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

1 | Street Parade | SPOJ | 1 | |

2 | Team Queue | UVA | 1 | |

3 | Group Reverse | UVA | 1 | |

4 | Error Correction | UVA | 1 | |

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

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

7 | Mass of Molecule | SPOJ | 1 | |

8 | Queue | Codeforces | Codeforces Round #303 (Div. 2) | 1 |

9 | Box of Bricks | UVA | 1 | |

10 | WERTYU | UVA | 1 | |

11 | Rails | UVA | 1 | |

12 | Transform the Expression | SPOJ | 1 | |

13 | Army Buddies | UVA | 1 | |

14 | Adding Reversed Numbers | UVA | 1 | |

15 | A and B and Compilation Errors | Codeforces | Codeforces Round #294 (Div. 2) | 1 |

16 | Fraction | Codeforces | Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) | 1 |

17 | "Accordian" Patience | UVA | 1 | |

18 | Web Navigation | PKU | 1 | |

19 | Mother bear | UVA | 1 | |

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

21 | Newspaper | UVA | 1 | |

22 | The Bus Driver Problem | UVA | 1 | |

23 | Machined Surfaces | UVA | 1 | |

24 | Timofey and cubes | Codeforces | Codeforces Round #395 (Div. 2) | 1 |

25 | Sort the Array | Codeforces | Codeforces Round #258 (Div. 2) | 1 |

26 | Equation | UVA | 1 | |

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

28 | Sale | Codeforces | Codeforces Beta Round #34 (Div. 2) | 1 |

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

30 | Parentheses Balance | UVA | 1 | |

31 | Keyboard Layouts | Codeforces | Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) | 1 |

32 | Vanya and Lanterns | Codeforces | Codeforces Round #280 (Div. 2) | 1 |

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

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

35 | DONALDO | SPOJ | 2 | |

36 | Ada and Queue | SPOJ | 2 | |

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

38 | Containers | UVA | 2 | |

39 | Borrowers | UVA | 2 | |

40 | Grid Successors | UVA | 2 | |

41 | Alternating Current | Codeforces | Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) | 2 |

42 | Musical Loop | UVA | 2 | |

43 | Chat Order | Codeforces | VK Cup 2016 - Qualification Round 1 | 2 |

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

45 | Time Jumper (Easy) | A2 Online Judge | 3 | |

46 | Pole Position | UVA | 3 | |

47 | z-sort | Codeforces | Educational Codeforces Round 10 | 3 |

48 | Unique Factorization | UVA | 3 | |

49 | Synching Signals | UVA | 3 | |

50 | Formula 1 | UVA | 3 | |

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

52 | Minimal string | Codeforces | Educational Codeforces Round 19 | 4 |

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

54 | The Smallest String Concatenation | Codeforces | Educational Codeforces Round 9 | 4 |

55 | Brothers | UVA | 4 | |

56 | Maximum Xor Secondary | Codeforces | Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) | 5 |