1 |
P1 - Football |
Codeforces |
Codeforces Beta Round #77 (Div. 2 Only) |

2 |
P2 - Petya and Strings |
Codeforces |
Codeforces Beta Round #85 (Div. 2 Only) |

3 |
P3 - Chat room |
Codeforces |
Codeforces Beta Round #54 (Div. 2) |

4 |
P4 - Word Capitalization |
Codeforces |
Codeforces Round #172 (Div. 2) |

5 |
P5 - Two Substrings |
Codeforces |
Codeforces Round #306 (Div. 2) |

6 |
P6 - File Name |
Codeforces |
Codeforces Round #481 (Div. 3) |

7 |
P7 - Letters Rearranging |
Codeforces |
Educational Codeforces Round 56 (Rated for Div. 2) |

8 |
P8 - Passwords |
Codeforces |
Codeforces Round #374 (Div. 2) |

9 |
P9 - Vasya and String |
Codeforces |
Codeforces Round #354 (Div. 2) |

10 |
P10 - Ohana Cleans Up |
Codeforces |
Codeforces Round #309 (Div. 2) |

11 |
P11 - String Transformation |
Codeforces |
Educational Codeforces Round 39 (Rated for Div. 2) |

12 |
P12 - PolandBall and Game |
Codeforces |
8VC Venture Cup 2017 - Elimination Round |

13 |
P13 - Cloud of Hashtags |
Codeforces |
Codeforces Round #401 (Div. 2) |

14 |
P14 - Good Substrings |
Codeforces |
Codeforces Round #166 (Div. 2) |

15 |
P15 - Palindrome Degree |
Codeforces |
Codeforces Beta Round #7 |