逆风的方向 更适合飞翔

Labeling BallsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 10161 Accepted: 2810DescriptionWindy has N balls of distinct weights from 1 unit to N

解题思路：拓扑排序的应用。参考http://www.cnblogs.com/pushing-my-way/archive/2012/08/23/2652033.html做的。本题需要注意的问题很多，有点“坑”。下面是从上面博文中转的，（）里面的内容是我自己加的。题意：给你一些大写字母间的偏序关系，然后让你判断能否唯一确定它们之间的关系，或者所给关系是矛盾的，或者到最后也不能确定

Legal or NotProblem DescriptionACM-DIY is a large QQ group where many excellent acmers get together. It is so harmonious that just like a big family. Every day,many "holy cows" like HH,

确定比赛名次Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10358    Accepted Submission(s): 4046Problem Description有N个比赛队（1