ajout sqartroot

srcs/ft_sqrt.c

@@ -0,0 +1,15 @@
+#include "libft.h"
+
+/*
+** return the square root of nb
+** or the integer value of it
+*/
+int		ft_sqrt(int nb)
+{
+	int i;
+
+	i = 0;
+	while ((i*i) < nb)
+		i++;
+	return (i);
+}