//Happy numbers are the numbers when you recursively add the square of the digits, it ends to 1.
// eg: 7 -> 49 -> 97 -> 130 -> 10 ->1 So 7 is happy number
// similarly 4 is not happy number
static void Main(string[] args)
{
HappyNumber checkHappy = new HappyNumber();
//Recursive
Console.WriteLine($"Is 7 happy: {checkHappy.IsHappyRecursive(7)}");
Console.WriteLine($"Is 4 happy: {checkHappy.IsHappyRecursive(4)}");
Console.WriteLine($"Is 9 happy: {checkHappy.IsHappyRecursive(9)}");
Console.WriteLine($"Is 13 happy: {checkHappy.IsHappyRecursive(13)}");
//Iterative
Console.WriteLine($"Is 9 happy: {checkHappy.IsHappyIterative(9)}");
Console.WriteLine($"Is 10 happy: {checkHappy.IsHappyIterative(10)}");
Console.WriteLine($"Is 13 happy: {checkHappy.IsHappyIterative(13)}");
Console.WriteLine($"Is 19 happy: {checkHappy.IsHappyIterative(19)}");
//No extra space
Console.WriteLine($"Is 7 happy: {checkHappy.IsHappyWithNoExtraSpace(7)}");
Console.WriteLine($"Is 9 happy: {checkHappy.IsHappyWithNoExtraSpace(9)}");
Console.WriteLine($"Is 13 happy: {checkHappy.IsHappyWithNoExtraSpace(13)}");
Console.WriteLine($"Is 17 happy: {checkHappy.IsHappyWithNoExtraSpace(17)}");
}
