提交时间:2024-01-28 17:24:05

运行 ID: 38853

#include <iostream> using namespace std; int main () { int n,num; int sum=0; double ave; cin>>n; for(int i=1;i<=n;i++){ cin>>num; sum+=num; } ave=(double)sum/n; cout<<sum<<" "; printf("%.5f",ave); return 0; }