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  1. #include <stdio.h>
  2.  
  3. int trb(int n){
  4. 	if(n==0 || n==1) {
  5. 		return 0;
  6. 	} else if(n==2) {
  7. 		return 1;
  8. 	} else 
  9. 		return trb(n-1)+trb(n-2)+trb(n-3);
  10. }
  11.  
  12. int main(void) {
  13. 	int a;
  14. 	scanf("%d",&a);
  15. 	printf("%d",trb(a));
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5316KB
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https://ideone.com/pewckV
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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