1 |
P1 - Random Teams |
Codeforces |
Codeforces Round #273 (Div. 2) |

2 |
P2 - Dreamoon and WiFi |
Codeforces |
Codeforces Round #272 (Div. 2) |

3 |
P3 - Mashmokh and ACM |
Codeforces |
Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) |

4 |
P4 - Minimum number of steps |
Codeforces |
Codeforces Round #411 (Div. 1) & Codeforces Round #411 (Div. 2) |

5 |
P5 - Kyoya and Colored Balls |
Codeforces |
Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) |

6 |
P6 - Unbearable Controversy of Being |
Codeforces |
Codeforces Round #277.5 (Div. 2) |

7 |
P7 - Pashmak and Buses |
Codeforces |
Codeforces Round #261 (Div. 2) |

8 |
P8 - Ilya and Escalator |
Codeforces |
Codeforces Round #293 (Div. 2) |

9 |
P9 - Little Elephant and Interval |
Codeforces |
Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) |

10 |
P10 - Beautiful Numbers |
Codeforces |
Codeforces Round #181 (Div. 2) |

11 |
P11 - Matrix |
Codeforces |
Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) |

12 |
P12 - Lucky Permutation |
Codeforces |
Codeforces Beta Round #91 (Div. 1 Only) & Codeforces Beta Round #91 (Div. 2 Only) |

13 |
P13 - Symmetric and Transitive |
Codeforces |
Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) |

14 |
P14 - Cipher |
Codeforces |
Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) |

15 |
P15 - Little Elephant and Elections |
Codeforces |
Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) |

16 |
P16 - Desk Disorder |
Codeforces |
MemSQL Start[c]UP 3.0 - Round 1 |

17 |
P17 - Winter is here |
Codeforces |
Codeforces Round #428 (Div. 2) |

18 |
P18 - Iahub and Permutations |
Codeforces |
Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) |

19 |
P19 - Path Counting |
Codeforces |
Educational Codeforces Round 40 (Rated for Div. 2) |

20 |
P20 - Gifts |
Codeforces |
Codeforces Round #142 (Div. 1) |