func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int l = 0, r = 0;     string s, t;     cin >> s >> t;     int i = 0;     for (int j = 0; j < t.length(); j++) {       if (s[i] == t[j]) {         if (i == s.length() - 1) {           i = s.length() - 1;           l = j + 1;           break;         } else           i++;       }     }     for (int j = t.length() - 1; j > l - 1; j--) {       if (s[i] == t[j]) {         if (i == 0) {           i = 0;           r = t.length() - j;           break;         } else           i--;       }     }     if (l == 0 || r == 0) {       cout << 0;       return 0;     }     int ans;     ans = t.length() - l - r + 1;     cout << ans;     return 0;   }   