2018年3月4日

POJ 3169 Layout(差分约束+链式前向星+SPFA)

摘要： 描述 Like everyone else, cows like to stand close to their friends when queuing for feed. FJ has N (2 <= N <= 1,000) cows numbered 1..N standing along a 阅读全文

posted @ 2018-03-04 21:22 大桃桃 阅读(232) 评论(0) 推荐(1)

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