UPC--6348 Milking Order 【二分+拓撲排序+優先隊列】

6348: Milking Order 時間限制: 3 Sec  內存限制: 128 MB 提交: 167  解決: 61 [提交] [狀態] [討論版] [命題人:admin]php 題目描述html Farmer John's N cows (1≤N≤105), numbered 1…N as always, happen to have too much time on their hoov

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