Solution to task 1

Author: SamuelWorld20

0x04-more_functions_nested_loops/1-isdigit.c

@@ -10,7 +10,7 @@
  */
 int _isdigit(int c)
 {
-	if (c >= 0 && c <= 9)
+	if (c >= '0' && c <= '9')
 	{
 		return (1);
 	}