文章 2021-12-18 来自:开发者社区

LeetCode之First Unique Character in a String

1、题目Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1.Examples:s = "leetcode" return 0. s = "loveleetcode", return 2.2、代码实现public clas....

文章 2016-10-17 来自:开发者社区

[LeetCode]--387. First Unique Character in a String

Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return -1. Examples: s = "leetcode" return 0. s = "loveleetcode", return 2. Note: You may...

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