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  1. #include <stdio.h>
  2. int trb(int x)
  3. {
  4.     if(x==0)
  5.         return 0;
  6.     else if(x==1)
  7.         return 0;
  8.     else if(x==2)
  9.         return 1;
  10.     else
  11.         return trb(x-1)+trb(x-2)+trb(x-3);
  12. }
  13.  
  14. int main(void) {
  15. 	int n;
  16.     scanf("%d",&n);
  17.     printf("%d\n",trb(n));
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0.01s 5328KB
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https://ideone.com/a5qhNc
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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