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形如()(int,T,T)的输入算一棵树么?根据题目中树的定义，这种形式应该是一颗树的。 为了处理()(int,T,T)中的前缀()，写得我心都碎了。 再看discuss，原来只是没考虑负数，剩下我风中凌乱。 Followed by: Post your reply here: |
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