carloscn / carloscn/structstudy

leetcode389:找不同(find-the-difference)

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Level-easy 一般问题 字符串 查找
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Description

### 问题描述

给定两个字符串 s 和 t ,它们只包含小写字母。

字符串 t 由字符串 s 随机重排,然后在随机位置添加一个字母。

请找出在 t 中被添加的字母。

示例 1:
输入:s = "abcd", t = "abcde"
输出:"e"
解释:'e' 是那个被添加的字母。

示例 2:
输入:s = "", t = "y"
输出:"y"
 
提示:
0 <= s.length <= 1000
t.length == s.length + 1
s 和 t 只包含小写字母

来源:力扣(LeetCode)
链接:https://leetcode.cn/problems/find-the-difference

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