func_code_string: #include <bits/stdc++.h>   using namespace std;   bool debug = 1;   int main() {     long long k;     vector<long long> v;     scanf( %lld , &k);     string s;     cin >> s;     long long sum = 0;     for (int i = 0; i < (s.size()); i++) {       v.push_back(s[i] -  0 );       sum += v[i];     }     sort(v.begin(), v.end());     int i = 0;     long long ans = 0;     while (i < v.size() and sum < k) {       sum += (9 - v[i]);       i++;       ans++;     }     printf( %lld n , ans);     return 0;   }   