fork download
copy 
  1. // 1-7-B
  2. #include <stdio.h>
  3. int main(void){
  4. 	int n, x, ans, i, j, k;
  5. 	while(1){
  6. 		ans = 0;
  7. 		scanf("%d%d", &n, &x);
  8. 		if(n == 0 && x == 0) break;
  9. 		for(i = 1; i <= n; ++i){
  10. 			for(j = i+1; j <= n; ++j){
  11. 				for(k = j+1; k <= n; ++k){
  12. 					if(i+j+k == x) ++ans;
  13. 				}
  14. 			}
  15. 		}
  16. 		printf("%d\n", ans);
  17. 	}
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 2012KB
comments (?)
stdin
copy 
33 4
8 10
0 0
stdout
copy 
0
4
https://ideone.com/X5CIC8
language:
C (gcc 8.3)
created:
8 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!