1 |
P1 - Leaving Auction |
Codeforces |
Codeforces Round #388 (Div. 2) |

2 |
P2 - Borya and Hanabi |
Codeforces |
Codeforces Round #253 (Div. 1) & Codeforces Round #253 (Div. 2) |

3 |
P3 - EKG |
Codeforces |
ABBYY Cup 3.0 |

4 |
P4 - Mr. Kitayuta's Colorful Graph |
Codeforces |
Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) |

5 |
P5 - Fight the Monster |
Codeforces |
Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) |

6 |
P6 - Xor-tree |
Codeforces |
Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) |

7 |
P7 - Santa Claus and Robot |
Codeforces |
Technocup 2017 - Elimination Round 3 |

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

9 |
P9 - Chris and Magic Square |
Codeforces |
Codeforces Round #369 (Div. 2) |