From 52d55ac871428a363721810d9736c0ffa26f02ba Mon Sep 17 00:00:00 2001
From: Mohamed Shelf <60757136+MohamedSaid7102@users.noreply.github.com>
Date: Wed, 12 Oct 2022 08:14:06 +0200
Subject: [PATCH] Short one line solution for Tutorial '06'  'hw1'

---
 18-Programming-4kids/06_homework_01_answer.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/18-Programming-4kids/06_homework_01_answer.cpp b/18-Programming-4kids/06_homework_01_answer.cpp
index 3f1ceb5..82b4086 100644
--- a/18-Programming-4kids/06_homework_01_answer.cpp
+++ b/18-Programming-4kids/06_homework_01_answer.cpp
@@ -10,9 +10,16 @@ int main() {
 	bool is_even1 = (num % 2 == 0);
 
 	// is even using /2
-	double by2 = (double) num / 2.0;// this is either X.0 or X.5  (try 10, 11)
-	by2 = by2 - (int) by2;// Remove X. This is now either 0 (for even) or 0.5 (for odd)
-	bool is_even2 = by2 == 0;
+	// one line solution:
+	// **Hint** You don't need to cast 'num' to from 'int' to 'double' like "(double)num", 
+	// by default if you divide it as an integer / 2.0 (which is double) 
+	// C++ will convert num to 'double' and return 'double'
+	bool is_even_2 = (num / 2.0 - num / 2) == 0;  
+	
+	// multiple lines solution:	
+	//double by2 = (double) num / 2.0;// this is either X.0 or X.5  (try 10, 11)
+	//by2 = by2 - (int) by2;// Remove X. This is now either 0 (for even) or 0.5 (for odd)
+	//bool is_even2 = by2 == 0;
 
 	// is even using %10
 	int last_digit = num % 10;	// even last digit is 0, 2, 4, 6, 8