简单题

#include 
      
       #include 
       
        #include 
        
         #include 
         
          using namespace std;#define maxn 55int n;int f[maxn];int main(){    //freopen("t.txt", "r", stdin);    int t = 0;    while (scanf("%d", &n), n)    {        for (int i = 0; i < n; i++)            scanf("%d", &f[i]);        int mean = 0;        for (int i = 0; i < n; i++)            mean += f[i];        mean /= n;        int ans = 0;        for (int i = 0; i < n; i++)            ans += abs(f[i] - mean);        printf("Set #%d\n", ++t);        printf("The minimum number of moves is %d.\n", ans / 2);        puts("");    }    return 0;}