func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MaxN = 1e5;   const int Inf = 1 << 30;   double a[105];   int main() {     int n, cnt;     double pos, pp, ans, sum;     while (~scanf( %d , &n)) {       sum = 0;       pos = 4.5;       pos *= n;       for (int i = 1; i <= n; i++) {         scanf( %lf , &a[i]);         sum += a[i];       }       cnt = 0;       sort(a + 1, a + 1 + n);       while (sum < pos) {         cnt++;         sum += 5 - a[cnt];       }       printf( %d n , cnt);     }     return 0;   }   