3,4,5WA
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3,4,5WA
797464
zfw100楼主2023/1/18 11:04
#include<bits/stdc++.h>
using namespace std;
int main(){
	long long n,a[101],j=0;
	cin>>n;
	for(long long i=1;i<=n;i++){
		cin>>a[i];
		j+=a[i];
	}
	cout<<j<<" "<<fixed<<setprecision(5)<<(double)j/n;
	return 0;
}

2023/1/18 11:04
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