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  1. #include <stdio.h>
  2.  
  3. int c;
  4.  
  5. int rec(int n){
  6. 	c++;
  7.  
  8. 	if(n==1){
  9. 		return 1;
  10. 	}else if(n==2){
  11. 		return 2;
  12. 	}else{
  13. 		return -6*rec(n-1)-9*rec(n-2);
  14.  
  15. 	}
  16. }
  17.  
  18. int main(void) {
  19. 	int n = 5;
  20. 	printf("a%d is %d\n",n,rec(n));
  21. 	printf("%d is count",c);
  22. 	return 0;
  23. }
  24.  
Success #stdin #stdout 0s 5280KB
comments (?)
stdin 
Standard input is empty
stdout 
a5 is -459
9 is count
https://ideone.com/Cij01Z
language:
C (gcc 8.3)
created:
72 days ago
visibility:
public

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