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  1.  #include <iostream>
  2.  #include <cmath> 
  3.  using namespace std;
  4.  
  5.  int main() {
  6. 	long double a, b;
  7.            cin >> a >> b;
  8.            cout << (a+b)/2 << endl;
  9.            cout << sqrt(a*b) << endl;
  10. 	return 0;
  11. }
Success #stdin #stdout 0s 3464KB
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51.3
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https://ideone.com/UeSUGm
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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