求整数的和与均值

#include <iostream>
#include <iomanip>
using namespace std;
int main(){
    int n;
    cin>>n;
    int m;
    int sum;
    double x;
    for(int i=0;i<n;i++){
        cin>>m;
        x=x+m;
        sum+=m;
    }
    cout<<sum<<" ";
    cout<<fixed<<setprecision(5)<<x/n;
    return 0;
}