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  1. #include <stdio.h>
  2.  
  3. int comb(int a, int b)
  4. {
  5. 	if (b == 0 || b == a) {
  6. 		return 1;
  7. 	}
  8. 	return comb(a - 1, b) + comb(a - 1, b - 1);
  9. }
  10.  
  11. int main()
  12. {
  13. 	int a, b;
  14.  
  15. 	printf("a b\n");
  16. 	scanf("%d%d", &a, &b);
  17. 	printf("comb(%d, %d) = %d\n", a, b, comb(a, b));
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0.01s 1680KB
comments (?)
stdin
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5 3
stdout
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a b
comb(5, 3) = 10
https://ideone.com/DIRNX
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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