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  1. #include <stdio.h>
  2. int fibonacci(int n) {
  3. 	if(n==0){
  4. 		return 0;
  5. 	}
  6. 	if(n==1){
  7. 		return 1;
  8. 	}
  9. 	int x0=0;
  10. 	int x1=1;
  11. 	int xi;
  12. 	for(int i=2; i<=n; i++){
  13. 		xi=x0+x1;
  14. 		x0=x1;
  15. 		x1=xi;
  16. 	}
  17. 	return xi;
  18. }
  19.  
  20. int main() {
  21. 	int n;
  22. 	scanf("%d",&n);
  23. 	printf("%d",fibonacci(n));
  24. 	return 0;
  25. }
  26.  
Success #stdin #stdout 0.01s 5308KB
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https://ideone.com/ZbOlBO
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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