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  1. #include <stdio.h>
  2. int trb(int x)
  3. {
  4.     if(x==0||x==1)
  5.         return 0;
  6.     else if(x==2)
  7.         return 1;
  8.     else
  9.         return trb(x-1)+trb(x-2)+trb(x-3);
  10. }
  11.  
  12. int main(void) {
  13. 	int n;
  14.     scanf("%d",&n);
  15.     printf("%d\n",trb(n));
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/N8805M
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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