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

1 | K-based Numbers | Timus | 1 | ||

2 | Histogram | SPOJ | 1 | ||

3 | Assignments | SPOJ | 1 | ||

4 | Fedor and New Game | Codeforces | Codeforces Round #267 (Div. 2) | 1 | |

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

6 | Preparing Olympiad | Codeforces | Codeforces Round #306 (Div. 2) | 1 | |

7 | Tavas and SaDDas | Codeforces | Codeforces Round #299 (Div. 2) | 1 | |

8 | Dreamoon and WiFi | Codeforces | Codeforces Round #272 (Div. 2) | 1 | |

9 | LATGACH3 | SPOJ | 1 | ||

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

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

12 | Lineup | SPOJ | 2 | ||

13 | Candles | Live Archive | 2011 | Asia - Dhaka | 2 |

14 | False Mirrors | Timus | 2 | ||

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

16 | Pebbles | Live Archive | 2007 | North America - Pacific Northwest & North America - Southern California | 2 |

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

18 | PICK UP DROP ESCAPE | SPOJ | 3 | ||

19 | Fetching Cooking Tools | CodeChef | 3 | ||

20 | The Child and Set | Codeforces | Codeforces Round #250 (Div. 2) | 3 | |

21 | Kefa and Dishes | Codeforces | Codeforces Round #321 (Div. 2) | 3 | |

22 | Little Girl and Maximum XOR | Codeforces | Codeforces Round #169 (Div. 2) | 3 | |

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

24 | Short Program | Codeforces | Codeforces Round #443 (Div. 1) & Codeforces Round #443 (Div. 2) | 3 | |

25 | Sagheer, the Hausmeister | Codeforces | Codeforces Round #417 (Div. 2) | 3 | |

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

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

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

29 | And Or | UVA | 4 | ||

30 | Three Logos | Codeforces | Codeforces Round #322 (Div. 2) | 4 | |

31 | Permutations | Codeforces | Rockethon 2015 | 4 | |

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

33 | Little Pony and Harmony Chest | Codeforces | Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) | 4 | |

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

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

36 | PFAST Inc. | Codeforces | Codeforces Beta Round #86 (Div. 2 Only) | 5 | |

37 | A Simple Task | Codeforces | Codeforces Beta Round #11 | 5 | |

38 | New Year Tree | Codeforces | Educational Codeforces Round 6 | 5 | |

39 | Mike and Foam | Codeforces | Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) | 5 | |

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

41 | Roman and Numbers | Codeforces | Codeforces Round #235 (Div. 2) | 5 | |

42 | Fox and Minimal path | Codeforces | Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) | 5 | |

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

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

45 | Square Subsets | Codeforces | Codeforces Round #448 (Div. 2) | 5 | |

46 | Practice | Codeforces | Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) | 6 | |

47 | Table | Codeforces | Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) | 6 | |

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

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

50 | Sereja and Table | Codeforces | Codeforces Round #243 (Div. 1) | 6 | |

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

52 | Second price auction | Codeforces | Rockethon 2015 | 6 | |

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

54 | Jzzhu and Numbers | Codeforces | Codeforces Round #257 (Div. 1) | 6 | |

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

56 | Cunning Gena | Codeforces | RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) | 6 | |

57 | New Year Letter | Codeforces | Good Bye 2013 | 6 | |

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

59 | Permutation Sum | Codeforces | Codeforces Round #175 (Div. 2) | 6 | |

60 | Hongcow's Game | Codeforces | Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) | 6 | |

61 | Unusual Sequences | Codeforces | Codeforces Round #450 (Div. 2) | 6 | |

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

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

64 | Train Passengers | A2 Online Judge | 6 | ||

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

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

67 | Binary Table | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 7 | |

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

69 | Fuzzy Search | Codeforces | Codeforces Round #296 (Div. 1) | 7 | |

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

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

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

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

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

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

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

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

78 | Traveling Graph | Codeforces | Codeforces Alpha Round #21 (Codeforces format) | 8 | |

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

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

81 | 2048 | Codeforces | Coder-Strike 2014 - Round 2 | 8 | |

82 | Bear and Floodlight | Codeforces | Codeforces Round #226 (Div. 2) | 8 | |

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

84 | Bags and Coins | Codeforces | Codeforces Round #207 (Div. 1) | 8 | |

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

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

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

88 | The Minimum Number of Variables | Codeforces | Codeforces Round #171 (Div. 2) | 8 | |

89 | Two Sets | Codeforces | Codeforces Round #153 (Div. 1) | 9 | |

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

91 | Quick Tortoise | Codeforces | Codeforces Round #144 (Div. 1) | 9 | |

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

93 | Polycarpus is Looking for Good Substrings | Codeforces | VK Cup 2012 Finals (unofficial online-version) | 9 | |

94 | Brand New Problem | Codeforces | Codeforces Round #127 (Div. 1) | 9 | |

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

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

97 | Two Subsequences | Codeforces | Codeforces Beta Round #72 (Div. 1 Only) | 9 | |

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

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

100 | Gambling Nim | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 9 | |

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

102 | Simplified Nonogram | Codeforces | Codeforces Round #298 (Div. 2) | 9 | |

103 | Misha and XOR | Codeforces | Codeforces Round #285 (Div. 1) | 9 | |

104 | Design Tutorial: Increase the Constraints | Codeforces | Codeforces Round #270 | 9 | |

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

106 | Game with Strings | Codeforces | Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) | 9 | |

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

108 | Robot in Basement | Codeforces | Yandex.Algorithm 2011 Finals | 10 | |

109 | Mutation | Codeforces | All-Ukrainian School Olympiad in Informatics | 10 | |

110 | Boolean Function | Codeforces | Codeforces Round #323 (Div. 1) | 10 | |

111 | Party | Codeforces | Bubble Cup 8 - Finals [Online Mirror] | 10 | |

112 | Restoring Map | Codeforces | VK Cup 2015 - Finals, online mirror | 10 | |

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