/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_fibonacci.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: gbaconni <gbaconni@student.42lausan>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/08/17 17:09:01 by gbaconni          #+#    #+#             */
/*   Updated: 2021/08/17 18:28:10 by gbaconni         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

int	ft_fibonacci(int index)
{
	int	nb;
	int	n1;
	int	n2;

	nb = -1;
	n1 = 0;
	n2 = 1;
	if (index == 0)
		nb = n1;
	else if (index == 1)
		nb = n2;
	else if (index > 1)
		nb = ft_fibonacci(index) + ft_fibonacci(index - 1);
	return (nb);
}