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  1. #include <stdio.h>
  2.  
  3. int combination(int n,int r){
  4. 	if (n==r+1) return ;
  5. 	else {
  6. 		return (n/r)*combination(n-1,r-1);
  7. 	}
  8. }
  9.  
  10. int main(void) {
  11.   int n,r;
  12.   scanf("%d %d",&n,&r);
  13.   printf("%d",combination(n,r));
  14. 	return 0;
  15. }
  16.  
Success #stdin #stdout 0s 5280KB
comments (?)
stdin 
6 3
stdout 
Standard output is empty
https://ideone.com/psbHpQ
language:
C (gcc 8.3)
created:
84 days ago
visibility:
public

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