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

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

2 | Winner | Codeforces | Codeforces Beta Round #2 | 1 | |

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

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

5 | Triangle | Codeforces | Codeforces Beta Round #6 (Div. 2 Only) | 1 | |

6 | Die Roll | Codeforces | Codeforces Beta Round #9 (Div. 2 Only) | 1 | |

7 | IQ test | Codeforces | Codeforces Beta Round #25 (Div. 2 Only) | 1 | |

8 | Almost Prime | Codeforces | Codeforces Beta Round #26 (Codeforces format) | 1 | |

9 | Reconnaissance 2 | Codeforces | Codeforces Beta Round #34 (Div. 2) | 1 | |

10 | Towers | Codeforces | Codeforces Beta Round #37 | 1 | |

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

12 | Translation | Codeforces | Codeforces Beta Round #40 (Div. 2) | 1 | |

13 | Football | Codeforces | Codeforces Beta Round #42 (Div. 2) | 1 | |

14 | Domino piling | Codeforces | Codeforces Beta Round #47 | 1 | |

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

16 | Word | Codeforces | Codeforces Beta Round #55 (Div. 2) | 1 | |

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

18 | Young Physicist | Codeforces | Codeforces Beta Round #63 (Div. 2) | 1 | |

19 | Way Too Long Words | Codeforces | Codeforces Beta Round #65 (Div. 2) | 1 | |

20 | Life Without Zeros | Codeforces | Codeforces Beta Round #67 (Div. 2) | 1 | |

21 | Panoramix's Prediction | Codeforces | Codeforces Beta Round #69 (Div. 2 Only) | 1 | |

22 | Toy Army | Codeforces | Codeforces Beta Round #72 (Div. 2 Only) | 1 | |

23 | Chips | Codeforces | Codeforces Beta Round #75 (Div. 2 Only) | 1 | |

24 | Football | Codeforces | Codeforces Beta Round #77 (Div. 2 Only) | 1 | |

25 | Nearly Lucky Number | Codeforces | Codeforces Beta Round #84 (Div. 2 Only) | 1 | |

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

27 | Cifera | Codeforces | Codeforces Beta Round #86 (Div. 2 Only) | 1 | |

28 | Tram | Codeforces | Codeforces Beta Round #87 (Div. 2 Only) | 1 | |

29 | String Task | Codeforces | Codeforces Beta Round #89 (Div. 2) | 1 | |

30 | Epic Game | Codeforces | Codeforces Beta Round #90 | 1 | |

31 | Lucky Division | Codeforces | Codeforces Beta Round #91 (Div. 2 Only) | 1 | |

32 | The number of positions | Codeforces | Codeforces Beta Round #92 (Div. 2 Only) | 1 | |

33 | Cookies | Codeforces | Codeforces Beta Round #94 (Div. 2 Only) | 1 | |

34 | cAPS lOCK | Codeforces | Codeforces Beta Round #95 (Div. 2) | 1 | |

35 | HQ9+ | Codeforces | Codeforces Beta Round #96 (Div. 2) | 1 | |

36 | Presents | Codeforces | Codeforces Beta Round #97 (Div. 2) | 1 | |

37 | Petr and Book | Codeforces | Codeforces Beta Round #99 (Div. 2) | 1 | |

38 | Amusing Joke | Codeforces | Codeforces Round #101 (Div. 2) | 1 | |

39 | Arrival of the General | Codeforces | Codeforces Round #103 (Div. 2) | 1 | |

40 | Lucky Ticket | Codeforces | Codeforces Round #104 (Div. 2) | 1 | |

41 | Insomnia cure | Codeforces | Codeforces Round #105 (Div. 2) | 1 | |

42 | Business trip | Codeforces | Codeforces Round #106 (Div. 2) | 1 | |

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

44 | Marks | Codeforces | Codeforces Round #108 (Div. 2) | 1 | |

45 | I_love_\%username\% | Codeforces | Codeforces Round #109 (Div. 2) | 1 | |

46 | Twins | Codeforces | Codeforces Round #111 (Div. 2) | 1 | |

47 | Supercentral Point | Codeforces | Codeforces Round #112 (Div. 2) | 1 | |

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

49 | Hexadecimal's theorem | Codeforces | Codeforces Round #125 (Div. 2) | 1 | |

50 | Dubstep | Codeforces | Codeforces Round #130 (Div. 2) | 1 | |

51 | System of Equations | Codeforces | Codeforces Round #131 (Div. 2) | 1 | |

52 | k-String | Codeforces | Codeforces Round #135 (Div. 2) | 1 | |

53 | Parallelepiped | Codeforces | Codeforces Round #138 (Div. 2) | 1 | |

54 | Is your horseshoe on the other hoof? | Codeforces | Codeforces Round #141 (Div. 2) | 1 | |

55 | Dragons | Codeforces | Codeforces Round #142 (Div. 2) | 1 | |

56 | Team | Codeforces | Codeforces Round #143 (Div. 2) | 1 | |

57 | Perfect Permutation | Codeforces | Codeforces Round #144 (Div. 2) | 1 | |

58 | Boy or Girl | Codeforces | Codeforces Round #146 (Div. 2) | 1 | |

59 | Free Cash | Codeforces | Codeforces Round #147 (Div. 2) | 1 | |

60 | Greg's Workout | Codeforces | Codeforces Round #156 (Div. 2) | 1 | |

61 | Roma and Lucky Numbers | Codeforces | Codeforces Round #160 (Div. 2) | 1 | |

62 | Beautiful Matrix | Codeforces | Codeforces Round #161 (Div. 2) | 1 | |

63 | Colorful Stones (Simplified Edition) | Codeforces | Codeforces Round #162 (Div. 2) | 1 | |

64 | Stones on the Table | Codeforces | Codeforces Round #163 (Div. 2) | 1 | |

65 | Games | Codeforces | Codeforces Round #164 (Div. 2) | 1 | |

66 | Fancy Fence | Codeforces | Codeforces Round #165 (Div. 2) | 1 | |

67 | Beautiful Year | Codeforces | Codeforces Round #166 (Div. 2) | 1 | |

68 | Dima and Friends | Codeforces | Codeforces Round #167 (Div. 2) | 1 | |

69 | Lights Out | Codeforces | Codeforces Round #168 (Div. 2) | 1 | |

70 | Lunch Rush | Codeforces | Codeforces Round #169 (Div. 2) | 1 | |

71 | Circle Line | Codeforces | Codeforces Round #170 (Div. 2) | 1 | |

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

73 | Bit++ | Codeforces | Codeforces Round #173 (Div. 2) | 1 | |

74 | Slightly Decreasing Permutations | Codeforces | Codeforces Round #175 (Div. 2) | 1 | |

75 | Shaass and Oskols | Codeforces | Codeforces Round #178 (Div. 2) | 1 | |

76 | Array | Codeforces | Codeforces Round #181 (Div. 2) | 1 | |

77 | Ilya and Bank Account | Codeforces | Codeforces Round #186 (Div. 2) | 1 | |

78 | Even Odds | Codeforces | Codeforces Round #188 (Div. 2) | 1 | |

79 | Magic Numbers | Codeforces | Codeforces Round #189 (Div. 2) | 1 | |

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

81 | Cakeminator | Codeforces | Codeforces Round #192 (Div. 2) | 1 | |

82 | Candy Bags | Codeforces | Codeforces Round #194 (Div. 2) | 1 | |

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

84 | Helpful Maths | Codeforces | Codeforces Round #197 (Div. 2) | 1 | |

85 | Magnets | Codeforces | Codeforces Round #200 (Div. 2) | 1 | |

86 | Cinema Line | Codeforces | Codeforces Round #202 (Div. 2) | 1 | |

87 | TL | Codeforces | Codeforces Round #203 (Div. 2) | 1 | |

88 | Jeff and Digits | Codeforces | Codeforces Round #204 (Div. 2) | 1 | |

89 | Domino | Codeforces | Codeforces Round #205 (Div. 2) | 1 | |

90 | Valera and Plates | Codeforces | Codeforces Round #216 (Div. 2) | 1 | |

91 | Playing with Dice | Codeforces | Codeforces Round #222 (Div. 2) | 1 | |

92 | Sereja and Dima | Codeforces | Codeforces Round #223 (Div. 2) | 1 | |

93 | Coder | Codeforces | Codeforces Round #225 (Div. 2) | 1 | |

94 | Bear and Raspberry | Codeforces | Codeforces Round #226 (Div. 2) | 1 | |

95 | Fox and Number Game | Codeforces | Codeforces Round #228 (Div. 2) | 1 | |

96 | Vanya and Cards | Codeforces | Codeforces Round #235 (Div. 2) | 1 | |

97 | Valera and X | Codeforces | Codeforces Round #237 (Div. 2) | 1 | |

98 | Gravity Flip | Codeforces | Codeforces Round #238 (Div. 2) | 1 | |

99 | Police Recruits | Codeforces | Codeforces Round #244 (Div. 2) | 1 | |

100 | Choosing Teams | Codeforces | Codeforces Round #246 (Div. 2) | 1 | |

101 | Black Square | Codeforces | Codeforces Round #247 (Div. 2) | 1 | |

102 | Queue on Bus Stop | Codeforces | Codeforces Round #249 (Div. 2) | 1 | |

103 | Devu, the Singer and Churu, the Joker | Codeforces | Codeforces Round #251 (Div. 2) | 1 | |

104 | Valera and Antique Items | Codeforces | Codeforces Round #252 (Div. 2) | 1 | |

105 | Anton and Letters | Codeforces | Codeforces Round #253 (Div. 2) | 1 | |

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

107 | Rewards | Codeforces | Codeforces Round #256 (Div. 2) | 1 | |

108 | Jzzhu and Children | Codeforces | Codeforces Round #257 (Div. 2) | 1 | |

109 | Game With Sticks | Codeforces | Codeforces Round #258 (Div. 2) | 1 | |

110 | Little Pony and Crystal Mine | Codeforces | Codeforces Round #259 (Div. 2) | 1 | |

111 | Laptops | Codeforces | Codeforces Round #260 (Div. 2) | 1 | |

112 | Pashmak and Garden | Codeforces | Codeforces Round #261 (Div. 2) | 1 | |

113 | Vasya and Socks | Codeforces | Codeforces Round #262 (Div. 2) | 1 | |

114 | Appleman and Easy Task | Codeforces | Codeforces Round #263 (Div. 2) | 1 | |

115 | Caisa and Sugar | Codeforces | Codeforces Round #264 (Div. 2) | 1 | |

116 | inc ARG | Codeforces | Codeforces Round #265 (Div. 2) | 1 | |

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

118 | George and Accommodation | Codeforces | Codeforces Round #267 (Div. 2) | 1 | |

119 | I Wanna Be the Guy | Codeforces | Codeforces Round #268 (Div. 2) | 1 | |

120 | MUH and Sticks | Codeforces | Codeforces Round #269 (Div. 2) | 1 | |

121 | Design Tutorial: Learn from Math | Codeforces | Codeforces Round #270 | 1 | |

122 | Keyboard | Codeforces | Codeforces Round #271 (Div. 2) | 1 | |

123 | Dreamoon and Stairs | Codeforces | Codeforces Round #272 (Div. 2) | 1 | |

124 | Initial Bet | Codeforces | Codeforces Round #273 (Div. 2) | 1 | |

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

126 | Counterexample | Codeforces | Codeforces Round #275 (Div. 2) | 1 | |

127 | Calculating Function | Codeforces | Codeforces Round #277 (Div. 2) | 1 | |

128 | Giga Tower | Codeforces | Codeforces Round #278 (Div. 2) | 1 | |

129 | Team Olympiad | Codeforces | Codeforces Round #279 (Div. 2) | 1 | |

130 | Vanya and Cubes | Codeforces | Codeforces Round #280 (Div. 2) | 1 | |

131 | Minimum Difficulty | Codeforces | Codeforces Round #283 (Div. 2) | 1 | |

132 | Watching a movie | Codeforces | Codeforces Round #284 (Div. 2) | 1 | |

133 | Contest | Codeforces | Codeforces Round #285 (Div. 2) | 1 | |

134 | Amr and Music | Codeforces | Codeforces Round #287 (Div. 2) | 1 | |

135 | Maximum in Table | Codeforces | Codeforces Round #289 (Div. 2, ACM ICPC Rules) | 1 | |

136 | Fox And Snake | Codeforces | Codeforces Round #290 (Div. 2) | 1 | |

137 | Chewba?ca and Number | Codeforces | Codeforces Round #291 (Div. 2) | 1 | |

138 | Drazil and Date | Codeforces | Codeforces Round #292 (Div. 2) | 1 | |

139 | A and B and Chess | Codeforces | Codeforces Round #294 (Div. 2) | 1 | |

140 | Pangram | Codeforces | Codeforces Round #295 (Div. 2) | 1 | |

141 | Playing with Paper | Codeforces | Codeforces Round #296 (Div. 2) | 1 | |

142 | Vitaliy and Pie | Codeforces | Codeforces Round #297 (Div. 2) | 1 | |

143 | Exam | Codeforces | Codeforces Round #298 (Div. 2) | 1 | |

144 | Tavas and Nafas | Codeforces | Codeforces Round #299 (Div. 2) | 1 | |

145 | Combination Lock | Codeforces | Codeforces Round #301 (Div. 2) | 1 | |

146 | Toy Cars | Codeforces | Codeforces Round #303 (Div. 2) | 1 | |

147 | Soldier and Bananas | Codeforces | Codeforces Round #304 (Div. 2) | 1 | |

148 | Mike and Fax | Codeforces | Codeforces Round #305 (Div. 2) | 1 | |

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

150 | GukiZ and Contest | Codeforces | Codeforces Round #307 (Div. 2) | 1 | |

151 | Vanya and Table | Codeforces | Codeforces Round #308 (Div. 2) | 1 | |

152 | Kyoya and Photobooks | Codeforces | Codeforces Round #309 (Div. 2) | 1 | |

153 | Case of the Zeros and Ones | Codeforces | Codeforces Round #310 (Div. 2) | 1 | |

154 | Ilya and Diplomas | Codeforces | Codeforces Round #311 (Div. 2) | 1 | |

155 | Lala Land and Apple Trees | Codeforces | Codeforces Round #312 (Div. 2) | 1 | |

156 | Currency System in Geraldion | Codeforces | Codeforces Round #313 (Div. 2) | 1 | |

157 | Lineland Mail | Codeforces | Codeforces Round #Pi (Div. 2) | 1 | |

158 | Elections | Codeforces | Codeforces Round #316 (Div. 2) | 1 | |

159 | Arrays | Codeforces | Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) | 1 | |

160 | Bear and Elections | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) | 1 | |

161 | Multiplication Table | Codeforces | Codeforces Round #319 (Div. 2) | 1 | |

162 | Raising Bacteria | Codeforces | Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] | 1 | |

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

164 | Vasya the Hipster | Codeforces | Codeforces Round #322 (Div. 2) | 1 | |

165 | Asphalting Roads | Codeforces | Codeforces Round #323 (Div. 2) | 1 | |

166 | Olesya and Rodion | Codeforces | Codeforces Round #324 (Div. 2) | 1 | |

167 | Alena's Schedule | Codeforces | Codeforces Round #325 (Div. 2) | 1 | |

168 | Duff and Meat | Codeforces | Codeforces Round #326 (Div. 2) | 1 | |

169 | Wizards' Duel | Codeforces | Codeforces Round #327 (Div. 2) | 1 | |

170 | Vitaly and Night | Codeforces | Codeforces Round #330 (Div. 2) | 1 | |

171 | Patrick and Shopping | Codeforces | Codeforces Round #332 (Div. 2) | 1 | |

172 | Two Bases | Codeforces | Codeforces Round #333 (Div. 2) | 1 | |

173 | Uncowed Forces | Codeforces | Codeforces Round #334 (Div. 2) | 1 | |

174 | Pasha and Stick | Codeforces | Codeforces Round #337 (Div. 2) | 1 | |

175 | Bulbs | Codeforces | Codeforces Round #338 (Div. 2) | 1 | |

176 | Elephant | Codeforces | Codeforces Round #340 (Div. 2) | 1 | |

177 | Wet Shark and Odd and Even | Codeforces | Codeforces Round #341 (Div. 2) | 1 | |

178 | Far Relative’s Birthday Cake | Codeforces | Codeforces Round #343 (Div. 2) | 1 | |

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

180 | Round House | Codeforces | Codeforces Round #346 (Div. 2) | 1 | |

181 | Complicated GCD | Codeforces | Codeforces Round #347 (Div. 2) | 1 | |

182 | Holidays | Codeforces | Codeforces Round #350 (Div. 2) | 1 | |

183 | Summer Camp | Codeforces | Codeforces Round #352 (Div. 2) | 1 | |

184 | Infinite Sequence | Codeforces | Codeforces Round #353 (Div. 2) | 1 | |

185 | Nicholas and Permutation | Codeforces | Codeforces Round #354 (Div. 2) | 1 | |

186 | Vanya and Fence | Codeforces | Codeforces Round #355 (Div. 2) | 1 | |

187 | Bear and Five Cards | Codeforces | Codeforces Round #356 (Div. 2) | 1 | |

188 | A Good Contest | Codeforces | Codeforces Round #357 (Div. 2) | 1 | |

189 | Alyona and Numbers | Codeforces | Codeforces Round #358 (Div. 2) | 1 | |

190 | Free Ice Cream | Codeforces | Codeforces Round #359 (Div. 2) | 1 | |

191 | Opponents | Codeforces | Codeforces Round #360 (Div. 2) | 1 | |

192 | Pineapple Incident | Codeforces | Codeforces Round #362 (Div. 2) | 1 | |

193 | Launch of Collider | Codeforces | Codeforces Round #363 (Div. 2) | 1 | |

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

195 | Mishka and Game | Codeforces | Codeforces Round #365 (Div. 2) | 1 | |

196 | Hulk | Codeforces | Codeforces Round #366 (Div. 2) | 1 | |

197 | Beru-taxi | Codeforces | Codeforces Round #367 (Div. 2) | 1 | |

198 | Brain's Photos | Codeforces | Codeforces Round #368 (Div. 2) | 1 | |

199 | Bus to Udayland | Codeforces | Codeforces Round #369 (Div. 2) | 1 | |

200 | Memory and Crow | Codeforces | Codeforces Round #370 (Div. 2) | 1 | |

201 | Meeting of Old Friends | Codeforces | Codeforces Round #371 (Div. 2) | 1 | |

202 | Crazy Computer | Codeforces | Codeforces Round #372 (Div. 2) | 1 | |

203 | Vitya in the Countryside | Codeforces | Codeforces Round #373 (Div. 2) | 1 | |

204 | One-dimensional Japanese Crossword | Codeforces | Codeforces Round #374 (Div. 2) | 1 | |

205 | The New Year: Meeting Friends | Codeforces | Codeforces Round #375 (Div. 2) | 1 | |

206 | Buy a Shovel | Codeforces | Codeforces Round #377 (Div. 2) | 1 | |

207 | Night at the Museum | Codeforces | Codeforces Round #376 (Div. 2) | 1 | |

208 | Grasshopper And the String | Codeforces | Codeforces Round #378 (Div. 2) | 1 | |

209 | Spreadsheet | Codeforces | Codeforces Beta Round #1 | 1 | |

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

211 | Ostap and Grasshopper | Codeforces | Codeforces Round #382 (Div. 2) | 1 | |

212 | Arpa’s hard exam and Mehrdad’s naive cheat | Codeforces | Codeforces Round #383 (Div. 2) | 1 | |

213 | Balloons Colors | A2 Online Judge | 1 | ||

214 | Bachgold Problem | Codeforces | Codeforces Round #388 (Div. 2) | 1 | |

215 | Compote | Codeforces | Codeforces Round #386 (Div. 2) | 1 | |

216 | Hongcow Learns the Cyclic Shift | Codeforces | Codeforces Round #385 (Div. 2) | 1 | |

217 | Vladik and flights | Codeforces | Codeforces Round #384 (Div. 2) | 1 | |

218 | Primary Arithmetic | UVA | 1 | ||

219 | Gotta Catch Em' All! | Codeforces | Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) | 1 | |

220 | Dasha and Stairs | Codeforces | Codeforces Round #394 (Div. 2) | 1 | |

221 | Holiday Of Equality | Codeforces | Codeforces Round #392 (Div. 2) | 1 | |

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

223 | Mahmoud and Longest Uncommon Subsequence | Codeforces | Codeforces Round #396 (Div. 2) | 1 | |

224 | Taymyr is calling you | Codeforces | Codeforces Round #395 (Div. 2) | 1 | |

225 | Snacktower | Codeforces | Codeforces Round #398 (Div. 2) | 1 | |

226 | Oath of the Night's Watch | Codeforces | Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) | 1 | |

227 | A Serial Killer | Codeforces | ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) | 1 | |

228 | Shell Game | Codeforces | Codeforces Round #401 (Div. 2) | 1 | |

229 | Pupils Redistribution | Codeforces | Codeforces Round #402 (Div. 2) | 1 | |

230 | Andryusha and Socks | Codeforces | ?????????? 2017 - ????? (?????? ??? ??????-??????????) | 1 | |

231 | Anton and Polyhedrons | Codeforces | Codeforces Round #404 (Div. 2) | 1 | |

232 | Bear and Big Brother | Codeforces | Codeforces Round #405 (rated, Div. 2, based on VK Cup 2017 Round 1) | 1 | |

233 | The Monster | Codeforces | Codeforces Round #406 (Div. 2) | 1 | |

234 | Anastasia and pebbles | Codeforces | Codeforces Round #407 (Div. 2) | 1 | |

235 | Buying A House | Codeforces | Codeforces Round #408 (Div. 2) | 1 | |

236 | Nth Smallest Value | A2 Online Judge | 1 | ||

237 | Vladik and Courtesy | Codeforces | Codeforces Round #416 (Div. 2) | 1 | |

238 | Fake NP | Codeforces | Codeforces Round #411 (Div. 2) | 1 | |

239 | Mike and palindrome | Codeforces | Codeforces Round #410 (Div. 2) | 1 | |

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

241 | Generous Kefa | Codeforces | Codeforces Round #429 (Div. 2) | 1 | |

242 | Arya and Bran | Codeforces | Codeforces Round #428 (Div. 2) | 1 | |

243 | Key races | Codeforces | Codeforces Round #427 (Div. 2) | 1 | |

244 | The Useless Toy | Codeforces | Codeforces Round #426 (Div. 2) | 1 | |

245 | Sasha and Sticks | Codeforces | Codeforces Round #425 (Div. 2) | 1 | |

246 | Unimodal Array | Codeforces | Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) | 1 | |

247 | I'm bored with life | Codeforces | Codeforces Round #422 (Div. 2) | 1 | |

248 | Karen and Morning | Codeforces | Codeforces Round #419 (Div. 2) | 1 | |

249 | An abandoned sentiment from past | Codeforces | Codeforces Round #418 (Div. 2) | 1 | |

250 | Fair Game | Codeforces | Codeforces Round #436 (Div. 2) | 1 | |

251 | Prime Permutations | CodeChef | 1 | ||

252 | Trip For Meal | Codeforces | Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) | 1 | |

253 | Search for Pretty Integers | Codeforces | Technocup 2018 - Elimination Round 2 | 1 | |

254 | The Artful Expedient | Codeforces | Codeforces Round #439 (Div. 2) | 1 | |

255 | Rounding | Codeforces | Codeforces Round #451 (Div. 2) | 1 | |

256 | Cloning Toys | Codeforces | Codeforces Round #461 (Div. 2) | 1 | |

257 | Jamie and Alarm Snooze | Codeforces | Codeforces Round #457 (Div. 2) | 1 | |

258 | Love Triangle | Codeforces | Codeforces Round #464 (Div. 2) | 1 | |

259 | Relational Operators | Live Archive | 2009 | Asia - Phuket | 1 |

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

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

262 | Rare Order | UVA | 1 | ||

263 | Simple Game | Codeforces | Codeforces Round #316 (Div. 2) | 1 | |

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

265 | Maximum Increase | Codeforces | Educational Codeforces Round 15 | 1 | |

266 | USB Flash Drives | Codeforces | Educational Codeforces Round 3 | 1 | |

267 | Heist | Codeforces | Codeforces Round #509 (Div. 2) | 1 | |

268 | Sum of Consecutive Prime Numbers | Live Archive | 2005 | Asia - Tokyo | 1 |

269 | Chat Servers Outgoing Traffic | Codeforces | Codeforces Beta Round #5 | 2 | |

270 | Flag | Codeforces | Codeforces Beta Round #16 (Div. 2 Only) | 2 | |

271 | Second Order Statistics | Codeforces | Codeforces Beta Round #22 (Div. 2 Only) | 2 | |

272 | Next Test | Codeforces | Codeforces Beta Round #27 (Codeforces format, Div. 2) | 2 | |

273 | Triangular numbers | Codeforces | Codeforces Beta Round #44 (Div. 2) | 2 | |

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

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

276 | Blackjack | Codeforces | Codeforces Beta Round #80 (Div. 2 Only) | 2 | |

277 | Palindromic Times | Codeforces | Codeforces Beta Round #83 (Div. 2 Only) | 2 | |

278 | Wasted Time | Codeforces | Codeforces Beta Round #93 (Div. 2 Only) | 2 | |

279 | Help Vasilisa the Wise 2 | Codeforces | Codeforces Round #102 (Div. 2) | 2 | |

280 | Game Outcome | Codeforces | Codeforces Round #110 (Div. 2) | 2 | |

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

282 | Wizards and Demonstration | Codeforces | Codeforces Round #114 (Div. 2) | 2 | |

283 | Comparing Strings | Codeforces | Codeforces Round #118 (Div. 2) | 2 | |

284 | Little Elephant and Rozdil | Codeforces | Codeforces Round #129 (Div. 2) | 2 | |

285 | Bicycle Chain | Codeforces | Codeforces Round #132 (Div. 2) | 2 | |

286 | Little Elephant and Function | Codeforces | Codeforces Round #136 (Div. 2) | 2 | |

287 | Shooshuns and Sequence | Codeforces | Codeforces Round #137 (Div. 2) | 2 | |

288 | Two Bags of Potatoes | Codeforces | Codeforces Round #148 (Div. 2) | 2 | |

289 | Buggy Sorting | Codeforces | Codeforces Round #151 (Div. 2) | 2 | |

290 | Cupboards | Codeforces | Codeforces Round #152 (Div. 2) | 2 | |

291 | Boys and Girls | Codeforces | Codeforces Round #154 (Div. 2) | 2 | |

292 | Little Elephant and Chess | Codeforces | Codeforces Round #157 (Div. 2) | 2 | |

293 | Adding Digits | Codeforces | Codeforces Round #158 (Div. 2) | 2 | |

294 | IQ Test | Codeforces | Codeforces Round #176 (Div. 2) | 2 | |

295 | Yaroslav and Permutations | Codeforces | Codeforces Round #179 (Div. 2) | 2 | |

296 | Eugeny and Array | Codeforces | Codeforces Round #182 (Div. 2) | 2 | |

297 | Ciel and Dancing | Codeforces | Codeforces Round #190 (Div. 2) | 2 | |

298 | Vasily the Bear and Triangle | Codeforces | Codeforces Round #195 (Div. 2) | 2 | |

299 | The Wall | Codeforces | Codeforces Round #198 (Div. 2) | 2 | |

300 | Xenia and Divisors | Codeforces | Codeforces Round #199 (Div. 2) | 2 | |

301 | Difference Row | Codeforces | Codeforces Round #201 (Div. 2) | 2 | |

302 | Vasya and Digital Root | Codeforces | Codeforces Round #206 (Div. 2) | 2 | |

303 | Group of Students | Codeforces | Codeforces Round #207 (Div. 2) | 2 | |

304 | Dima and Continuous Line | Codeforces | Codeforces Round #208 (Div. 2) | 2 | |

305 | Table | Codeforces | Codeforces Round #209 (Div. 2) | 2 | |

306 | Levko and Table | Codeforces | Codeforces Round #210 (Div. 2) | 2 | |

307 | Soroban | Codeforces | Codeforces Round #211 (Div. 2) | 2 | |

308 | Good Number | Codeforces | Codeforces Round #213 (Div. 2) | 2 | |

309 | Sereja and Coat Rack | Codeforces | Codeforces Round #215 (Div. 2) | 2 | |

310 | Collecting Beats is Fun | Codeforces | Codeforces Round #219 (Div. 2) | 2 | |

311 | Lever | Codeforces | Codeforces Round #221 (Div. 2) | 2 | |

312 | Ksenia and Pan Scales | Codeforces | Codeforces Round #224 (Div. 2) | 2 | |

313 | George and Sleep | Codeforces | Codeforces Round #227 (Div. 2) | 2 | |

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

315 | Line to Cashier | Codeforces | Codeforces Round #239 (Div. 2) | 2 | |

316 | Mashmokh and Lights | Codeforces | Codeforces Round #240 (Div. 2) | 2 | |

317 | Squats | Codeforces | Codeforces Round #242 (Div. 2) | 2 | |

318 | Sereja and Mugs | Codeforces | Codeforces Round #243 (Div. 2) | 2 | |

319 | Kitahara Haruki's Gift | Codeforces | Codeforces Round #248 (Div. 2) | 2 | |

320 | The Child and Homework | Codeforces | Codeforces Round #250 (Div. 2) | 2 | |

321 | DZY Loves Hash | Codeforces | Codeforces Round #255 (Div. 2) | 2 | |

322 | Factory | Codeforces | Codeforces Round #276 (Div. 2) | 2 | |

323 | SwapSort | Codeforces | Codeforces Round #277.5 (Div. 2) | 2 | |

324 | Vasya and Football | Codeforces | Codeforces Round #281 (Div. 2) | 2 | |

325 | Digital Counter | Codeforces | Codeforces Round #282 (Div. 2) | 2 | |

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

327 | Pasha and Pixels | Codeforces | Codeforces Round #288 (Div. 2) | 2 | |

328 | Vitaly and Strings | Codeforces | Codeforces Round #293 (Div. 2) | 2 | |

329 | Cutting Banner | Codeforces | Codeforces Round #300 | 2 | |

330 | Set of Strings | Codeforces | Codeforces Round #302 (Div. 2) | 2 | |

331 | PawnChess | Codeforces | Codeforces Round #328 (Div. 2) | 2 | |

332 | 2Char | Codeforces | Codeforces Round #329 (Div. 2) | 2 | |

333 | Wilbur and Swimming Pool | Codeforces | Codeforces Round #331 (Div. 2) | 2 | |

334 | Magic Spheres | Codeforces | Codeforces Round #335 (Div. 2) | 2 | |

335 | Saitama Destroys Hotel | Codeforces | Codeforces Round #336 (Div. 2) | 2 | |

336 | Link/Cut Tree | Codeforces | Codeforces Round #339 (Div. 2) | 2 | |

337 | Interview | Codeforces | Codeforces Round #344 (Div. 2) | 2 | |

338 | Little Artem and Presents | Codeforces | Codeforces Round #348 (VK Cup 2016 Round 2, Div. 2 Edition) | 2 | |

339 | Pouring Rain | Codeforces | Codeforces Round #349 (Div. 2) | 2 | |

340 | Bear and Game | Codeforces | Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) | 2 | |

341 | Interview with Oleg | Codeforces | Technocup 2017 - Elimination Round 2 | 2 | |

342 | Alyona and copybooks | Codeforces | Codeforces Round #381 (Div. 2) | 2 | |

343 | Alyona and flowers | Codeforces | Codeforces Round #381 (Div. 2) | 2 | |

344 | Fenwick Trees | SPOJ | 2 | ||

345 | Display Size | Codeforces | Codeforces Round #387 (Div. 2) | 2 | |

346 | Santa Claus and a Place in a Class | Codeforces | Technocup 2017 - Elimination Round 3 | 2 | |

347 | Lesha and array splitting | Codeforces | Codeforces Round #390 (Div. 2) | 2 | |

348 | Petr and a calendar | Codeforces | Codeforces Round #393 (Div. 2) (8VC Venture Cup 2017 - Final Round Div. 2 Edition) | 2 | |

349 | Neverending competitions | Codeforces | Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 2 | |

350 | Sagheer and Crossroads | Codeforces | Codeforces Round #417 (Div. 2) | 2 | |

351 | Straight <<A>> | Codeforces | Codeforces Round #415 (Div. 2) | 2 | |

352 | Bank Robbery | Codeforces | Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) | 2 | |

353 | Carrot Cakes | Codeforces | Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) | 2 | |

354 | Is it rated? | Codeforces | Codeforces Round #412 (rated, Div. 2, base on VK Cup 2017 Round 3) | 2 | |

355 | Vicious Keyboard | Codeforces | Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2) | 2 | |

356 | Chess Tourney | Codeforces | Educational Codeforces Round 27 | 2 | |

357 | Restaurant Tables | Codeforces | Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) | 2 | |

358 | Mister B and Book Reading | Codeforces | Codeforces Round #421 (Div. 2) | 2 | |

359 | Okabe and Future Gadget Laboratory | Codeforces | Codeforces Round #420 (Div. 2) | 2 | |

360 | Chores | Codeforces | Educational Codeforces Round 30 | 2 | |

361 | Bark to Unlock | Codeforces | Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 2 | |

362 | Chess For Three | Codeforces | Educational Codeforces Round 33 (Rated for Div. 2) | 2 | |

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

364 | Book Replacement | Live Archive | 2005 | Asia - Tokyo | 2 |

365 | Kalevitch and Chess | Codeforces | Codeforces Beta Round #7 | 3 | |

366 | Increasing Sequence | Codeforces | Codeforces Beta Round #11 | 3 | |

367 | Super Agent | Codeforces | Codeforces Beta Round #12 (Div 2 Only) | 3 | |

368 | Numbers | Codeforces | Codeforces Beta Round #13 | 3 | |

369 | Letter | Codeforces | Codeforces Beta Round #14 (Div. 2) | 3 | |

370 | Noldbach problem | Codeforces | Codeforces Beta Round #17 | 3 | |

371 | Worms Evolution | Codeforces | Codeforces Beta Round #31 (Div. 2, Codeforces format) | 3 | |

372 | Reconnaissance | Codeforces | Codeforces Beta Round #32 (Div. 2, Codeforces format) | 3 | |

373 | Ball Game | Codeforces | School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) | 3 | |

374 | Sleuth | Codeforces | Codeforces Beta Round #46 (Div. 2) | 3 | |

375 | Bar | Codeforces | Codeforces Beta Round #52 (Div. 2) | 3 | |

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

377 | Room Leader | Codeforces | Codeforces Beta Round #68 | 3 | |

378 | Haiku | Codeforces | Codeforces Beta Round #70 (Div. 2) | 3 | |

379 | Help Far Away Kingdom | Codeforces | Codeforces Beta Round #78 (Div. 2 Only) | 3 | |

380 | Card Game | Codeforces | Codeforces Beta Round #82 (Div. 2) | 3 | |

381 | Postcards and photos | Codeforces | Codeforces Beta Round #98 (Div. 2) | 3 | |

382 | New Year Table | Codeforces | Codeforces Round #100 | 3 | |

383 | Vasya and the Bus | Codeforces | Codeforces Round #120 (Div. 2) | 3 | |

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

385 | Exams | Codeforces | Codeforces Round #122 (Div. 2) | 3 | |

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

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

388 | Two Problems | Codeforces | Codeforces Round #128 (Div. 2) | 3 | |

389 | Tiling with Hexagons | Codeforces | Codeforces Round #133 (Div. 2) | 3 | |

390 | Dice Tower | Codeforces | Codeforces Round #139 (Div. 2) | 3 | |

391 | Heads or Tails | Codeforces | Codeforces Round #149 (Div. 2) | 3 | |

392 | Dividing Orange | Codeforces | Codeforces Round #150 (Div. 2) | 3 | |

393 | Little Xor | Codeforces | Codeforces Round #153 (Div. 2) | 3 | |

394 | Cards with Numbers | Codeforces | Codeforces Round #155 (Div. 2) | 3 | |

395 | Sockets | Codeforces | Codeforces Round #159 (Div. 2) | 3 | |

396 | Point on Spiral | Codeforces | Codeforces Round #171 (Div. 2) | 3 | |

397 | Cows and Primitive Roots | Codeforces | Codeforces Round #174 (Div. 2) | 3 | |

398 | Polo the Penguin and Segments | Codeforces | Codeforces Round #177 (Div. 2) | 3 | |

399 | Snow Footprints | Codeforces | Codeforces Round #180 (Div. 2) | 3 | |

400 | Pythagorean Theorem II | Codeforces | Codeforces Round #183 (Div. 2) | 3 | |

401 | Whose sentence is it? | Codeforces | Codeforces Round #185 (Div. 2) | 3 | |

402 | Sereja and Bottles | Codeforces | Codeforces Round #187 (Div. 2) | 3 | |

403 | Down the Hatch! | Codeforces | Codeforces Round #193 (Div. 2) | 3 | |

404 | Dima and Guards | Codeforces | Codeforces Round #214 (Div. 2) | 3 | |

405 | Rook, Bishop and King | Codeforces | Codeforces Round #217 (Div. 2) | 3 | |

406 | K-Periodic Array | Codeforces | Codeforces Round #218 (Div. 2) | 3 | |

407 | Nuts | Codeforces | Codeforces Round #236 (Div. 2) | 3 | |

408 | Guess a number! | Codeforces | Codeforces Round #241 (Div. 2) | 3 | |

409 | Music | Codeforces | Codeforces Round #315 (Div. 2) | 3 | |

410 | Guest From the Past | Codeforces | Codeforces Round #342 (Div. 2) | 3 | |

411 | Mike and Cellphone | Codeforces | Codeforces Round #361 (Div. 2) | 3 | |

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

413 | The Map | SPOJ | 3 | ||

414 | Johnny and the Watermelon Plantation | SPOJ | 3 | ||

415 | Train and Peter | Codeforces | Codeforces Beta Round #8 | 4 | |

416 | Power Consumption Calculation | Codeforces | Codeforces Beta Round #10 | 4 | |

417 | Triangle | Codeforces | Codeforces Beta Round #18 (Div. 2 Only) | 4 | |

418 | BerOS file system | Codeforces | Codeforces Alpha Round #20 (Codeforces format) | 4 | |

419 | You're Given a String... | Codeforces | Codeforces Beta Round #23 | 4 | |

420 | Ring road | Codeforces | Codeforces Beta Round #24 | 4 | |

421 | Spit Problem | Codeforces | Codeforces Beta Round #29 (Div. 2, Codeforces format) | 4 | |

422 | Shell Game | Codeforces | Codeforces Beta Round #35 (Div. 2) | 4 | |

423 | Autocomplete | Codeforces | Codeforces Beta Round #49 (Div. 2) | 4 | |

424 | Where Are My Flakes? | Codeforces | Codeforces Beta Round #56 | 4 | |

425 | A Student's Dream | Codeforces | Codeforces Beta Round #58 | 4 | |

426 | Irrational problem | Codeforces | Codeforces Beta Round #62 | 4 | |

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

428 | Bus Game | Codeforces | Codeforces Beta Round #71 | 4 | |

429 | Chord | Codeforces | Codeforces Beta Round #73 (Div. 2 Only) | 4 | |

430 | Cableway | Codeforces | Codeforces Beta Round #74 (Div. 2 Only) | 4 | |

431 | Plate Game | Codeforces | Codeforces Round #124 (Div. 2) | 4 | |

432 | Mountain Scenery | Codeforces | Codeforces Round #134 (Div. 2) | 4 | |

433 | Where do I Turn? | Codeforces | Codeforces Round #140 (Div. 2) | 4 | |

434 | Lefthanders and Righthanders | Codeforces | Codeforces Round #145 (Div. 2, ACM-ICPC Rules) | 4 | |

435 | Strange Addition | Codeforces | Codeforces Round #184 (Div. 2) | 4 | |

436 | Two Semiknights Meet | Codeforces | Codeforces Round #212 (Div. 2) | 4 | |

437 | Nineteen | Codeforces | Codeforces Round #230 (Div. 2) | 4 | |

438 | K-Palindrome | A2 Online Judge | 4 | ||

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

440 | Cottage Village | Codeforces | Codeforces Beta Round #15 | 5 | |

441 | World Football Cup | Codeforces | Codeforces Beta Round #19 | 5 | |

442 | Accounting | Codeforces | Codeforces Beta Round #30 (Codeforces format) | 5 | |

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

444 | Extra-terrestrial Intelligence | Codeforces | Codeforces Beta Round #36 | 5 | |

445 | Find Color | Codeforces | Codeforces Beta Round #39 | 5 | |

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

447 | Rock-paper-scissors | Codeforces | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) | 5 | |

448 | Flea travel | Codeforces | Codeforces Beta Round #51 | 5 | |

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

450 | Clothes | Codeforces | Codeforces Beta Round #79 (Div. 2 Only) | 5 | |

451 | Elevator | Codeforces | Codeforces Beta Round #88 | 5 | |

452 | Robot Bicorn Attack | Codeforces | Codeforces Round #115 | 5 | |

453 | Inna and Pink Pony | Codeforces | Codeforces Round #220 (Div. 2) | 5 | |

454 | Inna and Alarm Clock | Codeforces | Codeforces Round #229 (Div. 2) | 5 | |

455 | Counting Sticks | Codeforces | Codeforces Round #231 (Div. 2) | 5 | |

456 | Pages | Codeforces | Codeforces Round #233 (Div. 2) | 5 | |

457 | Points and Segments (easy) | Codeforces | Codeforces Round #245 (Div. 2) | 5 | |

458 | April Fools' Problem (easy) | Codeforces | Helvetic Coding Contest 2017 online mirror (teams allowed, unrated) | 5 | |

459 | Chef and The Recursive Algorithm | CodeChef | 5 | ||

460 | Game with String | Codeforces | Codeforces Round #468 (Div. 1, based on Technocup 2018 Final Round) & Codeforces Round #468 (Div. 2, based on Technocup 2018 Final Round) | 5 | |

461 | InfiniteSequence | TopCoder | SRM 413 - Div2 hard] (13504) | 5 | |

462 | Cheaterius's Problem | Codeforces | Codeforces Beta Round #48 | 6 | |

463 | Presents | Codeforces | Codeforces Beta Round #50 | 6 | |

464 | Harry Potter and Three Spells | Codeforces | Codeforces Beta Round #60 | 6 | |

465 | The Elder Trolls IV: Oblivon | Codeforces | Codeforces Beta Round #66 | 6 | |

466 | Transmigration | Codeforces | Codeforces Beta Round #81 | 6 | |

467 | On Segment's Own Points | Codeforces | Codeforces Round #232 (Div. 2) | 6 | |

468 | Grasshopper | UVA | 6 | ||

469 | Jabber ID | Codeforces | Codeforces Alpha Round #21 (Codeforces format) | 7 | |

470 | Bender Problem | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 7 | |

471 | Vasya and Types | Codeforces | Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) | 7 | |

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

473 | Cinema | Codeforces | Codeforces Round #126 (Div. 2) | 8 | |

474 | Amr and Math | SPOJ | 8 | ||

475 | Prefix Sums | Codeforces | Educational Codeforces Round 26 | 8 | |

476 | Watermelons | TJU | 8 | ||

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

478 | bfs | SPOJ | 10 |