求救！

P3052 [USACO12MAR] Cows in a Skyscraper G

哈哈哈哈哈哈哈哈哈哈哈哈哈疯狂对拍终于查完错了放一下优质的对拍数据 ``` 5 25 8 19 11 12 18 ```
by Panthera_AFO @ 2018-10-30 11:20:26