fork download
copy 
  1. #include <stdio.h>
  2. int fibonacci (int n){ int i, a = 0, b = 1, c;
  3.  
  4.     if(n == 0)
  5.         return 0;
  6.     if(n == 1)
  7.         return 1;
  8.  
  9.     for(i = 2; i <= n; i++){
  10.         c = a + b;
  11.         a = b;
  12.         b = c;
  13.     }
  14.  
  15.     return b;
  16.  
  17. }
  18. int main(){
  19. printf("%d", fibonacci(5));
  20. return 0;
  21. }
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
5
https://ideone.com/XMJAup
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!