缩圈/缩点 (共13题)
| ID | Problem Title | Source | AC Ratio | Solved | Tries | |
|---|---|---|---|---|---|---|
| 1381 | Popular Cows 受欢迎的牛（popular） | USACO 2004 Fall Green | 100% | 1 | 1 | |
| 2929 | Popular Cows | USACO 2003 Fall Green | 29% | 6 | 28 | |
| 3465 | Caterpillar | CodeForces 51F | 100% | 1 | 1 | |
| 3529 | Network of Schools | IOI 1996 | 0% | 0 | 0 | |
| 3585 | 轰炸（bomb） | XOJ | 53% | 9 | 19 | |
| 4297 | 消息的传递 | 一本通 | 75% | 6 | 8 | |
| 4298 | 间谍网络 | 一本通 | 100% | 1 | 1 | |
| 4299 | 抢掠计划 | APIO 2009 | 86% | 5 | 7 | |
| 4395 | 逃不掉的路 | 李煜东 | 71% | 4 | 7 | |
| 4396 | Traffic Real Time Query System 交通实时查询系统(数据较水) | HDU 3686 | 36% | 2 | 11 | |
| 4397 | Going from u to v or from v to u? 从u到v还是从v到u？ | POJ 2762 | 30% | 5 | 20 | |
| 4398 | 杀人游戏 | BZOJ 2438 | 100% | 1 | 1 |