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

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