1 |
P1 - Booking System |
Codeforces |
Codeforces Round #241 (Div. 2) |

2 |
P2 - Fox And Names |
Codeforces |
Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) |

3 |
P3 - Pocket Book |
Codeforces |
Codeforces Round #108 (Div. 2) |

4 |
P4 - Mr. Kitayuta, the Treasure Hunter |
Codeforces |
Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) |

5 |
P5 - Checkposts |
Codeforces |
Codeforces Round #244 (Div. 2) |

6 |
P6 - Anya and Ghosts |
Codeforces |
Codeforces Round #288 (Div. 2) |

7 |
P7 - Table Decorations |
Codeforces |
Codeforces Round #273 (Div. 2) |

8 |
P8 - Color the Fence |
Codeforces |
Codeforces Round #202 (Div. 2) |

9 |
P9 - Another Problem on Strings |
Codeforces |
Codeforces Round #112 (Div. 2) |

10 |
P10 - Valid Sets |
Codeforces |
Codeforces Round #277 (Div. 2) |

11 |
P11 - Gargari and Bishops |
Codeforces |
Codeforces Round #264 (Div. 2) |

12 |
P12 - Bombs |
Codeforces |
Codeforces Round #203 (Div. 2) |

13 |
P13 - Tourist Problem |
Codeforces |
Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) |

14 |
P14 - Little Pony and Expected Maximum |
Codeforces |
Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) |

15 |
P15 - Bubble Sort Graph |
Codeforces |
Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) |

16 |
P16 - Modified GCD |
Codeforces |
Codeforces Beta Round #67 (Div. 2) |

17 |
P17 - Almost Arithmetical Progression |
Codeforces |
Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) |

18 |
P18 - Common Divisors |
Codeforces |
Codeforces Round #117 (Div. 2) |

19 |
P19 - Hometask |
Codeforces |
Codeforces Round #131 (Div. 2) |

20 |
P20 - Shaass and Bookshelf |
Codeforces |
Codeforces Round #178 (Div. 2) |

21 |
P21 - Password |
Codeforces |
Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) |

22 |
P22 - Zero Tree |
Codeforces |
Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) |

23 |
P23 - Pipeline |
Codeforces |
Codeforces Round #176 (Div. 2) |

24 |
P24 - Greenhouse Effect |
Codeforces |
Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) |

25 |
P25 - Dima and Hares |
Codeforces |
Codeforces Round #208 (Div. 2) |

26 |
P26 - Good Sequences |
Codeforces |
Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) |

27 |
P27 - Pair of Numbers |
Codeforces |
Codeforces Round #209 (Div. 2) |

28 |
P28 - Pashmak and Parmida's problem |
Codeforces |
Codeforces Round #261 (Div. 2) |

29 |
P29 - Devu and his Brother |
Codeforces |
Codeforces Round #251 (Div. 2) |

30 |
P30 - Dima and Bacteria |
Codeforces |
Codeforces Round #234 (Div. 2) |

31 |
P31 - Riding in a Lift |
Codeforces |
Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) |

32 |
P32 - Count Good Substrings |
Codeforces |
Codeforces Round #258 (Div. 2) |

33 |
P33 - Roman and Numbers |
Codeforces |
Codeforces Round #235 (Div. 2) |

34 |
P34 - Choosing Capital for Treeland |
Codeforces |
Codeforces Round #135 (Div. 2) |

35 |
P35 - MUH and Cube Walls |
Codeforces |
Codeforces Round #269 (Div. 2) |

36 |
P36 - XOR on Segment |
Codeforces |
Codeforces Round #149 (Div. 2) |

37 |
P37 - Vessels |
Codeforces |
Codeforces Round #218 (Div. 2) |

38 |
P38 - Bad Luck Island |
Codeforces |
Codeforces Round #301 (Div. 2) |

39 |
P39 - Red-Green Towers |
Codeforces |
Codeforces Round #273 (Div. 2) |

40 |
P40 - Pashmak and Buses |
Codeforces |
Codeforces Round #261 (Div. 2) |

41 |
P41 - Bag of mice |
Codeforces |
Codeforces Round #105 (Div. 2) |

42 |
P42 - Gargari and Permutations |
Codeforces |
Codeforces Round #264 (Div. 2) |

43 |
P43 - R2D2 and Droid Army |
Codeforces |
Codeforces Round #291 (Div. 2) |