func_code_string: #include <bits/stdc++.h>   using namespace std;   char n[1000 + 2];   char m[1000 + 2];   int color_n[30];   int color_m[30];   int main() {     while (scanf( %s , n) != EOF) {       scanf( %s , m);       memset(color_n, 0, sizeof(color_n));       memset(color_m, 0, sizeof(color_m));       for (int i = 0; i < strlen(n); i++) color_n[n[i] -  a ]++;       for (int j = 0; j < strlen(m); j++) color_m[m[j] -  a ]++;       int ans = 0;       int flag = 1;       for (int i = 0; i < 30; i++) {         ans += min(color_n[i], color_m[i]);         if (color_m[i] && color_n[i] == 0) flag = 0;       }       if (ans == 0 || flag == 0)         printf( -1 n );       else         printf( %d n , ans);     }     return 0;   }   