---
tags: AC LeetCode 刷題讀書會 - 2023
---
# 2023/10/22 (日) 每週 LeetCode 刷題
## 刷題題號
- [28. Find the Index of the First Occurrence in a String](https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string)
## 解題思路
Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
For the purpose of this problem, we will return 0 when needle is an empty string.
<pre style='background-color:#ggg'>
給予兩個字串「needle」、「haystack」,回傳「needle」在「haystack」相符的"第一個"陣列位置,如不符合則回傳-1。
當「needle」為空值時,回傳0。
</pre>
## 回報格式
- 請 Fork 此 Replit 連結(https://replit.com/@AllenLi23/AC-LeetCode-Js-28-Find-the-Index-of)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
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讀書會議流程:
#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 * log(m)))。
4. 成員分享解題思路。
5. 問題與討論。
<!-- No.0 (請依序排序下去)
name: name (回報範例)
lighthouse: lighthouse
Replit:https://replit.com/@AllenLi23/AC-LeetCode-Js-28-Find-the-Index-of-Allen
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<!-- No.1
name: Jack Hung
lighthouse: lhhungx@gmail.com
Replit:https://replit.com/@LungHsuanHung/AC-LeetCode-Go-28-Find-the-Index-Of-The-1st-Occur-In-A-Str#solution/solution.go
-->
<!-- No.2
name: Kai
lighthouse: pythonforeye@gmail.com
Replit:https://replit.com/@Beginneraboutli/AC-LeetCode-Js-28-Find-the-Index-of#index.js
--->