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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. 		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
  13. 		long n = Integer.parseInt(reader.readLine());
  14. 		int y = 0;
  15. 		int count = 0;
  16. 		double yRestriction = Math.round(Math.pow(n, (double) (1.0/3)));
  17. 		//System.out.println(yRestriction);
  18.  
  19. 		if(n < 1 || n > Math.pow(n, 18)){
  20. 			count = 0;
  21. 		}
  22. 		else{
  23. 			while(y <= yRestriction){
  24.  
  25. 				double yResult = Math.pow(y, 3);
  26. 				//System.out.println(yResult);
  27. 				double result = n - yResult;
  28. 				if(Math.sqrt(result) == (int) Math.sqrt(result)){
  29. 					count++;
  30. 				} 
  31.  
  32. 				y++;
  33. 			}
  34. 		}
  35.  
  36.  
  37. 		System.out.println(count);
  38.  
  39. 		/*long endTime = System.currentTimeMillis();
  40. 		long searchTime = endTime - start;
  41. 		System.out.println(searchTime);
  42. 		*/
  43.  
  44. 	}
  45. }
Success #stdin #stdout 0.05s 4386816KB
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https://ideone.com/952A7Q
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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