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

1 | Fast Maximum Matching | SPOJ | 1 | ||

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

3 | BerSU Ball | Codeforces | Codeforces Round #277.5 (Div. 2) | 1 | |

4 | Dungeon of Death | SPOJ | 1 | ||

5 | Vertex Cover | SPOJ | 1 | ||

6 | Queue at the School | Codeforces | Codeforces Round #163 (Div. 2) | 1 | |

7 | Taxi | SPOJ | 1 | ||

8 | My T-shirt suits me | UVA | 2 | ||

9 | Software Allocation | UVA | 2 | ||

10 | Angels and Devils | SPOJ | 2 | ||

11 | Computer Games II | TJU | 2 | ||

12 | Gopher II | UVA | 2 | ||

13 | Muddy Fields | SPOJ | 2 | ||

14 | The Problem with the Problem Setter | UVA | 2 | ||

15 | SAM I AM | UVA | 3 | ||

16 | Nuts and Bolts | UVA | 3 | ||

17 | Councilling | UVA | 3 | ||

18 | Factors and Multiples | UVA | 3 | ||

19 | The dog task | UVA | 3 | ||

20 | Antenna Placement | UVA | 3 | ||

21 | Welcome Party | Live Archive | 2013 | North America - Mid-Central USA | 3 |

22 | Gopher Strategy | UVA | 4 | ||

23 | Attacking rooks | UVA | 4 | ||

24 | Two Sets | Codeforces | Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) | 4 | |

25 | Weird Fence | UVA | 4 | ||

26 | Attacking Rooks | URI | 4 | ||

27 | Drazil and Tiles | Codeforces | Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) | 4 | |

28 | Help General | Codeforces | Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) | 5 | |

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

30 | Non-Secret Cypher | Codeforces | Codeforces Round #120 (Div. 2) | 6 | |

31 | Hamiltonian Spanning Tree | Codeforces | Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) | 6 | |

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

33 | WTF? | Codeforces | April Fools Day Contest 2013 | 6 | |

34 | Brevity is Soul of Wit | Codeforces | School Regional Team Contest, Saratov, 2011 | 7 | |

35 | George and Interesting Graph | Codeforces | Codeforces Round #227 (Div. 2) | 8 | |

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

37 | Tidying Up | Codeforces | ABBYY Cup 3.0 | 8 | |

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

39 | Birthday | Codeforces | Codeforces Round #327 (Div. 1) | 9 | |

40 | Shoe Store | Codeforces | Codeforces Round #113 (Div. 2) | 9 | |

41 | Deciphering | Codeforces | Testing Round #11 | 9 | |

42 | Buying Sets | Codeforces | Codeforces Beta Round #80 (Div. 1 Only) | 9 | |

43 | Tetris revisited | Codeforces | Yandex.Algorithm 2011 Round 2 | 9 | |

44 | Wizards and Roads | Codeforces | Codeforces Round #114 (Div. 1) | 10 | |

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

46 | Sloth | Codeforces | Codeforces Round #446 (Div. 1) | 10 | |

47 | Recover a functional graph | Codeforces | Codeforces Round #381 (Div. 1) | 10 | |

48 | Fliperama | SPOJ Brazil | 10 | ||

49 | Permanent | Codeforces | Codeforces Round #268 (Div. 1) | 10 | |

50 | Tree | Codeforces | Codeforces Round #268 (Div. 1) | 10 |