全wa求助

#include <bits/stdc++.h>
using namespace std;

int main(){
    int n;
    scanf("%d",&n);
    int arr[n];
    int number=0;
    int num=0;
    for (int i = 0; i < n; i++) {
        scanf("%d",&arr[i]);
        number=number+arr[i];
        num=num+1;
    }
    double ans=number/num;
    printf("%d ",number);
    printf("%.5lf",ans);
    return 0;
}

## 求大佬指教！！