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  1. import java.util.Scanner;
  2. import java.io.Console;
  3. public class Main {
  4.  
  5. 	/**
  6. 	 double a,b,c, delta;
  7.     while (cin >> a >> b >> c)
  8.     {
  9.           delta = (b * b) - (4 * a * c);        
  10.           if (delta > 0) printf("2\n");
  11.           else if (delta == 0) printf("1\n");
  12.           else if (delta < 0) printf("0\n");
  13.     }
  14. 	 */
  15. 	public static void main(String[] args) {
  16. 		 Scanner input = new Scanner(System.in);
  17.  
  18. 		 double a,b,c, delta;
  19. 		 do {
  20. 			 a=input.nextDouble();
  21. 			 b=input.nextDouble();
  22. 			 c=input.nextDouble();
  23.  
  24. 			 delta = (b * b) - (4 * a * c);    			 
  25. 	         if (delta > 0) System.out.println("2");
  26. 	         else if (delta == 0) System.out.println("1");
  27. 	         else if (delta < 0) System.out.println("0");
  28.  
  29. 		} while ( input.hasNext() );
  30. 	}
  31.  
  32. }
  33.  
Success #stdin #stdout 0.07s 213312KB
comments (?)
stdin 
0.3 0.3 0.4
0.5 1 0.5
-0.5 -0.5 0
stdout 
0
1
2
https://ideone.com/361n1
language:
Java (HotSpot 12)
created:
15 years ago
visibility:
secret

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