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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4. #include <numeric>
  5.  
  6. using namespace std;
  7.  
  8. double mean(const vector<int>& numbers) {
  9.     if (numbers.empty())
  10.         return 0;
  11.     return accumulate(numbers.begin(), numbers.end(), 0.0) / numbers.size();
  12. }
  13.  
  14. int main() {
  15.  
  16.     int input;
  17.     vector<int> v;
  18.     while(cin >> input){
  19.         v.push_back(input);
  20.     }
  21.  
  22.     cout << mean(v);
  23.  
  24. 	return 0;
  25.  
  26. }
Success #stdin #stdout 0.01s 2860KB
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13.2
https://ideone.com/zAEAwW
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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