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  1. import java.util.*;
  2. public class Main
  3. {
  4. 	public static void main(String[] args) {
  5. 		Scanner sc = new Scanner(System.in);
  6. 		int n = sc.nextInt();
  7. 		int ne,no;
  8. 		long sum = 0;
  9. 		if(n%2==0) {
  10. 		    ne = n/2;
  11. 		    no = n/2;
  12. 		     sum = (long)ne;
  13. 		}else{
  14. 		    ne = n/2;
  15. 		    no = (n/2)+1;
  16. 		    sum = -1*((long)ne+1);
  17. 		}
  18.  
  19. 		System.out.println(sum);
  20.  
  21. 	}
  22. }
Success #stdin #stdout 0.13s 54548KB
comments (?)
stdin 
5
stdout 
-3
https://ideone.com/fTycZ4
language:
Java (HotSpot 12)
created:
2 hours ago
visibility:
public

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