https://blog.nowcoder.net/n/1c1c400be3de4e1790d5bc1c1a6e141d?&toCommentId=12609721   原题链接   #include<bits/stdc++.h> using namespace std; int main(){     int length_good;     int length_array;     string str;     set<pair<int,int>>st;     int count=0;     getline(cin,str);     l...