http://codeforces.com/problemset/problem/731/C 并查集,然后找每个集合里颜色的最大数量,求集合中元素数量-这个最大数量,最后总数相加即答案. #include<iostream> #include<cstring> #include<cstdio> #include<algorithm> #include<vector> using namespace std; ],l,r,pre[]; vector…