func_code_string: #include <bits/stdc++.h>   using namespace std;   string s;   int poz, sol;   int main() {     sol = INT_MAX;     cin >> s;     int n = s.size();     for (int c = 1; c <= 26; c++) {       char ch = c +  a  - 1;       poz = -1;       int maxx = 0;       for (int i = 0; i < n; i++) {         if (s[i] == ch) {           if (i - poz > maxx) maxx = i - poz;           poz = i;         }       }       if (n - poz > maxx) maxx = n - poz;       if (sol > maxx) sol = maxx;     }     cout << sol;     return 0;   }   