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

1 | Aggressive cows | SPOJ | 1 | ||

2 | Copying Books | SPOJ | 1 | ||

3 | Fill the Cisterns | SPOJ | 1 | ||

4 | Pie | SPOJ | 1 | ||

5 | Pyramids | SPOJ | 1 | ||

6 | Sphere in a tetrahedron | SPOJ | 1 | ||

7 | 4 values whose sum is 0 | SPOJ | 1 | ||

8 | ABCDEF | SPOJ | 1 | ||

9 | Help the soldier | SPOJ | 1 | ||

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

11 | K12 - Building Construction | SPOJ | 1 | ||

12 | Hamster flight | SPOJ | 1 | ||

13 | Eko | SPOJ | 1 | ||

14 | String it out | SPOJ | 1 | ||

15 | Not a Triangle | SPOJ | 1 | ||

16 | Shake Shake Shaky | SPOJ | 1 | ||

17 | Exact Sum | UVA | 1 | ||

18 | 4 Values whose Sum is 0 | TJU | 1 | ||

19 | Solve It | UVA | 1 | ||

20 | Touch of Venom | SPOJ | 1 | ||

21 | The Playboy Chimp | UVA | 1 | ||

22 | Where is the Marble? | UVA | 1 | ||

23 | Books | Codeforces | Codeforces Round #171 (Div. 2) | 1 | |

24 | Cable master | PKU | 1 | ||

25 | Aggressive cows | PKU | 1 | ||

26 | River Hopscotch | PKU | 1 | ||

27 | Monthly Expense | PKU | 1 | ||

28 | Queries about less or equal elements | Codeforces | Educational Codeforces Round 2 | 1 | |

29 | Kefa and Company | Codeforces | Codeforces Round #321 (Div. 2) | 1 | |

30 | Vanya and Lanterns | Codeforces | Codeforces Round #280 (Div. 2) | 1 | |

31 | Worms | Codeforces | Codeforces Round #271 (Div. 2) | 1 | |

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

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

34 | Interesting drink | Codeforces | Codeforces Round #367 (Div. 2) | 1 | |

35 | Chloe and the sequence | Codeforces | Codeforces Round #384 (Div. 2) | 1 | |

36 | GCD LCM | UVA | 1 | ||

37 | Prime Frequency | UVA | 1 | ||

38 | Ternary | UVA | 1 | ||

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

40 | Crossed Ladders | UVA | 2 | ||

41 | Burning Midnight Oil | Codeforces | Codeforces Round #112 (Div. 2) | 2 | |

42 | Mummy Madness | Live Archive | 2011 | World Finals - Orlando | 2 |

43 | Copying Books | UVA | 2 | ||

44 | Points on Line | Codeforces | Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) | 2 | |

45 | Rank List | Codeforces | Codeforces Round #113 (Div. 2) | 2 | |

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

47 | Lucky Numbers (easy) | Codeforces | Codeforces Beta Round #77 (Div. 2 Only) | 2 | |

48 | Distributing Ballot Boxes | SPOJ | 2 | ||

49 | Fill the Containers | UVA | 2 | ||

50 | Popes | UVA | 2 | ||

51 | Multiplication Table | Codeforces | Codeforces Round #256 (Div. 2) | 2 | |

52 | More Cowbell | Codeforces | Codeforces Round #334 (Div. 2) | 2 | |

53 | Drying | PKU | 2 | ||

54 | Dropping tests | PKU | 2 | ||

55 | K Best | PKU | 2 | ||

56 | Median | PKU | 2 | ||

57 | Moo University - Financial Aid | PKU | 2 | ||

58 | Chat Order | Codeforces | VK Cup 2016 - Qualification Round 1 | 2 | |

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

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

61 | Tourist's Notes | Codeforces | Codeforces Round #300 | 2 | |

62 | Counting Kangaroos is Fun | Codeforces | Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) | 2 | |

63 | Hamburgers | Codeforces | Codeforces Round #218 (Div. 2) | 2 | |

64 | Mafia | Codeforces | Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) | 2 | |

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

66 | k-Multiple Free Set | Codeforces | Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) | 2 | |

67 | Prime Matrix | Codeforces | Codeforces Round #166 (Div. 2) | 2 | |

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

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

70 | New Year and Rating | Codeforces | Good Bye 2016 | 2 | |

71 | String Game | Codeforces | Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) | 2 | |

72 | Karen and Coffee | Codeforces | Codeforces Round #419 (Div. 2) | 2 | |

73 | Sagheer and Nubian Market | Codeforces | Codeforces Round #417 (Div. 2) | 2 | |

74 | Anton and Fairy Tale | Codeforces | Codeforces Round #404 (Div. 2) | 2 | |

75 | Binary Search Tree | SPOJ | 2 | ||

76 | ICPC Scoreboard | Live Archive | 2007 | Latin America - South America | 2 |

77 | Meteors | SPOJ | 2 | ||

78 | Funny scales | SPOJ | 2 | ||

79 | ICPC Scoreboard | SPOJ | 3 | ||

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

81 | Primes on Interval | Codeforces | Codeforces Round #147 (Div. 2) | 3 | |

82 | Non-square Equation | Codeforces | Codeforces Round #144 (Div. 2) | 3 | |

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

84 | Array | Codeforces | Codeforces Round #138 (Div. 2) | 3 | |

85 | Little Elephant and Array | Codeforces | Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) | 3 | |

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

87 | Let's Watch Football | Codeforces | Codeforces Round #123 (Div. 2) | 3 | |

88 | Funky Numbers | Codeforces | Codeforces Round #121 (Div. 2) | 3 | |

89 | Roads Repair | SPOJ | 3 | ||

90 | grace marks | SPOJ | 3 | ||

91 | Trick or Treat | SPOJ | 3 | ||

92 | Glasnici | SPOJ | 3 | ||

93 | Towers of Hanoi | UVA | 3 | ||

94 | Through the Desert | UVA | 3 | ||

95 | Vasya and Basketball | Codeforces | Codeforces Round #281 (Div. 2) | 3 | |

96 | Fantastic Discovery | SPOJ | 3 | ||

97 | Cow Acrobats | PKU | 3 | ||

98 | Matrix | PKU | 3 | ||

99 | Telephone Lines | PKU | 3 | ||

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

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

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

103 | Glass Carving | Codeforces | Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) | 3 | |

104 | Watto and Mechanism | Codeforces | Codeforces Round #291 (Div. 2) | 3 | |

105 | Maximum Value | Codeforces | Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) | 3 | |

106 | Long Jumps | Codeforces | Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) | 3 | |

107 | Present | Codeforces | Codeforces Round #262 (Div. 2) | 3 | |

108 | Megacity | Codeforces | Codeforces Round #242 (Div. 2) | 3 | |

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

110 | Mashmokh and Tokens | Codeforces | Codeforces Round #240 (Div. 2) | 3 | |

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

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

113 | Quiz | Codeforces | Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) | 3 | |

114 | Eugeny and Play List | Codeforces | Codeforces Round #182 (Div. 2) | 3 | |

115 | LLPS | Codeforces | Codeforces Round #127 (Div. 2) | 3 | |

116 | Dress'em in Vests! | Codeforces | VK Cup 2012 Round 1 | 3 | |

117 | Modified GCD | Codeforces | Codeforces Beta Round #67 (Div. 2) | 3 | |

118 | Grapevine | UVA | 3 | ||

119 | Exams | Codeforces | Codeforces Round #377 (Div. 2) | 3 | |

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

121 | Cloud of Hashtags | Codeforces | Codeforces Round #401 (Div. 2) | 3 | |

122 | Vasiliy's Multiset | Codeforces | Codeforces Round #367 (Div. 2) | 3 | |

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

124 | Well-known Numbers | Codeforces | Codeforces Round #139 (Div. 2) | 4 | |

125 | Little Elephant and Cards | Codeforces | Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) | 4 | |

126 | Find Pair | Codeforces | Codeforces Round #111 (Div. 2) | 4 | |

127 | String Manipulation 1.0 | Codeforces | VK Cup 2012 Qualification Round 2 | 4 | |

128 | Matchmaker | Codeforces | VK Cup 2012 Qualification Round 2 | 4 | |

129 | Steps | Codeforces | Codeforces Round #108 (Div. 2) | 4 | |

130 | Escape | Codeforces | Codeforces Round #105 (Div. 2) | 4 | |

131 | New Year Snowmen | Codeforces | Codeforces Round #100 | 4 | |

132 | Queue | Codeforces | Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) | 4 | |

133 | Binary Number | Codeforces | Codeforces Beta Round #75 (Div. 2 Only) | 4 | |

134 | Garland | PKU | 4 | ||

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

136 | Longest k-Good Segment | Codeforces | Educational Codeforces Round 5 | 4 | |

137 | Peter and Snow Blower | Codeforces | Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) | 4 | |

138 | Pasha and Phone | Codeforces | Codeforces Round #330 (Div. 2) | 4 | |

139 | Weakness and Poorness | Codeforces | Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] | 4 | |

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

141 | One-Dimensional Battle Ships | Codeforces | Codeforces Round #Pi (Div. 2) | 4 | |

142 | GukiZ hates Boxes | Codeforces | Codeforces Round #307 (Div. 2) | 4 | |

143 | Tavas and Karafs | Codeforces | Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) | 4 | |

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

145 | Tennis Game | Codeforces | Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) | 4 | |

146 | Vanya and Computer Game | Codeforces | Codeforces Round #280 (Div. 2) | 4 | |

147 | Fight the Monster | Codeforces | Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) | 4 | |

148 | Friends and Presents | Codeforces | Codeforces Round #275 (Div. 2) | 4 | |

149 | MUH and House of Cards | Codeforces | Codeforces Round #269 (Div. 2) | 4 | |

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

151 | Devu and his Brother | Codeforces | Codeforces Round #251 (Div. 2) | 4 | |

152 | Sereja and Prefixes | Codeforces | Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) | 4 | |

153 | Pair of Numbers | Codeforces | Codeforces Round #209 (Div. 2) | 4 | |

154 | Ciel and Robot | Codeforces | Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) | 4 | |

155 | Pipeline | Codeforces | Codeforces Round #176 (Div. 2) | 4 | |

156 | Petya and Divisors | Codeforces | Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) | 4 | |

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

158 | Robin Hood | Codeforces | Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) | 4 | |

159 | As Fast As Possible | Codeforces | Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) | 4 | |

160 | 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 | |

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

162 | Mike and Chocolate Thieves | Codeforces | Codeforces Round #361 (Div. 2) | 4 | |

163 | XK Segments | Codeforces | Codeforces Round #448 (Div. 2) | 4 | |

164 | Showstopper | SPOJ | 5 | ||

165 | Energy exchange | Codeforces | Codeforces Beta Round #62 | 5 | |

166 | Guilty --- to the kitchen! | Codeforces | Codeforces Beta Round #41 | 5 | |

167 | Unordered Subsequence | Codeforces | Codeforces Beta Round #27 (Codeforces format, Div. 2) | 5 | |

168 | Monitor | Codeforces | Codeforces Beta Round #16 (Div. 2 Only) | 5 | |

169 | Exposition | Codeforces | Codeforces Beta Round #6 (Div. 2 Only) | 5 | |

170 | Showstopper | PKU | 5 | ||

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

172 | Enduring Exodus | Codeforces | CROC 2016 - Elimination Round | 5 | |

173 | Skills | Codeforces | Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) | 5 | |

174 | Chip 'n Dale Rescue Rangers | Codeforces | Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) | 5 | |

175 | Gourmet and Banquet | Codeforces | 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) | 5 | |

176 | Kyoya and Permutation | Codeforces | Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) | 5 | |

177 | Degenerate Matrix | Codeforces | Looksery Cup 2015 | 5 | |

178 | Handshakes | Codeforces | Codeforces Round #298 (Div. 2) | 5 | |

179 | The Art of Dealing with ATM | Codeforces | VK Cup 2015 - Round 1 | 5 | |

180 | R2D2 and Droid Army | Codeforces | Codeforces Round #291 (Div. 2) | 5 | |

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

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

183 | Preparing for the Contest | Codeforces | Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) | 5 | |

184 | Making Sequences is Fun | Codeforces | Codeforces Round #219 (Div. 2) | 5 | |

185 | Sereja ans Anagrams | Codeforces | Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) | 5 | |

186 | Renting Bikes | Codeforces | Codeforces Round #211 (Div. 2) | 5 | |

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

188 | Read Time | Codeforces | Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) | 5 | |

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

190 | Cycles | Codeforces | Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) | 5 | |

191 | Olympiad | Codeforces | Codeforces Round #137 (Div. 2) | 5 | |

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

193 | Misha and Permutations Summation | Codeforces | Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) | 5 | |

194 | Road to Post Office | Codeforces | Educational Codeforces Round 15 | 5 | |

195 | Copying Data | Codeforces | Croc Champ 2013 - Round 1 | 5 | |

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

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

198 | Leaving Auction | Codeforces | Codeforces Round #388 (Div. 2) | 5 | |

199 | Cartons of milk | Codeforces | Codeforces Round #398 (Div. 2) | 5 | |

200 | Fedor and coupons | Codeforces | Codeforces Round #390 (Div. 2) | 5 | |

201 | Vitya and Strange Lesson | Codeforces | Codeforces Round #430 (Div. 2) | 5 | |

202 | Friends and Subsequences | Codeforces | Codeforces Round #361 (Div. 2) | 5 | |

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

204 | Mr. Bender and Square | Codeforces | Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) | 6 | |

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

206 | Guess That Car! | Codeforces | Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) | 6 | |

207 | Mushroom Scientists | Codeforces | Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) | 6 | |

208 | Number of Triplets | Codeforces | Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) | 6 | |

209 | Hot Bath | Codeforces | Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) | 6 | |

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

211 | Sum of Medians | Codeforces | Yandex.Algorithm 2011 Round 1 | 6 | |

212 | Doctor | Codeforces | Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) | 6 | |

213 | Tyndex.Brome | Codeforces | Codeforces Beta Round #58 | 6 | |

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

215 | Array | Codeforces | Codeforces Beta Round #53 | 6 | |

216 | Boxes of Chocolate | SPOJ | 6 | ||

217 | CUBE ROOT | SPOJ | 6 | ||

218 | Delivery Bears | Codeforces | IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) | 6 | |

219 | Gadgets for dollars and pounds | Codeforces | Educational Codeforces Round 3 | 6 | |

220 | Hiring | Codeforces | 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) | 6 | |

221 | GukiZ and GukiZiana | Codeforces | Codeforces Round #307 (Div. 2) | 6 | |

222 | Infinite Inversions | Codeforces | Codeforces Round #301 (Div. 2) | 6 | |

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

224 | Restoring Increasing Sequence | Codeforces | Codeforces Round #279 (Div. 2) | 6 | |

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

226 | Police Patrol | Codeforces | Codeforces Round #244 (Div. 2) | 6 | |

227 | Fly, freebies, fly! | Codeforces | Testing Round #9 | 6 | |

228 | Number Busters | Codeforces | Codeforces Round #224 (Div. 2) | 6 | |

229 | Valera and Queries | Codeforces | Codeforces Round #216 (Div. 2) | 6 | |

230 | Banana | Codeforces | MemSQL start[c]up Round 2 - online version | 6 | |

231 | Characteristics of Rectangles | Codeforces | Codeforces Round #194 (Div. 1) | 6 | |

232 | Stadium and Games | Codeforces | MemSQL start[c]up Round 1 | 6 | |

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

234 | Santa Claus and Tangerines | Codeforces | Technocup 2017 - Elimination Round 3 | 6 | |

235 | Searching Rectangles | Codeforces | Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) | 6 | |

236 | Glad to see you! | Codeforces | Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) | 6 | |

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

238 | Binary Search Tree | UVA | 6 | ||

239 | Building Bridge | Codeforces | CROC-MBTU 2012, Final Round (Online version, Div. 2) | 7 | |

240 | Robo-Footballer | Codeforces | Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) | 7 | |

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

242 | Log Stream Analysis | Codeforces | CROC-MBTU 2012, Elimination Round (ACM-ICPC) | 7 | |

243 | Spider's Web | Codeforces | Codeforces Round #133 (Div. 2) | 7 | |

244 | Programming Language | Codeforces | Codeforces Round #126 (Div. 2) | 7 | |

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

246 | Lemmings | Codeforces | VK Cup 2012 Round 2 | 7 | |

247 | Mushroom Gnomes - 2 | Codeforces | Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) | 7 | |

248 | Biathlon | Codeforces | Codeforces Beta Round #72 (Div. 2 Only) | 7 | |

249 | Optical Experiment | Codeforces | Manthan 2011 | 7 | |

250 | Harry Potter and the Golden Snitch | Codeforces | Codeforces Beta Round #60 | 7 | |

251 | Domino Principle | Codeforces | Codeforces Beta Round #52 (Div. 2) | 7 | |

252 | Blog Photo | Codeforces | Codeforces Beta Round #49 (Div. 2) | 7 | |

253 | Three Base Stations | Codeforces | Codeforces Beta Round #48 | 7 | |

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

255 | Hostname Aliases | Codeforces | CROC 2016 - Qualification | 7 | |

256 | Simple Skewness | Codeforces | 8VC Venture Cup 2016 - Elimination Round | 7 | |

257 | Professor GukiZ and Two Arrays | Codeforces | Educational Codeforces Round 6 | 7 | |

258 | Hexagons | Codeforces | Codeforces Round #338 (Div. 2) | 7 | |

259 | Case of a Top Secret | Codeforces | Codeforces Round #310 (Div. 1) | 7 | |

260 | Nudist Beach | Codeforces | Codeforces Round #309 (Div. 1) | 7 | |

261 | Arthur and Questions | Codeforces | Codeforces Round #293 (Div. 2) | 7 | |

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

263 | Sign on Fence | Codeforces | Codeforces Round #276 (Div. 1) | 7 | |

264 | Hack it! | Codeforces | Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) | 7 | |

265 | Sereja and Squares | Codeforces | Codeforces Round #243 (Div. 1) | 7 | |

266 | Bug in Code | Codeforces | Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) & Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) | 7 | |

267 | Inna and Binary Logic | Codeforces | Codeforces Round #234 (Div. 2) | 7 | |

268 | George and Cards | Codeforces | Codeforces Round #227 (Div. 2) | 7 | |

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

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

271 | Empire Strikes Back | Codeforces | Codeforces Round #181 (Div. 2) | 7 | |

272 | Printer | Codeforces | Codeforces Round #154 (Div. 2) | 8 | |

273 | Sweets for Everyone! | Codeforces | Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) | 8 | |

274 | Thwarting Demonstrations | Codeforces | Codeforces Round #121 (Div. 1) | 8 | |

275 | Space Voyage | Codeforces | ABBYY Cup 2.0 - Easy | 8 | |

276 | Smile House | Codeforces | Codeforces Testing Round #4 | 8 | |

277 | Present to Mom | Codeforces | Codeforces Beta Round #95 (Div. 2) | 8 | |

278 | MST Company | Codeforces | Codeforces Testing Round #2 | 8 | |

279 | Space Rescuers | Codeforces | Codeforces Beta Round #82 (Div. 2) | 8 | |

280 | Guard Towers | Codeforces | Yandex.Algorithm 2011 Round 1 | 8 | |

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

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

283 | Need For Brake | Codeforces | Codeforces Beta Round #66 | 8 | |

284 | Lucky Tickets | Codeforces | Codeforces Beta Round #64 | 8 | |

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

286 | Tricky and Clever Password | Codeforces | Codeforces Beta Round #30 (Codeforces format) | 8 | |

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

288 | Berland collider | Codeforces | Codeforces Beta Round #24 | 8 | |

289 | Two Friends | Codeforces | Codeforces Beta Round #8 | 8 | |

290 | Bear and Bowling 4 | Codeforces | Educational Codeforces Round 11 | 8 | |

291 | Startup Funding | Codeforces | Manthan, Codefest 16 | 8 | |

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

293 | Electric Charges | Codeforces | AIM Tech Round (Div. 1) & AIM Tech Round (Div. 2) | 8 | |

294 | New Year and Cleaning | Codeforces | Good Bye 2015 | 8 | |

295 | Max and Bike | Codeforces | Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) | 8 | |

296 | Misha and Palindrome Degree | Codeforces | Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) | 8 | |

297 | DZY Loves Planting | Codeforces | Codeforces Round #254 (Div. 1) | 8 | |

298 | DZY Loves Strings | Codeforces | Codeforces Round #254 (Div. 1) | 8 | |

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

300 | Mashmokh and Water Tanks | Codeforces | Codeforces Round #240 (Div. 1) | 8 | |

301 | Maze 1D | Codeforces | Codeforces Round #237 (Div. 2) | 8 | |

302 | Volcanoes | Codeforces | Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) | 8 | |

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

304 | Summer Earnings | Codeforces | Codeforces Round #194 (Div. 1) | 8 | |

305 | Sereja and Straight Lines | Codeforces | Codeforces Round #187 (Div. 1) | 8 | |

306 | Memory for Arrays | Codeforces | Croc Champ 2013 - Finals (online version, Div. 1) | 8 | |

307 | Morning run | Codeforces | Croc Champ 2013 - Finals (online version, Div. 1) | 8 | |

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

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

310 | Animals and Puzzle | Codeforces | Codeforces Round #371 (Div. 1) | 8 | |

311 | Friends | Codeforces | Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) | 9 | |

312 | Fence | Codeforces | Codeforces Round #144 (Div. 1) | 9 | |

313 | Cutting a Fence | Codeforces | VK Cup 2012 Finals (unofficial online-version) | 9 | |

314 | Thoroughly Bureaucratic Organization | Codeforces | Codeforces Round #127 (Div. 1) | 9 | |

315 | Tractor College | Codeforces | Codeforces Round #126 (Div. 2) | 9 | |

316 | Gripping Story | Codeforces | Codeforces Round #125 (Div. 1) | 9 | |

317 | Delivering Carcinogen | Codeforces | Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) | 9 | |

318 | Space Voyage | Codeforces | ABBYY Cup 2.0 - Easy | 9 | |

319 | Minimum Diameter | Codeforces | VK Cup 2012 Round 3 | 9 | |

320 | Buses and People | Codeforces | Codeforces Round #111 (Div. 2) | 9 | |

321 | Freezing with Style | Codeforces | Codeforces Round #107 (Div. 1) | 9 | |

322 | Lucky Segments | Codeforces | Codeforces Beta Round #91 (Div. 1 Only) | 9 | |

323 | Help Greg the Dwarf | Codeforces | Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) | 9 | |

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

325 | Archer's Shot | Codeforces | Codeforces Beta Round #70 (Div. 2) | 9 | |

326 | Pasha and Pipe | Codeforces | Codeforces Round #293 (Div. 2) | 9 | |

327 | Mr. Kitayuta vs. Bamboos | Codeforces | Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) | 9 | |

328 | Chemistry Experiment | Codeforces | Codeforces Round #247 (Div. 2) | 9 | |

329 | Dividing Kingdom | Codeforces | Codeforces Round #158 (Div. 2) | 9 | |

330 | Optimal Point | Codeforces | Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) | 9 | |

331 | Karen and Cards | Codeforces | Codeforces Round #419 (Div. 1) | 9 | |

332 | Strange Radiation | Codeforces | Codeforces Round #425 (Div. 2) | 9 | |

333 | Road to Home | Codeforces | Codeforces Round #374 (Div. 2) | 9 | |

334 | Soap Time! - 2 | Codeforces | Codeforces Round #118 (Div. 1) | 10 | |

335 | Armistice Area Apportionment | Codeforces | CROC 2016 - Elimination Round | 10 | |

336 | Cross Sum | Codeforces | Codeforces Round #336 (Div. 1) | 10 | |

337 | BCPC | Codeforces | Codeforces Round #328 (Div. 2) | 10 | |

338 | Duff in Mafia | Codeforces | Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) | 10 | |

339 | Painting Edges | Codeforces | Codeforces Round #319 (Div. 1) | 10 | |

340 | Campus | Codeforces | Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) | 10 | |

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

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

343 | Furukawa Nagisa's Tree | Codeforces | Codeforces Round #248 (Div. 1) | 10 | |

344 | Inna and Babies | Codeforces | Codeforces Round #220 (Div. 2) | 10 | |

345 | Looking for Owls | Codeforces | Codeforces Round #203 (Div. 2) | 10 | |

346 | Sheep | Codeforces | Croc Champ 2013 - Finals (online version, Div. 1) | 10 | |

347 | Forward, march! | Codeforces | Codeforces Beta Round #11 | 10 | |

348 | Karen and Neighborhood | Codeforces | Codeforces Round #419 (Div. 1) | 10 | |

349 | Mod Mod Mod | Codeforces | Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) | 10 | |

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