CHALLENGE: HAPPY NUMBERS!!!!!

Question

Start with any positive integer, replace the number by the sum of the squares of its digits in base-ten, and repeat the process until the number either equals 1 (where it will stay), or it loops endlessly in a cycle that include number 4. Those numbers for which this process ends in 1 are called happy numbers, others are unhappy or sad numbers.
Examples:
208 -> 2*2 + 8*8 = 68 -> 6*6 + 8*8 = 100 -> 1*1 = 1 ---> HAPPY NUMBER :)
145 -> 1*1 + 4*4 + 5*5 = 42 -> 4*4 + 2*2 = 20 -> 2*2 = 4 ---> SAD NUMBER :(

Write a program that gets a number and says if it is happy or not.

Answer 1

My solution:

https://code.sololearn.com/cwoA9YMj5Svj/?ref=app

Answer 2

https://code.sololearn.com/cQrj6XdvguyT/?ref=app

Answer 3

Here's my C# implementation! ✌

No LINQ this time and I gave credit to Amrit in the code since he's the one that propose the same challenge before this. Enjoy~ ❤

https://code.sololearn.com/cbB504rypHIG/?ref=app

Answer 4

https://www.sololearn.com/discuss/583252/?ref=app

Posted earlier by me...

Answer 5

I think this challenge is around plus I had not resolved yet so here my practice on python ☺ https://code.sololearn.com/cymJJVP2fNp8/#py

Answer 6

My java solution based on easy method and loops
https://code.sololearn.com/cg1LLvk0hJN5/#java

Answer 7

Very nice & knowledgeable post all features are defined in a good way for more detail visit https://bit.ly/2WapnD4 thanks