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Re:B题,貌似直接贪心度为1的也可以,度为1的只能和他的伙伴两个人一块In Reply To:拆点，二分图匹配ac了 Posted by:nkzgm at 2008-12-07 18:20:29 貌似直接贪心度为1的也可以,度为1的只能和他的伙伴两个人一块. 如果贪着贪着有度为0的,则肯定无解... 如果剩下的度都大于1,则肯定有解了 Followed by: Post your reply here: |
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