Educational Codeforces Round 121 (Rated for Div. 2) unr场 A B C
Educational Codeforces Round 121 (Rated for Div. 2) A B CA. Equidistant Letters思路： 每个字母在里面出现不超过两次且使每一对出现两次的字母之间的距离相同。那么直接sortsortsort结束参考代码：#include<bits/stdc++.h>using namespace std;#define mp make_pair#define int long long #define re
