思路及代码去尾加头认为示例给的不好比如输入63输出是ABCBABCBAABCBABCBA还是ABCBABCBADCBEDCFDE呢是后者//inputn,mint1<=<=26#include<iostream>#include<vector>usingnamespacestd;intmain(){intn,m;cin>>n>>m;//solu