wetlands of Florida | UVA | 1 | ||

76 | Rank the Languages | UVA | 1 | ||

77 | Learning Languages | Codeforces | Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) | 1 | |

78 | Vertex | UVA | 1 | ||

79 | Herding | SPOJ | 1 | ||

80 | Chop Ahoy! Revisited! | SPOJ | 1 | ||

81 | Kefa and Park | Codeforces | Codeforces Round #321 (Div. 2) | 1 | |

82 | Soldier and Cards | Codeforces | Codeforces Round #304 (Div. 2) | 1 | |

83 | New Year Transportation | Codeforces | Good Bye 2014 | 1 | |

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

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

86 | Maze | Codeforces | Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) | 1 | |

87 | Queue at the School | Codeforces | Codeforces Round #163 (Div. 2) | 1 | |

88 | Brackets | SPOJ | 1 | ||

89 | NP-Hard Problem | Codeforces | Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) | 1 | |

90 | Lost in Localization | Timus | 1 | ||

91 | Eniya | Timus | 1 | ||

92 | Reverse Root | Timus | 1 | ||

93 | A+B Problem | Timus | 1 | ||

94 | Bicycle Codes | Timus | 1 | ||

95 | Nadia Team | A2 Online Judge | 1 | ||

96 | Word Capitalization | Codeforces | Codeforces Round #172 (Div. 2) | 1 | |

97 | Mutant Flatworld Explorers | UVA | 1 | ||

98 | Robot Motion | UVA | 1 | ||

99 | Graph Connectivity | UVA | 1 | ||

100 | Marcus | UVA | 1 | ||

101 | The Seasonal War | UVA | 1 | ||

102 | Friends | UVA | 1 | ||

103 | Freckles | UVA | 1 | ||

104 | Theatre Square | Codeforces | Codeforces Beta Round #1 | 1 | |

105 | Testing the CATCHER | UVA | 1 | ||

106 | Intrepid climber | Live Archive | 2014 | Latin America | 1 |

107 | Brackets II | SPOJ | 2 | ||

108 | Changing Maze | SPOJ | 2 | ||

109 | Manhattan | SPOJ | 2 | ||

110 | GONDOR | SPOJ | 2 | ||

111 | Lucky Numbers | SPOJ | 2 | ||

112 | MELE3 | SPOJ | 2 | ||

113 | Slash Maze | UVA | 2 | ||

114 | Equidivisions | SPOJ | 2 | ||

115 | Treeramids | SPOJ | 2 | ||

116 | Interesting number | SPOJ | 2 | ||

117 | Fire Station | UVA | 2 | ||

118 | Fill | UVA | 2 | ||

119 | Babel | UVA | 2 | ||

120 | Jugs | UVA | 2 | ||

121 | Meeting Prof. Miguel... | UVA | 2 | ||

122 | Claw Decomposition | UVA | 2 | ||

123 | Come and Go | UVA | 2 | ||

124 | Commandos | UVA | 2 | ||

125 | Dominator | UVA | 2 | ||

126 | Finding Nemo | Live Archive | 2004 | Asia - Beijing | 2 |

127 | Grid Colouring | UVA | 2 | ||

128 | Robot | UVA | 2 | ||

129 | Shipping Routes | UVA | 2 | ||

130 | The Party, Part I | UVA | 2 | ||

131 | Runner Pawns | Live Archive | 2003 | Latin America - South America | 2 |

132 | Meeting For Party | SPOJ | 2 | ||

133 | The longest athletic track | TJU | 2 | ||

134 | Dungeon Master | TJU | 2 | ||

135 | Risk | TJU | 2 | ||

136 | Step out of maze | TJU | 2 | ||

137 | Game Show Math | UVA | 2 | ||

138 | Knights in FEN | UVA | 2 | ||

139 | Erdos Numbers | UVA | 2 | ||

140 | Unlock the Lock | UVA | 2 | ||

141 | Fire! | UVA | 2 | ||

142 | Maxim and Progressions | CodeChef | 2 | ||

143 | Dominos 2 | UVA | 2 | ||

144 | Counting Cells in a Blob | UVA | 2 | ||

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

146 | DFSr - Depth Hierarchy | URI | 2 | ||

147 | Escape from Jail | SPOJ | 2 | ||

148 | Bear and Three Musketeers | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) | 2 | |

149 | Chef and Reversing | CodeChef | 2 | ||

150 | The Two Routes | Codeforces | Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) | 2 | |

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

152 | Fox And Names | Codeforces | Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) | 2 | |

153 | Fox And Two Dots | Codeforces | Codeforces Round #290 (Div. 2) | 2 | |

154 | 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 | |

155 | New Year Permutation | Codeforces | Good Bye 2014 | 2 | |

156 | Strongly Connected City | Codeforces | Bayan 2015 Contest Warm Up | 2 | |

157 | DZY Loves Chemistry | Codeforces | Codeforces Round #254 (Div. 2) | 2 | |

158 | Valera and Tubes | Codeforces | Codeforces Round #252 (Div. 2) | 2 | |

159 | Xor-tree | Codeforces | Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) | 2 | |

160 | Checkposts | Codeforces | Codeforces Round #244 (Div. 2) | 2 | |

161 | Dijkstra | SPOJ Poland | 2 | ||

162 | KATHTHI | SPOJ | 2 | ||

163 | The Alphabet Sticker | A2 Online Judge | 2 | ||

164 | The Prime conjecture | SPOJ | 2 | ||

165 | The Great Coach, Fegla | A2 Online Judge | 2 | ||

166 | Mice and Maze | UVA | 2 | ||

167 | Maze Traversal | UVA | 2 | ||

168 | Forwarding Emails | UVA | 2 | ||

169 | Andryusha and Colored Balloons | Codeforces | ?????????? 2017 - ????? (?????? ??? ??????-??????????) | 2 | |

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

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

172 | 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 | |

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

174 | Tobo or not Tobo | SPOJ | 3 | ||

175 | Countdown | SPOJ | 3 | ||

176 | Chase | SPOJ | 3 | ||

177 | Cijevi | SPOJ | 3 | ||

178 | Galou is back! | SPOJ | 3 | ||

179 | Wandering Queen | SPOJ | 3 | ||

180 | Strings | SPOJ | 3 | ||

181 | Closest Number | SPOJ | 3 | ||

182 | Adventure of Super Mario | UVA | 3 | ||

183 | Travel in Desert | UVA | 3 | ||

184 | Walk Through the Forest | UVA | 3 | ||

185 | Full Tank? | UVA | 3 | ||

186 | Airport Express | UVA | 3 | ||

187 | Hotel booking | UVA | 3 | ||

188 | The Tree Root | UVA | 3 | ||

189 | Railroads | UVA | 3 | ||

190 | Tree Reconstruction | UVA | 3 | ||

191 | Colorful Graph | Codeforces | Codeforces Round #151 (Div. 2) | 3 | |

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

193 | Cthulhu | Codeforces | Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) | 3 | |

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

195 | The New Villa | UVA | 3 | ||

196 | Ping-Pong (Easy Version) | Codeforces | Codeforces Round #189 (Div. 2) | 3 | |

197 | Fire! Fire!! Fire!!! | UVA | 3 | ||

198 | Amazing Maze | SPOJ | 3 | ||

199 | The PATH | UVA | 3 | ||

200 | Fox Dividing Cheese | Codeforces | Codeforces Round #218 (Div. 2) | 3 | |

201 | Monkeys in a Regular Forest | UVA | 3 | ||

202 | The mysterious X network | UVA | 3 | ||

203 | THE WEIRD STAIRCASE | SPOJ | 3 | ||

204 | Basic wall maze | UVA | 3 | ||

205 | Subway | UVA | 3 | ||

206 | Mall Mania | UVA | 3 | ||

207 | The Orc Attack | UVA | 3 | ||

208 | New to Bangladesh? | UVA | 3 | ||

209 | Rough Roads | UVA | 3 | ||

210 | Path of the righteous man | SPOJ | 3 | ||

211 | Ice Cave | Codeforces | Codeforces Round #301 (Div. 2) | 3 | |

212 | Code | SPOJ | 3 | ||

213 | Highest Paid Toll | UVA | 3 | ||

214 | A short vacation in Disneyland | SPOJ | 3 | ||

215 | Almost Union-Find | UVA | 3 | ||

216 | New Reform | Codeforces | Codeforces Round #346 (Div. 2) | 3 | |

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

218 | Igor In the Museum | Codeforces | Educational Codeforces Round 1 | 3 | |

219 | Cleaner Robot | Codeforces | 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) | 3 | |

220 | Om Nom and Dark Park | Codeforces | ZeptoLab Code Rush 2015 | 3 | |

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

222 | Unbearable Controversy of Being | Codeforces | Codeforces Round #277.5 (Div. 2) | 3 | |

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

224 | Valera and Elections | Codeforces | Codeforces Round #216 (Div. 2) | 3 | |

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

226 | Biridian Forest | Codeforces | Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) | 3 | |

227 | Coach | Codeforces | Codeforces Round #181 (Div. 2) | 3 | |

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

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

230 | Students and Shoelaces | Codeforces | Codeforces Beta Round #94 (Div. 2 Only) | 3 | |

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

232 | Wedding of Sultan | UVA | 3 | ||

233 | From Dusk Till Dawn | UVA | 3 | ||

234 | Arpa's loud Owf and Mehrdad's evil plan | Codeforces | Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) | 3 | |

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

236 | Hongcow Builds A Nation | Codeforces | Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) | 3 | |

237 | Mike and Shortcuts | Codeforces | Codeforces Round #361 (Div. 2) | 3 | |

238 | Eternal Truths | UVA | 3 | ||

239 | Ocean Currents | UVA | 4 | ||

240 | Round and Round Maze | UVA | 4 | ||

241 | Always Late | UVA | 4 | ||

242 | Minefield | UVA | 4 | ||

243 | Cactus | UVA | 4 | ||

244 | Undoubtedly Lucky Numbers | Codeforces | Codeforces Round #150 (Div. 2) | 4 | |

245 | King's Path | Codeforces | Codeforces Round #149 (Div. 2) | 4 | |

246 | Planets | Codeforces | Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) | 4 | |

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

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

249 | Quantity of Strings | Codeforces | Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) | 4 | |

250 | Subway | Codeforces | Codeforces Beta Round #95 (Div. 2) | 4 | |

251 | Statues | Codeforces | Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) | 4 | |

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

253 | Serial Time! | Codeforces | Codeforces Beta Round #56 | 4 | |

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

255 | Road Map | Codeforces | Codeforces Beta Round #34 (Div. 2) | 4 | |

256 | Tournament | Codeforces | Codeforces Beta Round #27 (Codeforces format, Div. 2) | 4 | |

257 | Roads not only in Berland | Codeforces | Codeforces Beta Round #25 (Div. 2 Only) | 4 | |

258 | Roads in Berland | Codeforces | Codeforces Beta Round #25 (Div. 2 Only) | 4 | |

259 | Here We Go(relians) Again | SPOJ | 4 | ||

260 | Shopping | UVA | 4 | ||

261 | Happy Valentine Day (Valentine Maze Game) | SPOJ | 4 | ||

262 | Go Game | TJU | 4 | ||

263 | Krochanska is Here! | UVA | 4 | ||

264 | Jzzhu and Cities | Codeforces | Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) | 4 | |

265 | Paths and Trees | Codeforces | Codeforces Round #303 (Div. 2) | 4 | |

266 | The Labyrinth | Codeforces | Educational Codeforces Round 5 | 4 | |

267 | Lomsat gelral | Codeforces | Educational Codeforces Round 2 | 4 | |

268 | Phillip and Trains | Codeforces | Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) | 4 | |

269 | Tree Requests | Codeforces | Codeforces Round #316 (Div. 2) | 4 | |

270 | Destroying Roads | Codeforces | Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) | 4 | |

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

272 | New Year Santa Network | Codeforces | Good Bye 2014 | 4 | |

273 | Design Tutorial: Inverse the Problem | Codeforces | Codeforces Round #270 | 4 | |

274 | Two Sets | Codeforces | Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) | 4 | |

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

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

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

278 | Restore Graph | Codeforces | Codeforces Round #237 (Div. 2) | 4 | |

279 | Propagating tree | Codeforces | Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) | 4 | |

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

281 | Ciel the Commander | Codeforces | Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) | 4 | |

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

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

284 | Dorm Water Supply | Codeforces | Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) | 4 | |

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

286 | Tin Cutter | UVA | 4 | ||

287 | A DP Problem | UVA | 4 | ||

288 | Cheapest way | UVA | 4 | ||

289 | Nephren gives a riddle | Codeforces | Codeforces Round #449 (Div. 1) & Codeforces Round #449 (Div. 2) | 4 | |

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

291 | Alyona and a tree | Codeforces | Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) | 4 | |

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

293 | Directed Roads | Codeforces | Codeforces Round #369 (Div. 2) | 4 | |

294 | Ilya And The Tree | Codeforces | Codeforces Round #430 (Div. 2) | 4 | |

295 | Garland | Codeforces | Codeforces Round #398 (Div. 2) | 4 | |

296 | Chess Knights | A2 Online Judge | 4 | ||

297 | Umnozak | SPOJ | 5 | ||

298 | Speedy Escape | UVA | 5 | ||

299 | Text Editor | Codeforces | Codeforces Round #154 (Div. 2) | 5 | |

300 | Blood Cousins | Codeforces | Codeforces Round #130 (Div. 2) | 5 | |

301 | Jumping on Walls | Codeforces | Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) | 5 | |

302 | Infinite Maze | Codeforces | Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) | 5 | |

303 | Cutting Figure | Codeforces | Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) | 5 | |

304 | STL | Codeforces | Codeforces Round #120 (Div. 2) | 5 | |

305 | Missile Silos | Codeforces | Codeforces Round #103 (Div. 2) | 5 | |

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

307 | Cycle | Codeforces | Codeforces Beta Round #88 | 5 | |

308 | Volleyball | Codeforces | Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) | 5 | |

309 | Square Earth? | Codeforces | Codeforces Beta Round #53 | 5 | |

310 | Mail Stamps | Codeforces | Codeforces Beta Round #29 (Div. 2, Codeforces format) | 5 | |

311 | pSort | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 5 | |

312 | Hierarchy | Codeforces | Codeforces Beta Round #17 | 5 | |

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

314 | Masud Rana | UVA | 5 | ||

315 | Chinese Checkers | UVA | 5 | ||

316 | GRAVITY | SPOJ | 5 | ||

317 | Tutorial BFS | SPOJ | 5 | ||

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

319 | Minimum spanning tree for each edge | Codeforces | Educational Codeforces Round 3 | 5 | |

320 | Moodular Arithmetic | Codeforces | Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) | 5 | |

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

322 | Three States | Codeforces | Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) | 5 | |

323 | Vitaly and Cycle | Codeforces | Codeforces Round #311 (Div. 2) | 5 | |

324 | Inversions problem | Codeforces | Rockethon 2015 | 5 | |

325 | Chocolate | Codeforces | Codeforces Round #279 (Div. 2) | 5 | |

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

327 | Dima and Bacteria | Codeforces | Codeforces Round #234 (Div. 2) | 5 | |

328 | Tree and Queries | Codeforces | Codeforces Round #221 (Div. 1) | 5 | |

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

330 | Water Tree | Codeforces | Codeforces Round #200 (Div. 1) | 5 | |

331 | Block Tower | Codeforces | Codeforces Round #191 (Div. 2) | 5 | |

332 | Yaroslav and Time | Codeforces | Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) | 5 | |

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

334 | Cycle in Graph | Codeforces | Codeforces Round #161 (Div. 2) | 5 | |

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

336 | Kay and Snowflake | Codeforces | Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) | 5 | |

337 | Theseus and labyrinth | Codeforces | Codeforces Round #354 (Div. 2) | 5 | |

338 | Comments | Codeforces | Codeforces Round #387 (Div. 2) | 5 | |

339 | Transmissão de Energia | URI | 5 | ||

340 | MergeSort | TopCoder | SRM 151 - Div1 medium - Div2 hard] (4560) | 5 | |

341 | Kruskal | SPOJ | 5 | ||

342 | Bitwise Formula | Codeforces | Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) | 5 | |

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

344 | Weird journey | Codeforces | Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) | 5 | |

345 | Complete The Graph | Codeforces | Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) | 5 | |

346 | Misha, Grisha and Underground | Codeforces | Codeforces Round #425 (Div. 2) | 5 | |

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

348 | Mahmoud and a Dictionary | Codeforces | Codeforces Round #396 (Div. 2) | 5 | |

349 | Persistent Bookcase | Codeforces | Codeforces Round #368 (Div. 2) | 5 | |

350 | What is for dinner? | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 5 | |

351 | BFS (Binary Fibonacci String) | UVA | 5 | ||

352 | Fixed Partition Contest Management | SPOJ | 6 | ||

353 | Dispute | Codeforces | Codeforces Round #149 (Div. 2) | 6 | |

354 | The Road to Berland is Paved With Good Intentions | Codeforces | Codeforces Round #141 (Div. 2) | 6 | |

355 | Game | Codeforces | Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) | 6 | |

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

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

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

359 | Chamber of Secrets | Codeforces | Croc Champ 2012 - Round 1 | 6 | |

360 | Bertown roads | Codeforces | Codeforces Beta Round #89 (Div. 2) | 6 | |

361 | String Problem | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 6 | |

362 | Ant on the Tree | Codeforces | Codeforces Beta Round #29 (Div. 2, Codeforces format) | 6 | |

363 | Road Rally | Live Archive | 2011 | North America - Mid-Atlantic USA | 6 |

364 | Little Pony and Summer Sun Celebration | Codeforces | Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) | 6 | |

365 | Caisa and Tree | Codeforces | Codeforces Round #264 (Div. 2) | 6 | |

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

367 | Increasing Shortest Path | A2 Online Judge | 6 | ||

368 | Graph Coloring | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 6 | |

369 | Polycarp and Hay | Codeforces | Codeforces Round #346 (Div. 2) | 6 | |

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

371 | Making Genome in Berland | Codeforces | VK Cup 2016 - Qualification Round 2 | 6 | |

372 | Ants in Leaves | Codeforces | Educational Codeforces Round 7 | 6 | |

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

374 | Invariance of Tree | Codeforces | Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) | 6 | |

375 | Love Triangles | Codeforces | Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) | 6 | |

376 | Looksery Party | Codeforces | Looksery Cup 2015 | 6 | |

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

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

379 | Tanya and Password | Codeforces | Codeforces Round #288 (Div. 2) | 6 | |

380 | Mr. Kitayuta's Technology | Codeforces | Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) | 6 | |

381 | Information Graph | Codeforces | Codeforces Round #266 (Div. 2) | 6 | |

382 | Divisors | Codeforces | Codeforces Round #256 (Div. 2) | 6 | |

383 | Giving Awards | Codeforces | Coder-Strike 2014 - Round 1 | 6 | |

384 | Apple Tree | Codeforces | Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) | 6 | |

385 | EKG | Codeforces | ABBYY Cup 3.0 | 6 | |

386 | EKG | Codeforces | ABBYY Cup 3.0 | 6 | |

387 | Sereja and Periods | Codeforces | Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) | 6 | |

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

389 | Party | Codeforces | ABBYY Cup 2.0 - Easy | 6 | |

390 | Party | Codeforces | ABBYY Cup 2.0 - Easy | 6 | |

391 | Ring Road 2 | Codeforces | Codeforces Beta Round #27 (Codeforces format, Div. 2) | 6 | |

392 | World Tour | Codeforces | Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) | 6 | |

393 | Gifts by the List | Codeforces | Codeforces Round #357 (Div. 2) | 6 | |

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

395 | Legacy | Codeforces | Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) | 6 | |

396 | The Great Mixing | Codeforces | Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) | 6 | |

397 | Arpa’s overnight party and Mehrdad’s silent entering | Codeforces | Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) | 6 | |

398 | Vladik and Favorite Game | Codeforces | Codeforces Round #416 (Div. 2) | 6 | |

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

400 | Caravans | Timus | 6 | ||

401 | Segment Tree | SPOJ | 6 | ||

402 | Hex Tile Equations | SPOJ | 7 | ||

403 | Flight Planning | UVA | 7 | ||

404 | DRM | UVA | 7 | ||

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

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

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

408 | Weak Memory | Codeforces | Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) | 7 | |

409 | Variable, or There and Back Again | Codeforces | VK Cup 2012 Round 3 | 7 | |

410 | Edges in MST | Codeforces | Codeforces Round #111 (Div. 2) | 7 | |

411 | Pairs of Numbers | Codeforces | Codeforces Testing Round #3 | 7 | |

412 | General Mobilization | Codeforces | Yandex.Algorithm 2011 Qualification 2 | 7 | |

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

414 | Chessboard Billiard | Codeforces | Codeforces Beta Round #68 | 7 | |

415 | Shortest Path | Codeforces | Codeforces Beta Round #55 (Div. 2) | 7 | |

416 | Knights | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 7 | |

417 | Chocolate | Codeforces | Codeforces Beta Round #31 (Div. 2, Codeforces format) | 7 | |

418 | Fairy | Codeforces | Codeforces Beta Round #19 | 7 | |

419 | Event Dates | Codeforces | School Team Contest #3 (Winter Computer School 2010/11) | 7 | |

420 | Rotate to root | UVA | 7 | ||

421 | Bear and Forgotten Tree 2 | Codeforces | IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) | 7 | |

422 | Pursuit For Artifacts | Codeforces | Educational Codeforces Round 10 | 7 | |

423 | Three-dimensional Turtle Super Computer | Codeforces | VK Cup 2016 - Qualification Round 2 | 7 | |

424 | Road Improvement | Codeforces | VK Cup 2016 - Qualification Round 2 | 7 | |

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

426 | Square Root of Permutation | Codeforces | Educational Codeforces Round 4 | 7 | |

427 | Acyclic Organic Compounds | Codeforces | Codeforces Round #333 (Div. 1) | 7 | |

428 | Tourist Guide | Codeforces | 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) | 7 | |

429 | Bribes | Codeforces | Bubble Cup 8 - Finals [Online Mirror] | 7 | |

430 | Bear and Drawing | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) | 7 | |

431 | President and Roads | Codeforces | Codeforces Round #Pi (Div. 2) | 7 | |

432 | Case of Computer Network | Codeforces | Codeforces Round #310 (Div. 1) | 7 | |

433 | Mike and Fish | Codeforces | Codeforces Round #305 (Div. 1) | 7 | |

434 | Data Center Drama | Codeforces | Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) | 7 | |

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

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

437 | Hill Climbing | Codeforces | Codeforces Round #238 (Div. 1) | 7 | |

438 | Graph Cutting | Codeforces | Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) | 7 | |

439 | Ksenia and Pawns | Codeforces | Codeforces Round #224 (Div. 2) | 7 | |

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

441 | Dima and Trap Graph | Codeforces | Codeforces Round #214 (Div. 2) | 7 | |

442 | Fools and Foolproof Roads | Codeforces | Codeforces Round #212 (Div. 2) | 7 | |

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

444 | Wrong Floyd | Codeforces | Codeforces Round #203 (Div. 2) | 7 | |

445 | Tree-String Problem | Codeforces | Croc Champ 2013 - Qualification Round | 7 | |

446 | Lovely Matrix | Codeforces | Codeforces Round #168 (Div. 1) | 7 | |

447 | Circle of Numbers | Codeforces | Codeforces Round #161 (Div. 2) | 7 | |

448 | Little Elephant and Tree | Codeforces | Codeforces Round #157 (Div. 1) | 7 | |

449 | Snake | Codeforces | Codeforces Round #139 (Div. 2) | 7 | |

450 | Bear and Square Grid | Codeforces | Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) | 7 | |

451 | Peterson Polyglot | Codeforces | Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) | 7 | |

452 | Break Up | Codeforces | Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) | 7 | |

453 | Okabe and City | Codeforces | Codeforces Round #420 (Div. 2) | 7 | |

454 | Colorado Potato Beetle | Codeforces | Codeforces Round #150 (Div. 1) & Codeforces Round #150 (Div. 2) | 8 | |

455 | Flights | Codeforces | Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) | 8 | |

456 | T-decomposition | Codeforces | Codeforces Round #147 (Div. 2) | 8 | |

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

458 | Opening Portals | Codeforces | Codeforces Round #124 (Div. 1) | 8 | |

459 | Cyclic Coloring | Codeforces | Croc Champ 2012 - Final | 8 | |

460 | Archaeology | Codeforces | Croc Champ 2012 - Round 2 | 8 | |

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

462 | Take-off Ramps | Codeforces | Codeforces Round #101 (Div. 2) | 8 | |

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

464 | Petya and Tree | Codeforces | Yandex.Algorithm 2011 Round 1 | 8 | |

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

466 | FreeDiv | Codeforces | Codeforces Beta Round #66 | 8 | |

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

468 | Mushroom Strife | Codeforces | Codeforces Beta Round #56 | 8 | |

469 | Quarrel | Codeforces | Codeforces Beta Round #29 (Div. 2, Codeforces format) | 8 | |

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

471 | Interestring graph and Apples | Codeforces | Codeforces Beta Round #9 (Div. 2 Only) | 8 | |

472 | Graph basics concepts | SPOJ | 8 | ||

473 | Yash And Trees | Codeforces | Manthan, Codefest 16 | 8 | |

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

475 | Kingdom and its Cities | Codeforces | Codeforces Round #339 (Div. 1) | 8 | |

476 | Intergalaxy Trips | Codeforces | Codeforces Round #335 (Div. 1) | 8 | |

477 | Board Game | Codeforces | Codeforces Round #335 (Div. 1) | 8 | |

478 | Run for beer | Codeforces | Bubble Cup 8 - Finals [Online Mirror] | 8 | |

479 | CNF 2 | Codeforces | Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) | 8 | |

480 | Matching Names | Codeforces | VK Cup 2015 - Finals, online mirror | 8 | |

481 | Playing on Graph | Codeforces | VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) | 8 | |

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

483 | Constrained Tree | Codeforces | Rockethon 2015 | 8 | |

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

485 | Tourists | Codeforces | Codeforces Round #278 (Div. 1) | 8 | |

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

487 | Choosing Subtree is Fun | Codeforces | Codeforces Round #219 (Div. 1) | 8 | |

488 | Sereja and Sets | Codeforces | Codeforces Round #215 (Div. 1) | 8 | |

489 | Petya and Pipes | Codeforces | Codeforces Round #212 (Div. 2) | 8 | |

490 | Robot Control | Codeforces | Codeforces Round #201 (Div. 1) | 8 | |

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

492 | Three Swaps | Codeforces | Codeforces Round #197 (Div. 2) | 8 | |

493 | Balance | Codeforces | Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) | 8 | |

494 | Polo the Penguin and Trees | Codeforces | Codeforces Round #177 (Div. 1) | 8 | |

495 | Dominoes | Codeforces | Codeforces Testing Round #5 | 8 | |

496 | BerDonalds | Codeforces | Codeforces Round #163 (Div. 2) | 8 | |

497 | Rats | Codeforces | Codeforces Round #155 (Div. 2) | 9 | |

498 | Road Repairs | Codeforces | Codeforces Round #145 (Div. 1, ACM-ICPC Rules) | 9 | |

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

500 | Bitonix' Patrol | Codeforces | Codeforces Round #134 (Div. 1) | 9 | |

501 | Battlefield | Codeforces | Codeforces Round #117 (Div. 2) | 9 | |

502 | BHTML+BCSS | Codeforces | Croc Champ 2012 - Qualification Round | 9 | |

503 | Cycle | Codeforces | Codeforces Beta Round #97 (Div. 1) | 9 | |

504 | Winning Strategy | Codeforces | Yandex.Algorithm 2011 Finals | 9 | |

505 | Track | Codeforces | Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) | 9 | |

506 | Evacuation | Codeforces | Codeforces Beta Round #70 (Div. 2) | 9 | |

507 | Ship's Shortest Path | Codeforces | Codeforces Beta Round #67 (Div. 2) | 9 | |

508 | Harry Potter and the Sorting Hat | Codeforces | Codeforces Beta Round #60 | 9 | |

509 | Wormhouse | Codeforces | Codeforces Beta Round #58 | 9 | |

510 | Caterpillar | Codeforces | Codeforces Beta Round #48 | 9 | |

511 | Trial for Chief | Codeforces | Codeforces Beta Round #37 | 9 | |

512 | São João | SPOJ Brazil | 9 | ||

513 | Clockwork Bomb | Codeforces | Codeforces Round #345 (Div. 1) | 9 | |

514 | Wilbur and Strings | Codeforces | Codeforces Round #331 (Div. 2) | 9 | |

515 | Superhero's Job | Codeforces | VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) | 9 | |

516 | Cycling City | Codeforces | Codeforces Round #295 (Div. 1) | 9 | |

517 | Strongly Connected City 2 | Codeforces | Bayan 2015 Contest Warm Up | 9 | |

518 | The Classic Problem | Codeforces | Codeforces Round #265 (Div. 1) | 9 | |

519 | Game with Points | Codeforces | Testing Round #9 | 9 | |

520 | Circling Round Treasures | Codeforces | Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) | 9 | |

521 | Levko and Game | Codeforces | Codeforces Round #210 (Div. 1) | 9 | |

522 | Neatness | Codeforces | Codeforces Round #209 (Div. 2) | 9 | |

523 | Pilgrims | Codeforces | Codeforces Round #202 (Div. 1) | 9 | |

524 | Pumping Stations | Codeforces | Codeforces Round #200 (Div. 1) | 9 | |

525 | The Red Button | Codeforces | MemSQL start[c]up Round 1 | 9 | |

526 | Monsters and Diamonds | Codeforces | MemSQL start[c]up Round 1 | 9 | |

527 | Fetch the Treasure | Codeforces | Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) | 9 | |

528 | Maze | Codeforces | Codeforces Beta Round #92 (Div. 1 Only) | 9 | |

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

530 | Bear and Chase | Codeforces | Codeforces Round #356 (Div. 1) | 9 | |

531 | Simplifying the Farm | SPOJ | 9 | ||

532 | Arkady and a Nobody-men | Codeforces | Codeforces Round #434 (Div. 1, based on Technocup 2018 Elimination Round 1) | 9 | |

533 | Sagheer and Kindergarten | Codeforces | Codeforces Round #417 (Div. 2) | 9 | |

534 | DFS | Codeforces | Lyft Level 5 Challenge 2018 - Final Round | 9 | |

535 | Tree and Table | Codeforces | Codeforces Round #153 (Div. 1) | 10 | |

536 | Doe Graphs | Codeforces | Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) | 10 | |

537 | Gnomes of Might and Magic | Codeforces | Codeforces Round #115 | 10 | |

538 | Battleship | Codeforces | Unknown Language Round #3 | 10 | |

539 | Leaders | Codeforces | Yandex.Algorithm 2011 Finals | 10 | |

540 | Harry Potter and Moving Staircases | Codeforces | Codeforces Beta Round #60 | 10 | |

541 | Chess | Codeforces | Codeforces Beta Round #53 | 10 | |

542 | Baldman and the military | Codeforces | Codeforces Beta Round #41 | 10 | |

543 | Bear and Chemistry | Codeforces | VK Cup 2016 - Round 1 | 10 | |

544 | Island Puzzle | Codeforces | 8VC Venture Cup 2016 - Final Round | 10 | |

545 | Taxi in Berland | Codeforces | 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) | 10 | |

546 | Logistical Questions | Codeforces | VK Cup 2015 - Finals, online mirror | 10 | |

547 | Summer Dichotomy | Codeforces | Codeforces Round #300 | 10 | |

548 | Berland Miners | Codeforces | VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) | 10 | |

549 | Misha and LCP on Tree | Codeforces | Codeforces Round #285 (Div. 1) | 10 | |

550 | Wavy numbers | Codeforces | Codeforces Round #273 (Div. 2) | 10 | |

551 | Appleman and a Game | Codeforces | Codeforces Round #263 (Div. 1) | 10 | |

552 | Colored Jenga | Codeforces | Codeforces Round #242 (Div. 2) | 10 | |

553 | Chain Letter | Codeforces | Friday the 13th, Programmers Day | 10 | |

554 | Escaping on Beaveractor | Codeforces | ABBYY Cup 3.0 - Finals (online version) | 10 | |

555 | Princess and Her Shadow | Codeforces | Codeforces Round #188 (Div. 1) | 10 | |

556 | Suns and Rays | Codeforces | ABBYY Cup 3.0 | 10 | |

557 | Suns and Rays | Codeforces | ABBYY Cup 3.0 | 10 | |

558 | Greedy Petya | Codeforces | April Fools Day Contest 2013 | 10 | |

559 | Dynamic Programming | A2 Online Judge | 10 | ||

560 | #dynamic-programming (168)</span> | SPOJ | 10 | ||

561 | Longest Maze Path | SPOJ | 10 | ||

562 | Sloth | Codeforces | Codeforces Round #446 (Div. 1) | 10 | |

563 | Rap God | Codeforces | Codeforces Round #406 (Div. 1) | 10 | |

564 | Nikita and game | Codeforces | Codeforces Round #430 (Div. 2) | 10 | |

565 | The Overdosing Ubiquity | Codeforces | Codeforces Round #439 (Div. 2) | 10 |