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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. long long s,n,i;
  4. int main() {
  5.     cin>>n;
  6.     vector<long long> a(n);
  7.     for(i=0;i<n;i++){
  8.     	cin>>a[i];
  9.     	s+=a[i];
  10. 	}
  11. 	double x=(double)s/n;
  12. 	cout << fixed << setprecision(2) << x<<endl;
  13. 	for(i=0;i<n;i++)
  14. 		if(a[i]*1.0>x)cout<<i<<" ";
  15. }
Success #stdin #stdout 0.01s 5292KB
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stdin
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Standard input is empty
stdout
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-nan
https://ideone.com/TK1AAX
language:
C++ (gcc 8.3)
created:
9 hours ago
visibility:
public

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