func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m, i, flag, ans, index, j;     int a[4000], b[4000];     cin >> n >> m;     for (i = 0; i < n; i++) cin >> a[i];     for (i = 0; i < m; i++) cin >> b[i];     ans = 0;     for (i = n; i >= 0; i--) {       flag = 0;       for (j = m; j >= 0; j--) {         if (a[i] <= b[j]) {           flag = 1;           b[j] = 0;           break;         }       }       if (flag == 0) ans = ans + 1;     }     cout << ans;     return 0;   }   