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  1. #include <stdio.h>
  2.  
  3. int comb(int n,int r){
  4.    if(r==0||r==n)
  5.      return 0;
  6.    else if (n==0&&r==0)
  7.    return 0;
  8.    else
  9.       return comb(n-1,r-1)+comb(n-1,r);
  10. }
  11. int main(void) {
  12. 	int x,y;
  13. 	scanf("%d",&x);
  14. 	scanf("%d",&y);
  15. 	printf("%d",comb(x+y,x));
  16. 	return 0;
  17. }
Success #stdin #stdout 0s 5320KB
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https://ideone.com/pv1Klp
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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