1 |
P1 - Greg and Graph |
Codeforces |
Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) |

2 |
P2 - Roads in Berland |
Codeforces |
Codeforces Beta Round #25 (Div. 2 Only) |

3 |
P3 - Roads not only in Berland |
Codeforces |
Codeforces Beta Round #25 (Div. 2 Only) |

4 |
P4 - Planets |
Codeforces |
Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) |

5 |
P5 - Biridian Forest |
Codeforces |
Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) |

6 |
P6 - Jzzhu and Cities |
Codeforces |
Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) |

7 |
P7 - The Two Routes |
Codeforces |
Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) |

8 |
P8 - Two Paths |
Codeforces |
Codeforces Beta Round #14 (Div. 2) |

9 |
P9 - Destroying Roads |
Codeforces |
Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) |

10 |
P10 - Paths and Trees |
Codeforces |
Codeforces Round #303 (Div. 2) |