Leetcode/first-unique-character-in-a-string at main · monishasuthapalli/Leetcode

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README.md		README.md
first-unique-character-in-a-string.java		first-unique-character-in-a-string.java

README.md

Given a string, find the first non-repeating character in it and return its index. If it doesn't exist, return -1.

Examples:

s = "leetcode"
return 0.

s = "loveleetcode"
return 2.

Note: You may assume the string contains only lowercase English letters.