func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s1, s2;     int l;     vector<int> v;     cin >> s1 >> s2;     for (int i = 0; i < s2.length(); i++) {       if ((s2[i] -  0 ) > 0) v.push_back(s2[i] -  0 );     }     sort(v.begin(), v.end());     int k = v.size() - 1;     for (int i = 0; i < s1.length(); i++) {       for (int j = k; j >= 0; j--) {         if ((s1[i] -  0 ) < v[j]) {           k--;           s1[i] = char(v[j] +  0 );         }         break;       }     }     cout << s1 << endl;     return 0;   }   