1 |
P1 - Amusing Joke |
Codeforces |
Codeforces Round #101 (Div. 2) |

2 |
P2 - Dubstep |
Codeforces |
Codeforces Round #130 (Div. 2) |

3 |
P3 - Pangram |
Codeforces |
Codeforces Round #295 (Div. 2) |

4 |
P4 - Word |
Codeforces |
Codeforces Beta Round #55 (Div. 2) |

5 |
P5 - Lecture |
Codeforces |
Codeforces Round #284 (Div. 2) |

6 |
P6 - Mr. Kitayuta's Gift |
Codeforces |
Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) |

7 |
P7 - Pythagorean Theorem II |
Codeforces |
Codeforces Round #183 (Div. 2) |

8 |
P8 - Cut Ribbon |
Codeforces |
Codeforces Round #119 (Div. 2) |

9 |
P9 - Hexadecimal's theorem |
Codeforces |
Codeforces Round #125 (Div. 2) |

10 |
P10 - Lucky Division |
Codeforces |
Codeforces Beta Round #91 (Div. 2 Only) |

11 |
P11 - Vasya and Football |
Codeforces |
Codeforces Round #281 (Div. 2) |

12 |
P12 - Vitaliy and Pie |
Codeforces |
Codeforces Round #297 (Div. 2) |

13 |
P13 - Even Odds |
Codeforces |
Codeforces Round #188 (Div. 2) |

14 |
P14 - Combination Lock |
Codeforces |
Codeforces Round #301 (Div. 2) |

15 |
P15 - Reposts |
Codeforces |
VK Cup 2015 - Qualification Round 1 |

16 |
P16 - Petya and Strings |
Codeforces |
Codeforces Beta Round #85 (Div. 2 Only) |

17 |
P17 - Olesya and Rodion |
Codeforces |
Codeforces Round #324 (Div. 2) |

18 |
P18 - Currency System in Geraldion |
Codeforces |
Codeforces Round #313 (Div. 2) |

19 |
P19 - Giga Tower |
Codeforces |
Codeforces Round #278 (Div. 2) |

20 |
P20 - Fox and Number Game |
Codeforces |
Codeforces Round #228 (Div. 2) |

21 |
P21 - Fedor and New Game |
Codeforces |
Codeforces Round #267 (Div. 2) |

22 |
P22 - Little Dima and Equation |
Codeforces |
Codeforces Round #262 (Div. 2) |