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  1. import java.util.Scanner;
  2. import java.lang.Math;
  3.  
  4. class Ideone
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 	double a, b, z, s;
  9.     Scanner scan = new Scanner(System.in);
  10.     a = scan.nextDouble();
  11.     b = scan.nextDouble();
  12.     z = scan.nextDouble();
  13.     if ((1 / (Math.tan (z * Math.PI / 180)) > a / Math.sqrt(2) / b) && (z != 0) && (z != 90)){
  14.         s = a * a / 2 / Math.cos (z * Math.PI / 180);
  15.     }
  16.     else if (z == 0) {
  17.         s = 0;
  18.     }
  19.     else if (z == 90) {
  20.         s = a * b * Math.sqrt(2);
  21.     }
  22.     else {
  23.         s = (a * Math.sqrt(2) - b * 1 / (Math.tan (z * Math.PI / 180))) * b / Math.sin (z * Math.PI / 180);
  24.     }
  25.     s = Double.parseDouble(String.format("%.3f", s));
  26.     System.out.print(s);
  27. 	}
  28. }
Success #stdin #stdout 0.08s 2184192KB
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stdin
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3 10 48
stdout
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6.725
https://ideone.com/GthrM7
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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