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Re:用father[i]!=i判断不是树的根，为什么这样不行，求教In Reply To:用father[i]!=i判断不是树的根，为什么这样不行，求教 Posted by:678847360 at 2015-05-22 15:19:35 为什么要判断是不是GEN啊 直接建图跑就行了么 Followed by: Post your reply here: |
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