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  1. #include <iostream>
  2. #include <cmath>
  3. #include <iomanip>
  4. using namespace std;
  5.  
  6. int main() {
  7.     double a, b, z, s;
  8.     cin >> a >> b >> z;
  9.     if ((1/(tan (z * M_PI / 180)) > a/sqrt(2)/b)&&(z != 0) && (z != 90)){
  10.     s = a * a / 2 / cos (z * M_PI / 180);
  11.     }
  12.     else if (z==0) {
  13.         s=0;
  14.     }
  15.     else if (z==90) {
  16.         s=a*b*sqrt(2);
  17.     }
  18.     else {
  19.         s=(a*sqrt(2)-b*1/(tan(z* M_PI / 180)))*b/sin(z* M_PI / 180);
  20.     }
  21.     cout << setprecision(3) << fixed << s;
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0s 4264KB
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https://ideone.com/I8XRtt
language:
C++14 (clang 8.0)
created:
5 years ago
visibility:
public

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