题目链接 https://www.luogu.org/problemnew/show/P2860 思路 缩点,之后就成了个树一般的东西了 然后(叶子节点+1)/2就是答案,好像贪心的样子,lmc好像讲过诶 cpp #include <iostream> #include <cstdio> #include <vector> #include <bits/stdc++.h> #define iter vector<int>::iterator
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