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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Scanner sc = new Scanner (System.in);
  13. 		double a = sc.nextDouble();
  14. 		double b = sc.nextDouble();
  15. 		double c = sc.nextDouble();
  16. 		double D = Math.pow(b,2)-4*a*c;
  17. 		if (a != 0) {
  18. 			if (D > 0) {
  19. 				System.out.print("Первый корень - "+(-b+Math.sqrt(D))/(2*a)+", второй корень - "+(-b-Math.sqrt(D))/(2*a));
  20. 			}
  21. 			if (D == 0) {
  22. 				System.out.print("Корень - "+((-b)/(2*a)));
  23. 			}
  24. 		}
  25. 	}
  26. }
Success #stdin #stdout 0.07s 4386816KB
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stdin
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2
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stdout
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Первый корень - 1.0, второй корень - -1.5
https://ideone.com/dZj3nO
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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