1.【板子题】Wireless Network POJ - 2236 (标记结点是否可用)
2.【板子题】The Suspects POJ - 1611 (判断有多少个结点与结点0在同一集合)
3.【板子题】How Many Tables HDU - 1213 (统计集合的个数)
4.【带权并查集】How Many Answers Are Wrong HDU - 3038
5.【带权并查集】食物链 POJ - 1182
7.【并查集优化】Supermarket POJ - 1456
8.【带权并查集+离散化】Parity game POJ - 1733
10.【带权并查集】A Bug's Life POJ - 2492
11.【带权并查集+枚举】Rochambeau POJ - 2912
12.【逆向并查集】Connections in Galaxy War ZOJ - 3261
13.【并查集判环(同14题)】Is It A Tree? POJ - 1308
14.【并查集判环】Is It A Tree? POJ - 1308