func_code_string: #include <bits/stdc++.h>   using namespace std;   long long a[9], aa[9];   int c[9], cc[9];   int n;   int ans;   void dfs(int u, int cnt, int self) {     if (u == n) {       ans = min(ans, cnt + (self > 1));       return;     }     dfs(u + 1, cnt + cc[u] + (c[u] != 1), self + 1);     for (int i = u + 1; i < n; i++)       if (aa[i] % a[u] == 0) {         aa[i] /= a[u];         cc[i] -= c[u];         dfs(u + 1, cnt + cc[u] + (c[u] != 1), self);         aa[i] *= a[u];         cc[i] += c[u];       }   }   int main() {     int i, j;     scanf( %d , &n);     for (i = 0; i < n; i++) scanf( %I64d , &a[i]);     sort(a, a + n);     for (i = 0; i < n; i++) {       long long x = a[i];       long long m = sqrt(x + 0.5);       for (j = 2; j <= m; j++)         while (x % j == 0) {           c[i]++;           x /= j;         }       if (x > 1) c[i]++;       aa[i] = a[i];       cc[i] = c[i];     }     ans = 1e9;     dfs(0, 0, 0);     printf( %d n , ans);     return 0;   }   