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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_sqrt.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/07/06 20:06:48 by cacharle #+# #+# */
/* Updated: 2019/07/09 06:38:18 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
int bin_search_sqrt(long unsigned int nb, unsigned int low, unsigned int up)
{
long unsigned int mid;
mid = low + ((up - low) / 2);
if (mid * mid == nb)
return (mid);
if (low > up)
return (0);
if (mid * mid < nb)
return (bin_search_sqrt(nb, mid + 1, up));
else
return (bin_search_sqrt(nb, low, mid - 1));
}
int ft_sqrt(int nb)
{
if (nb < 0)
return (0);
return (bin_search_sqrt(nb, 0, nb));
}
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