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是不是跟判最长路对应于判有没有正圈、判最短路对应于判有没有负圈？In Reply To:请问用差分约束，什么时候判有没有最短路，什么时候判有没有最长路？ Posted by:steiner at 2005-11-03 21:59:46 Followed by: Post your reply here: |
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