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  1. #include <stdio.h>
  2. int comb(int x,int y)
  3. {
  4.     if(x==0||y==0)
  5.         return 1;
  6.     else
  7.         return comb(x-1,y)+comb(x,y-1);
  8. }
  9.  
  10. int main(void) {
  11.     int x,y;
  12.     scanf("%d %d",&x,&y);
  13.     printf("%d\n",comb(x,y));
  14.  
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0.01s 5304KB
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stdin
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3 3
stdout
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20
https://ideone.com/A53m07
language:
C (gcc 8.3)
created:
16 days ago
visibility:
public

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