---
tags: AC LeetCode 刷題讀書會 - 2023
---
# 2023/07/16(日) 每週 LeetCode 刷題
## 刷題題號
- [202. Happy Number]()
## 解題思路
Write an algorithm to determine if a number n is happy.
A happy number is a number defined by the following process:
<pre style='background-color:#ggg'>
- Starting with any positive integer, replace the number by the sum of the squares of its digits.
- Repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1.
- Those numbers for which this process ends in 1 are happy.
</pre>
Return true if n is a happy number, and false if not.
<pre style='background-color:#ggg'>
編寫一個算法來定義一個數字 n 是否是快樂數字。
- 從任何正整數開始,將數字特換成平方和。
- 重複這個過程直到數字等於 1(它將保持不變),或者它在不包括 1 的循環中無限循環。
- 這個過程以 1 結束的那些數字就是快樂數字。
如果 n 是一個快樂的數字,則回傳 true,否則回傳 false。
</pre>
## 回報格式
- 請 Fork 此 Replit 連結(https://replit.com/@AllenLi23/AC-LeetCode-Js-202-Happy-Number)後,進行程式碼解題,並於完成後更新到 Replit 中,再將連結貼至「解題分享區」來與大家交流做法。
解題分享區
---
讀書會議流程:
ex. 21:05開始
#簽到表:
https://docs.google.com/spreadsheets/d/1gc16rrF-yZNs845z_nYrdgDIiSECOJok30dNLyQm69A/edit#gid=534323210
1. 題目說明。
2. 題目解析(BigO(n))。
4. 成員分享解題思路。
5. 問題與討論。
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lighthouse: mali7591@hotmail.com
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lighthouse: sean821125@gmail.com
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lighthouse: pythonforeye@gmail.com
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