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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.  double cur = 1.0 / 4;
  7.  int x;
  8.  double ans = 0;
  9.  while (cin >> x)
  10.  {
  11.   ans += cur * x;
  12.   cur *= 3.0 / 4;
  13.  }
  14.  cout << ans << endl;
  15. }
  16.  
Success #stdin #stdout 0s 2900KB
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2340
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stdout
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1274.75
https://ideone.com/YBbqgG
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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