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  1. #include <stdio.h>
  2.  
  3. int fibonacci(int n) {
  4.     if (n == 0) 
  5.     return 0;
  6.     if (n == 1)
  7.     return 1;
  8.  
  9.     int a = 0;  
  10.     int b = 1;  
  11.     int c;
  12.  
  13.     for (int i = 2; i <= n; i++) {
  14.         c = a + b;
  15.         a = b;
  16.         b = c;
  17.     }
  18.     return b;
  19. }
  20.  
  21. int main() {
  22.     printf("%d\n", fibonacci(5));  
  23.     return 0;
  24. }
Success #stdin #stdout 0.01s 5284KB
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Standard input is empty
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5
https://ideone.com/j5sSvc
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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