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389. 找不同 #84

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@yankewei

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@yankewei
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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"

示例 3:

输入:s = "a", t = "aa"
输出:"a"

示例 4:

输入:s = "ae", t = "aea"
输出:"a"

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.com/problems/find-the-difference
著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。

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