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wa到心痛，都怪自己没读清楚题目前两天刚做一道题目，输入中给出的边是指定了父子关系的。 做这道题目的时候还理所当然的那样认为。其实这题输入中给出的边只是邻接关系，需要自己转化。因为这个WA了我十个小时。 Followed by: Post your reply here: |
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