func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     long long int T = 1;     while (T--) {       string s1, s2;       cin >> s1 >> s2;       long long int ans = 0;       long long int i, j, k;       i = j = k = 0;       long long int n = s2.size();       long long int m = s1.size();       long long int count = 0;       map<long long int, long long int> fs, ls;       while (i < n && j < m) {         if (s2[i] == s1[j]) {           fs[i] = j;           i++;           j++;           count = 0;         } else {           count++;           j++;         }         ans = max(ans, count);       }       ans = max(ans, m - (j));       i = n - 1;       j = m - 1;       while (i >= 0 && j >= 0) {         if (s2[i] == s1[j]) {           i--;           j--;           ls[i] = j;           count = 0;         } else {           count++;           j--;         }         ans = max(ans, count);       }       for (auto x : fs) {         ans = max(ans, ls[x.first] - x.second);       }       ans = max(ans, j + 1);       cout << ans <<   n ;     }     return 0;   }   