func_code_string: #include <bits/stdc++.h>   int main() {     int n, count = 0, i = 0, ans, flag = 1;     char s[201];     scanf( %d %s , &n, s);     while (s[i] !=   0 ) {       if (s[i] ==  x ) count++;       i++;     }     if (n / 2 > count) {       ans = n / 2 - count;       flag = 0;     } else       ans = count - n / 2;     printf( %d n , ans);     i = 0;     while (n-- && ans) {       if (s[i] ==  x  && flag) {         s[i] =  X ;         ans--;       } else if (s[i] ==  X  && !flag) {         s[i] =  x ;         ans--;       }       i++;     }     printf( %s n , s);     return 0;   }   