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

1 | Registration System | Codeforces | Codeforces Beta Round #4 (Div. 2 Only) | 1 |

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

3 | Lucky Sum of Digits | Codeforces | Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) | 1 |

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

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

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

7 | Little Girl and Maximum Sum | Codeforces | Codeforces Round #169 (Div. 2) | 1 |

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

9 | Building Permutation | Codeforces | Codeforces Round #175 (Div. 2) | 1 |

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

11 | Team | Codeforces | Codeforces Round #235 (Div. 2) | 1 |

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

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

14 | Appleman and Toastman | Codeforces | Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) | 1 |

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

16 | Table Decorations | Codeforces | Codeforces Round #273 (Div. 2) | 1 |

17 | Exams | Codeforces | Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) | 1 |

18 | Diverse Permutation | Codeforces | Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) | 1 |

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

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

21 | A and B and Team Training | Codeforces | Codeforces Round #294 (Div. 2) | 1 |

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

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

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

25 | Gerald's Hexagon | Codeforces | Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) | 1 |

26 | Bear and Poker | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) | 1 |

27 | Vasya and Petya's Game | Codeforces | Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) | 1 |

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

29 | Watchmen | Codeforces | Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) | 1 |

30 | Tanya and Toys | Codeforces | Codeforces Round #346 (Div. 2) | 1 |

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

32 | Vacations | Codeforces | Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) | 1 |

33 | Sanatorium | Codeforces | Codeforces Round #377 (Div. 2) | 1 |

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

35 | Dishonest Sellers | Codeforces | Codeforces Round #402 (Div. 2) | 1 |

36 | Find Amir | Codeforces | Codeforces Round #411 (Div. 1) & Codeforces Round #411 (Div. 2) | 1 |

37 | The Closest Pair Problem | UVA | 1 | |

38 | Classroom Watch | Codeforces | Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) | 1 |

39 | Cards | Codeforces | Codeforces Round #364 (Div. 2) | 1 |

40 | Alice, Bob and Chocolate | Codeforces | Codeforces Beta Round #6 (Div. 2 Only) | 2 |

41 | Hexadecimal's Numbers | Codeforces | Codeforces Beta Round #9 (Div. 2 Only) | 2 |

42 | The World is a Theatre | Codeforces | Codeforces Beta Round #95 (Div. 2) | 2 |

43 | Lucky Conversion | Codeforces | Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) | 2 |

44 | Pocket Book | Codeforces | Codeforces Round #108 (Div. 2) | 2 |

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

46 | Little Elephant and Problem | Codeforces | Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) | 2 |

47 | LCM Challenge | Codeforces | Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) | 2 |

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

49 | Escape from Stones | Codeforces | Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) | 2 |

50 | Beautiful Sets of Points | Codeforces | Codeforces Round #164 (Div. 2) | 2 |

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

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

53 | Greg and Array | Codeforces | Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) | 2 |

54 | Rational Resistance | Codeforces | Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) | 2 |

55 | Alice and Bob | Codeforces | Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) | 2 |

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

57 | Knight Tournament | Codeforces | Codeforces Round #207 (Div. 1) & Codeforces Round #207 (Div. 2) | 2 |

58 | Fixing Typos | Codeforces | Codeforces Round #211 (Div. 2) | 2 |

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

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

61 | Fox and Box Accumulation | Codeforces | Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) | 2 |

62 | Mashmokh and Numbers | Codeforces | Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) | 2 |

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

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

65 | The Child and Toy | Codeforces | Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) | 2 |

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

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

68 | Little Pony and Expected Maximum | Codeforces | Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) | 2 |

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

70 | 24 Game | Codeforces | Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) | 2 |

71 | Design Tutorial: Make It Nondeterministic | Codeforces | Codeforces Round #270 | 2 |

72 | Bits | Codeforces | Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) | 2 |

73 | Palindrome Transformation | Codeforces | Codeforces Round #277 (Div. 2) | 2 |

74 | Hacking Cypher | Codeforces | Codeforces Round #279 (Div. 2) | 2 |

75 | Vanya and Exams | Codeforces | Codeforces Round #280 (Div. 2) | 2 |

76 | Removing Columns | Codeforces | Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) | 2 |

77 | Crazy Town | Codeforces | Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) | 2 |

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

79 | Anya and Smartphone | Codeforces | Codeforces Round #293 (Div. 2) | 2 |

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

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

82 | Case of Matryoshkas | Codeforces | Codeforces Round #310 (Div. 1) & Codeforces Round #310 (Div. 2) | 2 |

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

84 | Replacement | Codeforces | Codeforces Round #316 (Div. 2) | 2 |

85 | Developing Skills | Codeforces | Codeforces Round #322 (Div. 2) | 2 |

86 | GCD Table | Codeforces | Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) | 2 |

87 | Duff and Weight Lifting | Codeforces | Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) | 2 |

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

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

90 | Sorting Railway Cars | Codeforces | Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) | 2 |

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

92 | K-special Tables | Codeforces | Codeforces Round #342 (Div. 2) | 2 |

93 | Cinema | Codeforces | Codeforces Round #350 (Div. 2) | 2 |

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

95 | Bear and Prime 100 | Codeforces | Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) | 2 |

96 | They Are Everywhere | Codeforces | Codeforces Round #364 (Div. 2) | 2 |

97 | Thor | Codeforces | Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) | 2 |

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

99 | Pythagorean Triples | Codeforces | Codeforces Round #368 (Div. 2) | 2 |

100 | Sonya and Queries | Codeforces | Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) | 2 |

101 | Plus and Square Root | Codeforces | Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) | 2 |

102 | Alyona and mex | Codeforces | Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) | 2 |

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

104 | Vladik and fractions | Codeforces | Codeforces Round #384 (Div. 2) | 2 |

105 | PolandBall and Forest | Codeforces | 8VC Venture Cup 2017 - Elimination Round | 2 |

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

107 | Table Tennis Game 2 | Codeforces | Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 2 |

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

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

110 | Bear and Different Names | Codeforces | VK Cup 2017 - Round 1 | 2 |

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

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

113 | Leha and Function | Codeforces | Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) | 2 |

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

115 | Bear and Forgotten Tree 3 | Codeforces | VK Cup 2016 - Round 1 | 2 |

116 | Bus | Codeforces | Codeforces Round #436 (Div. 2) | 2 |

117 | Maximum splitting | Codeforces | Technocup 2018 - Elimination Round 2 | 2 |

118 | Rumor | Codeforces | Educational Codeforces Round 33 (Rated for Div. 2) | 2 |

119 | Seat Arrangements | Codeforces | Codeforces Round #460 (Div. 2) | 2 |

120 | Tic-tac-toe | Codeforces | Codeforces Beta Round #3 | 3 |

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

122 | Stripe | Codeforces | Codeforces Beta Round #18 (Div. 2 Only) | 3 |

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

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

125 | Petya and Inequiations | Codeforces | Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) | 3 |

126 | Lucky Sum | Codeforces | Codeforces Beta Round #91 (Div. 1 Only) & Codeforces Beta Round #91 (Div. 2 Only) | 3 |

127 | Replacement | Codeforces | Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) | 3 |

128 | History | Codeforces | Codeforces Beta Round #98 (Div. 2) | 3 |

129 | Win or Freeze | Codeforces | Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) | 3 |

130 | Median | Codeforces | Codeforces Round #113 (Div. 2) | 3 |

131 | Plant | Codeforces | Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) | 3 |

132 | Lexicographically Maximum Subsequence | Codeforces | Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) | 3 |

133 | Photographer | Codeforces | Codeforces Round #128 (Div. 2) | 3 |

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

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

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

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

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

139 | Maxim and Discounts | Codeforces | Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) | 3 |

140 | Dima and Staircase | Codeforces | Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) | 3 |

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

142 | XOR and OR | Codeforces | Codeforces Round #173 (Div. 2) | 3 |

143 | Cows and Sequence | Codeforces | Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) | 3 |

144 | Lucky Permutation Triple | Codeforces | Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) | 3 |

145 | Ilya and Matrix | Codeforces | Codeforces Round #186 (Div. 2) | 3 |

146 | Perfect Pair | Codeforces | Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) | 3 |

147 | Purification | Codeforces | Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) | 3 |

148 | Secrets | Codeforces | Codeforces Round #194 (Div. 1) & Codeforces Round #194 (Div. 2) | 3 |

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

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

151 | Bombs | Codeforces | Codeforces Round #203 (Div. 2) | 3 |

152 | Vasya and Robot | Codeforces | Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) | 3 |

153 | Sereja and Algorithm | Codeforces | Codeforces Round #215 (Div. 1) | 3 |

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

155 | Arithmetic Progression | Codeforces | Codeforces Round #224 (Div. 2) | 3 |

156 | Milking cows | Codeforces | Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) | 3 |

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

158 | Searching for Graph | Codeforces | Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) | 3 |

159 | Unusual Product | Codeforces | Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) | 3 |

160 | Triangle | Codeforces | Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) | 3 |

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

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

163 | Jzzhu and Chocolate | Codeforces | Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) | 3 |

164 | Pashmak and Buses | Codeforces | Codeforces Round #261 (Div. 2) | 3 |

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

166 | Gargari and Bishops | Codeforces | Codeforces Round #264 (Div. 2) | 3 |

167 | No to Palindromes! | Codeforces | Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2) | 3 |

168 | Dreamoon and Sums | Codeforces | Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) | 3 |

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

170 | Treasure | Codeforces | Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) | 3 |

171 | Misha and Forest | Codeforces | Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) | 3 |

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

173 | Guess Your Way Out! | Codeforces | Codeforces Round #287 (Div. 2) | 3 |

174 | Anya and Ghosts | Codeforces | Codeforces Round #288 (Div. 2) | 3 |

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

176 | DNA Alignment | Codeforces | Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) | 3 |

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

178 | Ilya and Sticks | Codeforces | Codeforces Round #297 (Div. 2) | 3 |

179 | Polycarpus' Dice | Codeforces | Codeforces Round #298 (Div. 2) | 3 |

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

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

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

183 | Primes or Palindromes? | Codeforces | Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) | 3 |

184 | A Problem about Polyline | Codeforces | Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] | 3 |

185 | Marina and Vasya | Codeforces | Codeforces Round #324 (Div. 2) | 3 |

186 | Gennady the Dentist | Codeforces | Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) | 3 |

187 | Median Smoothing | Codeforces | Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) | 3 |

188 | Day at the Beach | Codeforces | Codeforces Round #332 (Div. 2) | 3 |

189 | Watering Flowers | Codeforces | Codeforces Round #340 (Div. 2) | 3 |

190 | Wet Shark and Flowers | Codeforces | Codeforces Round #341 (Div. 2) | 3 |

191 | Little Artem and Matrix | Codeforces | VK Cup 2016 - Round 2 | 3 |

192 | Bear and Colors | Codeforces | VK Cup 2016 - Round 3 | 3 |

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

194 | Vanya and Label | Codeforces | Codeforces Round #355 (Div. 2) | 3 |

195 | Heap Operations | Codeforces | Codeforces Round #357 (Div. 2) | 3 |

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

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

198 | Lorenzo Von Matterhorn | Codeforces | Codeforces Round #362 (Div. 1) & Codeforces Round #362 (Div. 2) | 3 |

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

200 | Joty and Chocolate | Codeforces | Educational Codeforces Round 13 | 3 |

201 | Memory and De-Evolution | Codeforces | Codeforces Round #370 (Div. 2) | 3 |

202 | Efim and Strange Grade | Codeforces | Codeforces Round #373 (Div. 1) & Codeforces Round #373 (Div. 2) | 3 |

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

204 | Polycarp at the Radio | Codeforces | Codeforces Round #375 (Div. 2) | 3 |

205 | Socks | Codeforces | Codeforces Round #376 (Div. 2) | 3 |

206 | Anton and Making Potions | Codeforces | Codeforces Round #379 (Div. 2) | 3 |

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

208 | Voting | Codeforces | Codeforces Round #388 (Div. 2) | 3 |

209 | Servers | Codeforces | Codeforces Round #387 (Div. 2) | 3 |

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

211 | Santa Claus and Robot | Codeforces | Technocup 2017 - Elimination Round 3 | 3 |

212 | Dasha and Password | Codeforces | Codeforces Round #394 (Div. 2) | 3 |

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

214 | Molly's Chemicals | Codeforces | ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) | 3 |

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

216 | Do you want a date? | Codeforces | Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) | 3 |

217 | Success Rate | Codeforces | VK Cup 2017 - Round 3 | 3 |

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

219 | Voltage Keepsake | Codeforces | VK Cup 2017 - Round 2 | 3 |

220 | Karen and Game | Codeforces | Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) | 3 |

221 | Star sky | Codeforces | Codeforces Round #427 (Div. 2) | 3 |

222 | The Meaningless Game | Codeforces | Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) | 3 |

223 | Hacker, pack your bags! | Codeforces | Codeforces Round #422 (Div. 2) | 3 |

224 | Okabe and Boxes | Codeforces | Codeforces Round #420 (Div. 2) | 3 |

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

226 | Sorting by Subsequences | Codeforces | AIM Tech Round 4 (Div. 1) & AIM Tech Round 4 (Div. 2) | 3 |

227 | Two TVs | Codeforces | Educational Codeforces Round 27 | 3 |

228 | Phone Numbers | Codeforces | Codeforces Round #451 (Div. 2) | 3 |

229 | Hashing Trees | Codeforces | Codeforces Round #453 (Div. 1) & Codeforces Round #453 (Div. 2) | 3 |

230 | Party Lemonade | Codeforces | Hello 2018 | 3 |

231 | Jamie and Interesting Graph | Codeforces | Codeforces Round #457 (Div. 2) | 3 |

232 | Swap Adjacent Elements | Codeforces | Educational Codeforces Round 37 (Rated for Div. 2) | 3 |

233 | Cave Painting | Codeforces | Codeforces Round #461 (Div. 2) | 3 |

234 | Convenient For Everybody | Codeforces | Codeforces Round #464 (Div. 2) | 3 |

235 | Fifa and Fafa | Codeforces | Codeforces Round #465 (Div. 2) | 3 |

236 | K-Multiple Free set | UVA | 3 | |

237 | Ancient Berland Circus | Codeforces | Codeforces Beta Round #1 | 4 |

238 | Fruits | Codeforces | Codeforces Beta Round #12 (Div 2 Only) | 4 |

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

240 | Page Numbers | Codeforces | Codeforces Beta Round #34 (Div. 2) | 4 |

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

242 | Lucky Tickets | Codeforces | Codeforces Beta Round #42 (Div. 2) | 4 |

243 | Little Frog | Codeforces | Codeforces Beta Round #49 (Div. 2) | 4 |

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

245 | Trains | Codeforces | Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) | 4 |

246 | Homework | Codeforces | Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) | 4 |

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

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

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

250 | Turing Tape | Codeforces | Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) | 4 |

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

252 | Anagram Search | Codeforces | Codeforces Round #103 (Div. 2) | 4 |

253 | Division into Teams | Codeforces | Codeforces Round #106 (Div. 2) | 4 |

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

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

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

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

258 | About Bacteria | Codeforces | Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) | 4 |

259 | Flying Saucer Segments | Codeforces | Codeforces Round #140 (Div. 1) & Codeforces Round #140 (Div. 2) | 4 |

260 | Shifts | Codeforces | Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) | 4 |

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

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

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

264 | View Angle | Codeforces | Codeforces Round #159 (Div. 2) | 4 |

265 | The Brand New Function | Codeforces | Codeforces Round #150 (Div. 1) & Codeforces Round #150 (Div. 2) | 4 |

266 | Magical Boxes | Codeforces | Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) | 4 |

267 | Secret | Codeforces | Codeforces Round #166 (Div. 2) | 4 |

268 | Lucky Permutation | Codeforces | Codeforces Round #176 (Div. 1) & Codeforces Round #176 (Div. 2) | 4 |

269 | Parity Game | Codeforces | Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) | 4 |

270 | Beautiful Numbers | Codeforces | Codeforces Round #181 (Div. 2) | 4 |

271 | Yaroslav and Sequence | Codeforces | Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) | 4 |

272 | The Closest Pair | Codeforces | Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) | 4 |

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

274 | Magic Five | Codeforces | Codeforces Round #191 (Div. 2) | 4 |

275 | Tourist Problem | Codeforces | Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) | 4 |

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

277 | Find Maximum | Codeforces | Codeforces Round #205 (Div. 2) | 4 |

278 | Matrix | Codeforces | Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) | 4 |

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

280 | Divisible by Seven | Codeforces | Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) | 4 |

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

282 | Inna and Huge Candy Matrix | Codeforces | Codeforces Round #234 (Div. 2) | 4 |

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

284 | Magic Formulas | Codeforces | Codeforces Round #242 (Div. 2) | 4 |

285 | Sereja and Swaps | Codeforces | Codeforces Round #243 (Div. 1) & Codeforces Round #243 (Div. 2) | 4 |

286 | Cardiogram | Codeforces | Codeforces Round #249 (Div. 2) | 4 |

287 | Devu and Partitioning of the Array | Codeforces | Codeforces Round #251 (Div. 2) | 4 |

288 | DZY Loves Physics | Codeforces | Codeforces Round #254 (Div. 1) & Codeforces Round #254 (Div. 2) | 4 |

289 | Predict Outcome of the Game | Codeforces | Codeforces Round #258 (Div. 2) | 4 |

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

291 | Captain Marmot | Codeforces | Codeforces Round #271 (Div. 2) | 4 |

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

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

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

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

296 | Amr and Chemistry | Codeforces | Codeforces Round #312 (Div. 2) | 4 |

297 | The Big Race | Codeforces | Codeforces Round #328 (Div. 2) | 4 |

298 | Harmony Analysis | Codeforces | Codeforces Round #337 (Div. 2) | 4 |

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

300 | Report | Codeforces | Codeforces Round #344 (Div. 2) | 4 |

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

302 | Money Transfers | Codeforces | Codeforces Round #353 (Div. 2) | 4 |

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

304 | Epidemic in Monstropolis | Codeforces | Codeforces Round #378 (Div. 2) | 4 |

305 | Road to Cinema | Codeforces | Technocup 2017 - Elimination Round 2 | 4 |

306 | Tram | Codeforces | Codeforces Round #386 (Div. 2) | 4 |

307 | Unfair Poll | Codeforces | Codeforces Round #392 (Div. 2) | 4 |

308 | Pavel and barbecue | Codeforces | 8VC Venture Cup 2017 - Final Round | 4 |

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

310 | Jon Snow and his Favourite Number | Codeforces | Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) | 4 |

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

312 | Naming Company | Codeforces | Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) | 4 |

313 | Fountains | Codeforces | Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) | 4 |

314 | Jury Marks | Codeforces | Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) | 4 |

315 | String Reconstruction | Codeforces | Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) | 4 |

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

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

318 | Qualification Rounds | Codeforces | Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 4 |

319 | Travelling Salesman and Special Numbers | Codeforces | Codecraft-18 and Codeforces Round #458 (Div. 1 + Div. 2, combined) | 4 |

320 | Line | Codeforces | Codeforces Beta Round #7 | 5 |

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

322 | Four Segments | Codeforces | Codeforces Beta Round #14 (Div. 2) | 5 |

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

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

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

326 | Email address | Codeforces | Codeforces Beta Round #40 (Div. 2) | 5 |

327 | Newspaper Headline | Codeforces | Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) | 5 |

328 | Frames | Codeforces | Codeforces Beta Round #76 (Div. 1 Only) & Codeforces Beta Round #76 (Div. 2 Only) | 5 |

329 | Grammar Lessons | Codeforces | Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) | 5 |

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

331 | Fancy Number | Codeforces | Codeforces Beta Round #89 (Div. 2) | 5 |

332 | Prime Permutation | Codeforces | Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) | 5 |

333 | Literature Lesson | Codeforces | Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) | 5 |

334 | Queue | Codeforces | Codeforces Round #101 (Div. 2) | 5 |

335 | Help Farmer | Codeforces | Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) | 5 |

336 | Terse princess | Codeforces | Codeforces Round #105 (Div. 2) | 5 |

337 | Wizards and Trolleybuses | Codeforces | Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) | 5 |

338 | Permutations | Codeforces | Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) | 5 |

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

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

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

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

343 | Bracket Sequence | Codeforces | Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) | 5 |

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

345 | Not Wool Sequences | Codeforces | Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) | 5 |

346 | Beauty Pageant | Codeforces | Codeforces Round #151 (Div. 2) | 5 |

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

348 | Balls and Boxes | Codeforces | Codeforces Round #158 (Div. 2) | 5 |

349 | Shaass and Lights | Codeforces | Codeforces Round #178 (Div. 2) | 5 |

350 | Ivan and Powers of Two | Codeforces | Codeforces Round #184 (Div. 2) | 5 |

351 | Sereja and Contest | Codeforces | Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) | 5 |

352 | Malek Dance Club | Codeforces | Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) | 5 |

353 | Vasily the Bear and Sequence | Codeforces | Codeforces Round #195 (Div. 2) | 5 |

354 | Cupboard and Balloons | Codeforces | Codeforces Round #199 (Div. 2) | 5 |

355 | Prime Number | Codeforces | Codeforces Round #209 (Div. 2) | 5 |

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

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

358 | George and Number | Codeforces | Codeforces Round #227 (Div. 2) | 5 |

359 | Prime Swaps | Codeforces | Codeforces Round #246 (Div. 2) | 5 |

360 | Ryouko's Memory Note | Codeforces | Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) | 5 |

361 | Borya and Hanabi | Codeforces | Codeforces Round #253 (Div. 1) & Codeforces Round #253 (Div. 2) | 5 |

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

363 | Mike and Frog | Codeforces | Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) | 5 |

364 | Lengthening Sticks | Codeforces | Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) | 5 |

365 | Wilbur and Points | Codeforces | Codeforces Round #331 (Div. 2) | 5 |

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

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

368 | Felicity is Coming! | Codeforces | Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) | 5 |

369 | Two strings | Codeforces | Educational Codeforces Round 17 | 5 |

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

371 | Bank Hacking | Codeforces | Codeforces Round #408 (Div. 2) | 5 |

372 | Strange Game On Matrix | Codeforces | Educational Codeforces Round 30 | 5 |

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

374 | Industrial Nim | Codeforces | Codeforces Beta Round #15 | 6 |

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

376 | System Administrator | Codeforces | Codeforces Beta Round #22 (Div. 2 Only) | 6 |

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

378 | Schedule | Codeforces | Codeforces Beta Round #31 (Div. 2, Codeforces format) | 6 |

379 | Flea | Codeforces | Codeforces Beta Round #32 (Div. 2, Codeforces format) | 6 |

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

381 | Blinds | Codeforces | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) | 6 |

382 | Hamsters and Tigers | Codeforces | School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) | 6 |

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

384 | Trees | Codeforces | Codeforces Beta Round #54 (Div. 2) | 6 |

385 | Title | Codeforces | Codeforces Beta Round #55 (Div. 2) | 6 |

386 | Bulls and Cows | Codeforces | Codeforces Beta Round #59 (Div. 2) | 6 |

387 | Heroes | Codeforces | Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) | 6 |

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

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

390 | Robbery | Codeforces | Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) | 6 |

391 | Hockey | Codeforces | Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) | 6 |

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

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

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

395 | Hiring Staff | Codeforces | Codeforces Round #133 (Div. 2) | 6 |

396 | Reducing Fractions | Codeforces | Codeforces Round #137 (Div. 2) | 6 |

397 | Anagram | Codeforces | Codeforces Round #155 (Div. 2) | 6 |

398 | Below the Diagonal | Codeforces | Codeforces Round #163 (Div. 2) | 6 |

399 | Rectangle Puzzle | Codeforces | Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) | 6 |

400 | Dima and Containers | Codeforces | Codeforces Round #208 (Div. 2) | 6 |

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

402 | Mittens | Codeforces | Codeforces Round #217 (Div. 2) | 6 |

403 | Warrior and Archer | Codeforces | Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) | 6 |

404 | International Olympiad | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 6 |

405 | Chris and Road | Codeforces | Codeforces Round #365 (Div. 2) | 6 |

406 | Commentator problem | Codeforces | Codeforces Beta Round #2 | 7 |

407 | Digital Root | Codeforces | Codeforces Beta Round #10 | 7 |

408 | Sequence of points | Codeforces | Codeforces Beta Round #24 | 7 |

409 | Old Berland Language | Codeforces | Codeforces Beta Round #37 | 7 |

410 | Disposition | Codeforces | Codeforces Beta Round #46 (Div. 2) | 7 |

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

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

413 | Pie or die | Codeforces | Codeforces Beta Round #51 | 7 |

414 | Corporation Mail | Codeforces | Codeforces Beta Round #52 (Div. 2) | 7 |

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

416 | Petya and File System | Codeforces | Codeforces Beta Round #61 (Div. 2) | 7 |

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

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

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

420 | Help Victoria the Wise | Codeforces | Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) | 7 |

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

422 | Geometry Horse | Codeforces | Codeforces Round #115 | 7 |

423 | Try and Catch | Codeforces | Codeforces Round #123 (Div. 2) | 7 |

424 | Football Championship | Codeforces | Codeforces Round #126 (Div. 2) | 7 |

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

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

427 | Students' Revenge | Codeforces | Codeforces Round #193 (Div. 2) | 7 |

428 | Blocked Points | Codeforces | Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) | 7 |

429 | On Number of Decompositions into Multipliers | Codeforces | Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2) | 7 |

430 | Cards | Codeforces | Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) | 7 |

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

432 | How Many Squares? | Codeforces | Codeforces Beta Round #11 | 8 |

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

434 | Deletion of Repeats | Codeforces | Codeforces Beta Round #19 | 8 |

435 | Oranges and Apples | Codeforces | Codeforces Beta Round #23 | 8 |

436 | Parquet | Codeforces | Codeforces Beta Round #26 (Codeforces format) | 8 |

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

438 | Safe cracking | Codeforces | Codeforces Beta Round #41 | 8 |

439 | Crossword | Codeforces | Codeforces Beta Round #44 (Div. 2) | 8 |

440 | The Race | Codeforces | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) | 8 |

441 | Happy Farm 5 | Codeforces | Codeforces Beta Round #47 | 8 |

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

443 | Capture Valerian | Codeforces | Codeforces Beta Round #57 (Div. 2) | 8 |

444 | Game | Codeforces | Codeforces Beta Round #63 (Div. 2) | 8 |

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

446 | Optimal Sum | Codeforces | Codeforces Round #117 (Div. 2) | 8 |

447 | Crosses | Codeforces | Codeforces Round #132 (Div. 2) | 8 |

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

449 | Inna and Candy Boxes | Codeforces | Codeforces Round #229 (Div. 2) | 8 |

450 | Dominoes | Codeforces | Codeforces Round #231 (Div. 2) | 8 |

451 | Bowls | Codeforces | Codeforces Beta Round #36 | 9 |

452 | Berland Square | Codeforces | Codeforces Beta Round #39 | 9 |

453 | Inquisition | Codeforces | Codeforces Beta Round #58 | 9 |

454 | Synchrophasotron | Codeforces | Codeforces Beta Round #62 | 9 |

455 | Item World | Codeforces | Codeforces Beta Round #81 | 9 |

456 | Beautiful Function | Codeforces | Codeforces Round #329 (Div. 2) | 9 |

457 | Fire in the City | Codeforces | Educational Codeforces Round 27 | 9 |

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

459 | Mister B and Boring Game | Codeforces | Codeforces Round #421 (Div. 1) & Codeforces Round #421 (Div. 2) | 9 |

460 | Maze 2D | Codeforces | Coder-Strike 2014 - Round 2 | 9 |