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Re:雁过留声——最大费用流In Reply To:雁过留声——最大费用流 Posted by:fanhqme at 2009-11-29 19:50:08 一个格子向右和下方向的边的费用不能为0，因为这样dis[v]<dis[v]+e[u][v]就会导致不成立，但是实际上不是每一条边上都要有费用 Followed by: Post your reply here: |
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