344. Reverse String

Easy

Description

Write a function that reverses a string. The input string is given as an array of characters s.

You must do this by modifying the input array in-place with O(1) extra memory.

Example 1:

Input: s = ["h","e","l","l","o"]
Output: ["o", "l", "l", "e", "h"]

Example 2:

Input: s = ["H","a","n","n","a","h"]
Output: ["h", "a", "n", "n", "a", "H"]

Constraints:

• 1 <= s.length <= 105
• s[i] is a printable ascii character.

Solutions 🔒

Akhil Singh Chauhan
Creator

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