1 |
P1 - Kefa and Park |
Codeforces |
Codeforces Round #321 (Div. 2) |

2 |
P2 - Boredom |
Codeforces |
Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) |

3 |
P3 - Interesting drink |
Codeforces |
Codeforces Round #367 (Div. 2) |

4 |
P4 - Sherlock and his girlfriend |
Codeforces |
ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) |

5 |
P5 - Destroying Array |
Codeforces |
Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined) |

6 |
P6 - Thor |
Codeforces |
Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) |

7 |
P7 - Aramic script |
Codeforces |
Codeforces Round #478 (Div. 2) |

8 |
P8 - The number of positions |
Codeforces |
Codeforces Beta Round #92 (Div. 2 Only) |