fork download
copy 
  1. #include <stdio.h>
  2. int comb(int n, int k){
  3. 	if(k==0 || k==n)
  4. 	return 1;
  5. 	if(k>0)
  6. 	return n*comb(n-1,k-1)/k;
  7.  
  8. }
  9. int main(void) {
  10. int n, k;
  11. scanf("%d", &n);
  12. scanf("%d", &k);
  13. printf("%d\n", comb(n, k));
  14. return 0;
  15. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
7 4
stdout
copy 
35
https://ideone.com/SxJ65j
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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!