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  1. #include <stdio.h>
  2.  
  3. int fib(int n){
  4. 	int a__=0,a_=1;	int a=0;
  5. 	if(n<=1) return n; 
  6. 	for(int i=2;i<=n;i++)
  7. 	{
  8. 		a=a__+a_;
  9. 		a__=a_;
  10. 		a_=a;
  11. 	}
  12. 	return a;
  13. }
  14.  
  15. int main(void) {
  16. 	printf("%d \n",fib(7));
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5268KB
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https://ideone.com/eoFJKT
language:
C (gcc 8.3)
created:
45 days ago
visibility:
public

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