#include <stdio.h>

int ft_sqrt(int nb)
{
	int num;
	int i;

	num = 0;
	i = 0;
	while (1)
	{
		num = i * i;

		if (nb == num)
		{
			return i;
		}
		if (num >= nb)
			break;
		i++;
	}
	return 0;
}

int main()
{
	printf("%d\n", ft_sqrt(-1));
	printf("%d\n", ft_sqrt(0));
	printf("%d\n", ft_sqrt(1));
	printf("%d\n", ft_sqrt(2));
	printf("%d\n", ft_sqrt(3));
	printf("%d\n", ft_sqrt(4));
	printf("%d\n", ft_sqrt(5));
	printf("%d\n", ft_sqrt(9));
}