README
¶
387. First Unique Character in a String
Description
Given a string s, find the first non-repeating character in it and return its index. If it does not exist, return -1.
Example 1:
Input: s = "leetcode"
Output: 0
Example 2:
Input: s = "loveleetcode"
Output: 2
Example 3:
Input: s = "aabb"
Output: -1
Constraints:
1 <= s.length <= 10^5sconsists of only lowercase English letters.
Documentation
¶
There is no documentation for this package.
Source Files
Click to show internal directories.
Click to hide internal directories.