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

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

2 | Expression | Codeforces | Codeforces Round #274 (Div. 2) | 1 |

3 | Sereja and Brackets | Codeforces | Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) | 3 |

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

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

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

7 | XOR on Segment | Codeforces | Codeforces Round #149 (Div. 2) | 4 |

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

9 | Xenia and Tree | Codeforces | Codeforces Round #199 (Div. 2) | 4 |

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

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

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

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

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

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

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

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

18 | XOR and Favorite Number | Codeforces | Codeforces Round #340 (Div. 2) | 4 |

19 | Correct Bracket Sequence Editor | Codeforces | Codeforces Round #350 (Div. 2) | 4 |

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

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

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

23 | Squares and not squares | Codeforces | Codeforces Round #451 (Div. 2) | 4 |

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

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

26 | Subsegments | Codeforces | Codeforces Beta Round #63 (Div. 2) | 5 |

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

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

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

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

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

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

33 | Sausage Maximization | Codeforces | Codeforces Round #173 (Div. 2) | 5 |

34 | Polo the Penguin and XOR operation | Codeforces | Codeforces Round #177 (Div. 1) & Codeforces Round #177 (Div. 2) | 5 |

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

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

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

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

39 | Fox and Card Game | Codeforces | Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) | 5 |

40 | Mashmokh and Reverse Operation | Codeforces | Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) | 5 |

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

42 | Array and Operations | Codeforces | Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) | 5 |

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

44 | Pretty Song | Codeforces | Codeforces Round #289 (Div. 2, ACM ICPC Rules) | 5 |

45 | Soldier and Traveling | Codeforces | Codeforces Round #304 (Div. 2) | 5 |

46 | Case of Chocolate | Codeforces | Codeforces Round #310 (Div. 1) & Codeforces Round #310 (Div. 2) | 5 |

47 | A Simple Task | Codeforces | Codeforces Round #312 (Div. 2) | 5 |

48 | Points on Plane | Codeforces | Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) | 5 |

49 | Duff in the Army | Codeforces | Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) | 5 |

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

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

52 | Little Artem and Time Machine | Codeforces | VK Cup 2016 - Round 2 | 5 |

53 | Sasha and Array | Codeforces | Codeforces Round #373 (Div. 1) & Codeforces Round #373 (Div. 2) | 5 |

54 | Anton and Tree | Codeforces | Codeforces Round #379 (Div. 2) | 5 |

55 | Subordinates | Codeforces | Technocup 2017 - Elimination Round 2 | 5 |

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

57 | Game of Stones | Codeforces | Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) | 5 |

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

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

60 | Underground Lab | Codeforces | ?????????? 2017 - ????? (?????? ??? ??????-??????????) | 5 |

61 | Cards Sorting | Codeforces | Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) | 5 |

62 | Maximize! | Codeforces | Codeforces Round #464 (Div. 2) | 5 |

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

64 | Holes | Codeforces | Codeforces Beta Round #13 | 6 |

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

66 | Test | Codeforces | Codeforces Beta Round #25 (Div. 2 Only) | 6 |

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

68 | 3-cycles | Codeforces | Codeforces Beta Round #40 (Div. 2) | 6 |

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

70 | Time to Raid Cowavans | Codeforces | Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) | 6 |

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

72 | Lucky Permutation | Codeforces | Codeforces Beta Round #91 (Div. 1 Only) & Codeforces Beta Round #91 (Div. 2 Only) | 6 |

73 | Yet Another Task with Queens | Codeforces | Codeforces Beta Round #95 (Div. 2) | 6 |

74 | Zero-One | Codeforces | Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) | 6 |

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

76 | Martian Strings | Codeforces | Codeforces Round #106 (Div. 2) | 6 |

77 | Double Profiles | Codeforces | Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) | 6 |

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

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

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

81 | Partial Sums | Codeforces | Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) | 6 |

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

83 | Triangles | Codeforces | Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) | 6 |

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

85 | Flawed Flow | Codeforces | Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) | 6 |

86 | Beautiful Decomposition | Codeforces | Codeforces Round #171 (Div. 2) | 6 |

87 | Game on Tree | Codeforces | Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) | 6 |

88 | Main Sequence | Codeforces | Codeforces Round #176 (Div. 1) & Codeforces Round #176 (Div. 2) | 6 |

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

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

91 | Number Transformation II | Codeforces | Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) | 6 |

92 | Compartments | Codeforces | Codeforces Round #207 (Div. 1) & Codeforces Round #207 (Div. 2) | 6 |

93 | Sereja and the Arrangement of Numbers | Codeforces | Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) | 6 |

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

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

96 | On Changing Tree | Codeforces | Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2) | 6 |

97 | Strictly Positive Matrix | Codeforces | Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) | 6 |

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

99 | Artem and Array | Codeforces | Codeforces Round #253 (Div. 1) | 6 |

100 | DZY Loves Colors | Codeforces | Codeforces Round #254 (Div. 1) & Codeforces Round #254 (Div. 2) | 6 |

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

102 | Jzzhu and Apples | Codeforces | Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) | 6 |

103 | Devu and Flowers | Codeforces | Codeforces Round #258 (Div. 2) | 6 |

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

105 | Appleman and a Sheet of Paper | Codeforces | Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) | 6 |

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

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

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

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

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

111 | Prefix Product Sequence | Codeforces | Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) | 6 |

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

113 | Vanya and Field | Codeforces | Codeforces Round #280 (Div. 2) | 6 |

114 | Distributing Parts | Codeforces | Codeforces Round #283 (Div. 2) | 6 |

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

116 | Fox And Dinner | Codeforces | Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) | 6 |

117 | Drazil and Park | Codeforces | Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) | 6 |

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

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

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

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

122 | Brackets in Implications | Codeforces | Codeforces Round #306 (Div. 2) | 6 |

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

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

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

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

127 | Kefa and Watch | Codeforces | Codeforces Round #321 (Div. 2) | 6 |

128 | Anton and Ira | Codeforces | Codeforces Round #324 (Div. 2) | 6 |

129 | Lieges of Legendre | Codeforces | Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) | 6 |

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

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

132 | Mike and Geometry Problem | Codeforces | Codeforces Round #361 (Div. 2) | 6 |

133 | PLEASE | Codeforces | Codeforces Round #362 (Div. 1) & Codeforces Round #362 (Div. 2) | 6 |

134 | ZS and The Birthday Paradox | Codeforces | Codeforces Round #369 (Div. 2) | 6 |

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

136 | One-Way Reform | Codeforces | Codeforces Round #375 (Div. 2) | 6 |

137 | Sockets | Codeforces | Codeforces Round #377 (Div. 2) | 6 |

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

139 | Numbers Exchange | Codeforces | Codeforces Round #386 (Div. 2) | 6 |

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

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

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

143 | Dasha and Puzzle | Codeforces | Codeforces Round #394 (Div. 2) | 6 |

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

145 | Tree Folding | Codeforces | Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 6 |

146 | The Holmes Children | Codeforces | ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) | 6 |

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

148 | Ice cream coloring | Codeforces | Codeforces Round #411 (Div. 1) & Codeforces Round #411 (Div. 2) | 6 |

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

150 | DNA Evolution | Codeforces | Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) | 6 |

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

152 | National Property | Codeforces | Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) | 6 |

153 | Bindian Signalizing | Codeforces | Codeforces Beta Round #5 | 7 |

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

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

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

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

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

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

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

161 | Ski Base | Codeforces | Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) | 7 |

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

163 | Double Happiness | Codeforces | Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) | 7 |

164 | Last Chance | Codeforces | Codeforces Beta Round #98 (Div. 2) | 7 |

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

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

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

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

169 | Counter Attack | Codeforces | Codeforces Round #120 (Div. 2) | 7 |

170 | Paint Tree | Codeforces | Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) | 7 |

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

172 | Little Elephant and Furik and Rubik | Codeforces | Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) | 7 |

173 | Little Elephant and Shifts | Codeforces | Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) | 7 |

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

175 | Champions' League | Codeforces | Codeforces Round #145 (Div. 2, ACM-ICPC Rules) | 7 |

176 | Cyclical Quest | Codeforces | Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) | 7 |

177 | Build String | Codeforces | Codeforces Round #147 (Div. 2) | 7 |

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

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

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

181 | Furlo and Rublo and Game | Codeforces | Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) | 7 |

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

183 | Playlist | Codeforces | Codeforces Round #164 (Div. 2) | 7 |

184 | Dima and Horses | Codeforces | Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) | 7 |

185 | Little Girl and Problem on Trees | Codeforces | Codeforces Round #169 (Div. 2) | 7 |

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

187 | Splitting the Uniqueness | Codeforces | Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) | 7 |

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

189 | Minimum Modular | Codeforces | Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) | 7 |

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

191 | Graph Reconstruction | Codeforces | Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) | 7 |

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

193 | Subset Sums | Codeforces | Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) | 7 |

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

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

196 | Subway Innovation | Codeforces | Codeforces Round #218 (Div. 2) | 7 |

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

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

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

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

201 | Curious Array | Codeforces | Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) | 7 |

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

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

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

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

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

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

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

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

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

211 | Tavas and Pashmaks | Codeforces | Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) | 7 |

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

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

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

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

216 | Alice, Bob, Oranges and Apples | Codeforces | Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) | 7 |

217 | Edo and Magnets | Codeforces | Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) | 7 |

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

219 | Freelancer's Dreams | Codeforces | Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) | 7 |

220 | Marbles | Codeforces | Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) | 7 |

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

222 | Necklace | Codeforces | Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) | 7 |

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

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

225 | Levels and Regions | Codeforces | VK Cup 2016 - Round 3 | 7 |

226 | The Last Fight Between Human and AI | Codeforces | Codeforces Round #354 (Div. 2) | 7 |

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

228 | LRU | Codeforces | Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) | 7 |

229 | Working routine | Codeforces | Codeforces Round #367 (Div. 2) | 7 |

230 | Garlands | Codeforces | Codeforces Round #368 (Div. 2) | 7 |

231 | Digit Tree | Codeforces | Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) | 7 |

232 | Funny Game | Codeforces | Codeforces Round #376 (Div. 2) | 7 |

233 | Alyona and towers | Codeforces | Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) | 7 |

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

235 | Bash Plays with Functions | Codeforces | Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) | 7 |

236 | Nikita and stack | Codeforces | 8VC Venture Cup 2017 - Final Round | 7 |

237 | Change-free | Codeforces | Codeforces Round #398 (Div. 2) | 7 |

238 | Anton and Permutation | Codeforces | Codeforces Round #404 (Div. 2) | 7 |

239 | Bear and Company | Codeforces | VK Cup 2017 - Round 1 | 7 |

240 | Till I Collapse | Codeforces | Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) | 7 |

241 | Sagheer and Apple Tree | Codeforces | Codeforces Round #417 (Div. 2) | 7 |

242 | Aquarium decoration | Codeforces | Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) | 7 |

243 | Prairie Partition | Codeforces | VK Cup 2017 - Round 3 | 7 |

244 | Vulnerable Kerbals | Codeforces | VK Cup 2017 - Round 2 | 7 |

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

246 | Points, Lines and Ready-made Titles | Codeforces | Technocup 2018 - Elimination Round 2 | 7 |

247 | The Untended Antiquity | Codeforces | Codeforces Round #439 (Div. 2) | 7 |

248 | Short Code | Codeforces | Codeforces Round #476 (Div. 2) [Thanks, Telegram!] | 7 |

249 | Army Creation | Codeforces | Educational Codeforces Round 22 | 7 |

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

251 | Beads | Codeforces | Codeforces Beta Round #8 | 8 |

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

253 | Greedy Change | Codeforces | Codeforces Beta Round #10 | 8 |

254 | Start of the session | Codeforces | Codeforces Beta Round #12 (Div 2 Only) | 8 |

255 | Palisection | Codeforces | Codeforces Beta Round #17 | 8 |

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

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

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

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

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

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

262 | Collisions | Codeforces | Codeforces Beta Round #34 (Div. 2) | 8 |

263 | Parade | Codeforces | Codeforces Beta Round #35 (Div. 2) | 8 |

264 | Number Table | Codeforces | Codeforces Beta Round #39 | 8 |

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

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

267 | Very simple problem | Codeforces | Codeforces Beta Round #51 | 8 |

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

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

270 | Chip Play | Codeforces | Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) | 8 |

271 | Vectors | Codeforces | Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) | 8 |

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

273 | Plumber | Codeforces | Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) | 8 |

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

275 | E-reader Display | Codeforces | Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) | 8 |

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

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

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

279 | Competition | Codeforces | Codeforces Round #103 (Div. 2) | 8 |

280 | Smart Cheater | Codeforces | Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) | 8 |

281 | Wizards and Numbers | Codeforces | Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) | 8 |

282 | Hamming Distance | Codeforces | Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) | 8 |

283 | Building Forest | Codeforces | Codeforces Round #123 (Div. 2) | 8 |

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

285 | Martian Luck | Codeforces | Codeforces Round #133 (Div. 2) | 8 |

286 | Parking Lot | Codeforces | Codeforces Round #135 (Div. 2) | 8 |

287 | Unsolvable | Codeforces | Codeforces Round #139 (Div. 2) | 8 |

288 | Anniversary | Codeforces | Codeforces Round #140 (Div. 1) & Codeforces Round #140 (Div. 2) | 8 |

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

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

291 | More Queries to Array... | Codeforces | Codeforces Round #163 (Div. 2) | 8 |

292 | Three Horses | Codeforces | Codeforces Round #166 (Div. 2) | 8 |

293 | Game | Codeforces | Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) | 8 |

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

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

296 | Yaroslav and Algorithm | Codeforces | Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) | 8 |

297 | Playing with String | Codeforces | Codeforces Round #184 (Div. 2) | 8 |

298 | Ilya and Two Numbers | Codeforces | Codeforces Round #186 (Div. 2) | 8 |

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

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

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

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

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

304 | Beautiful Set | Codeforces | Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) | 8 |

305 | Dima and Magic Guitar | Codeforces | Codeforces Round #214 (Div. 2) | 8 |

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

307 | Bear in the Field | Codeforces | Codeforces Round #226 (Div. 2) | 8 |

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

309 | Square Tiling | Codeforces | Codeforces Round #246 (Div. 2) | 8 |

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

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

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

313 | Strange Sorting | Codeforces | Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) | 8 |

314 | Vasya and Polynomial | Codeforces | Codeforces Round #281 (Div. 2) | 8 |

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

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

317 | Mike and Friends | Codeforces | Codeforces Round #305 (Div. 1) | 8 |

318 | New Language | Codeforces | Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) | 8 |

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

320 | Superior Periodic Subarrays | Codeforces | Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) | 8 |

321 | Alphabet Permutations | Codeforces | Codeforces Round #337 (Div. 2) | 8 |

322 | Ultimate Weirdness of an Array | Codeforces | Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) | 8 |

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

324 | Alyona and Triangles | Codeforces | Codeforces Round #358 (Div. 2) | 8 |

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

326 | Memory and Casinos | Codeforces | Codeforces Round #370 (Div. 2) | 8 |

327 | Sleep in Class | Codeforces | Codeforces Round #378 (Div. 2) | 8 |

328 | Inversions After Shuffle | Codeforces | Codeforces Round #388 (Div. 2) | 8 |

329 | Timofey and remoduling | Codeforces | Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) | 8 |

330 | Exam Cheating | Codeforces | Codeforces Round #408 (Div. 2) | 8 |

331 | Vladik and Entertaining Flags | Codeforces | Codeforces Round #416 (Div. 2) | 8 |

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

333 | Shortest Path Problem? | Codeforces | Educational Codeforces Round 27 | 8 |

334 | Mother of Dragons | Codeforces | Codeforces Round #428 (Div. 2) | 8 |

335 | The penguin's game | Codeforces | Codeforces Round #427 (Div. 2) | 8 |

336 | Liar | Codeforces | Codeforces Round #422 (Div. 2) | 8 |

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

338 | Nastya and King-Shamans | Codeforces | Codeforces Round #489 (Div. 2) | 8 |

339 | Triangles | Codeforces | Codeforces Beta Round #15 | 9 |

340 | Multithreading | Codeforces | Codeforces Beta Round #26 (Codeforces format) | 9 |

341 | Hide-and-Seek | Codeforces | Codeforces Beta Round #32 (Div. 2, Codeforces format) | 9 |

342 | Two Paths | Codeforces | Codeforces Beta Round #36 | 9 |

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

344 | Race | Codeforces | Codeforces Beta Round #42 (Div. 2) | 9 |

345 | Cannon | Codeforces | Codeforces Beta Round #44 (Div. 2) | 9 |

346 | Ivan the Fool VS Gorynych the Dragon | Codeforces | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) | 9 |

347 | Square Equation Roots | Codeforces | Codeforces Beta Round #47 | 9 |

348 | Pentagon | Codeforces | Codeforces Beta Round #48 | 9 |

349 | Mushroom Gnomes | Codeforces | Codeforces Beta Round #56 | 9 |

350 | Information Reform | Codeforces | Codeforces Beta Round #64 | 9 |

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

352 | Morrowindows | Codeforces | Codeforces Beta Round #66 | 9 |

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

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

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

356 | Azembler | Codeforces | Codeforces Beta Round #76 (Div. 1 Only) & Codeforces Beta Round #76 (Div. 2 Only) | 9 |

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

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

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

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

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

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

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

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

365 | Transportation | Codeforces | Codeforces Round #128 (Div. 2) | 9 |

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

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

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

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

370 | Greedy Elevator | Codeforces | Codeforces Round #159 (Div. 2) | 9 |

371 | Rhombus | Codeforces | Codeforces Round #161 (Div. 2) | 9 |

372 | The Last Hole! | Codeforces | Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) | 9 |

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

374 | Binary Key | Codeforces | Codeforces Round #193 (Div. 2) | 9 |

375 | Lucky Tickets | Codeforces | Codeforces Round #194 (Div. 1) & Codeforces Round #194 (Div. 2) | 9 |

376 | Dima and Kicks | Codeforces | Codeforces Round #208 (Div. 2) | 9 |

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

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

379 | Ksenia and Combinatorics | Codeforces | Codeforces Round #224 (Div. 2) | 9 |

380 | Inna and Large Sweet Matrix | Codeforces | Codeforces Round #229 (Div. 2) | 9 |

381 | Yet Another Number Sequence | Codeforces | Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) | 9 |

382 | Tree and Array | Codeforces | Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) | 9 |

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

384 | Tachibana Kanade's Tofu | Codeforces | Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) | 9 |

385 | Special Graph | Codeforces | Codeforces Round #249 (Div. 2) | 9 |

386 | Valera and Number | Codeforces | Codeforces Round #252 (Div. 2) | 9 |

387 | Roland and Rose | Codeforces | Codeforces Round #262 (Div. 2) | 9 |

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

389 | Berland Local Positioning System | Codeforces | Codeforces Round #298 (Div. 2) | 9 |

390 | Strange Calculation and Cats | Codeforces | Codeforces Round #329 (Div. 2) | 9 |

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

392 | Sandy and Nuts | Codeforces | Codeforces Round #332 (Div. 2) | 9 |

393 | Runaway to a Shadow | Codeforces | Codeforces Round #357 (Div. 2) | 9 |

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

395 | Black Widow | Codeforces | Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) | 9 |

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

397 | Dasha and cyclic table | Codeforces | Codeforces Round #390 (Div. 2) | 9 |

398 | Broken Tree | Codeforces | Codeforces Round #392 (Div. 2) | 9 |

399 | Choosing Carrot | Codeforces | Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) | 9 |

400 | Mike and code of a permutation | Codeforces | Codeforces Round #410 (Div. 2) | 9 |

401 | Ever-Hungry Krakozyabra | Codeforces | Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) | 9 |

402 | Vasya and Shifts | Codeforces | Codeforces Round #425 (Div. 2) | 9 |

403 | Awards For Contestants | Codeforces | Educational Codeforces Round 30 | 9 |

404 | Policeman and a Tree | Codeforces | Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 9 |

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

406 | DravDe saves the world | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 10 |

407 | Helper | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 10 |

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

409 | Vacuum ?leaner | Codeforces | Codeforces Beta Round #50 | 10 |

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

411 | Expression | Codeforces | Codeforces Beta Round #54 (Div. 2) | 10 |

412 | World Evil | Codeforces | Codeforces Beta Round #58 | 10 |

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

414 | Contact | Codeforces | Codeforces Beta Round #62 | 10 |

415 | Shift It! | Codeforces | Codeforces Beta Round #68 | 10 |

416 | Security System | Codeforces | Codeforces Beta Round #71 | 10 |

417 | Lift and Throw | Codeforces | Codeforces Beta Round #81 | 10 |

418 | Lucky Interval | Codeforces | Codeforces Beta Round #84 (Div. 1 Only) | 10 |

419 | Tree or not Tree | Codeforces | Codeforces Beta Round #88 | 10 |

420 | Alternative Reality | Codeforces | Codeforces Beta Round #90 | 10 |

421 | Clever Fat Rat | Codeforces | Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) | 10 |

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

423 | Vasily the Bear and Painting Square | Codeforces | Codeforces Round #195 (Div. 2) | 10 |

424 | Two Circles | Codeforces | Codeforces Round #211 (Div. 2) | 10 |

425 | Summer Reading | Codeforces | Codeforces Round #217 (Div. 2) | 10 |

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

427 | Lightbulb for Minister | Codeforces | Codeforces Round #231 (Div. 2) | 10 |

428 | Olympic Games | Codeforces | Codeforces Round #235 (Div. 2) | 10 |

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

430 | DZY Loves Bridges | Codeforces | Codeforces Round #255 (Div. 1) | 10 |

431 | MUH and Lots and Lots of Segments | Codeforces | Codeforces Round #269 (Div. 2) | 10 |

432 | Design Tutorial: Learn from a Game | Codeforces | Codeforces Round #270 | 10 |

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

434 | Kojiro and Furrari | Codeforces | Codeforces Round #322 (Div. 2) | 10 |

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

436 | Frog Fights | Codeforces | Codeforces Round #342 (Div. 2) | 10 |

437 | To Hack or not to Hack | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 10 |

438 | Chain Reaction | Codeforces | Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) | 10 |

439 | Mister B and Beacons on Field | Codeforces | Codeforces Round #421 (Div. 1) & Codeforces Round #421 (Div. 2) | 10 |