func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s;     cin >> s;     s +=  0 ;     int c = 1;     char sc = s[0];     bool xd = false;     string res =   ;     for (int i = 1; i < s.size(); i++) {       if (sc != s[i]) {         if (c == 1) {           res += sc;           xd = false;         } else if (c >= 2 && xd) {           xd = false;           res += sc;         } else {           xd = true;           res += sc;           res += sc;         }         c = 1;         sc = s[i];       } else         c++;     }     cout << res << endl;     return 0;   }   