Accepted

easy/344-reverse-string.py

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+#
+# @lc app=leetcode id=344 lang=python3
+#
+# [344] Reverse String
+#
+# https://leetcode.com/problems/reverse-string/description/
+#
+# algorithms
+# Easy (79.16%)
+# Likes:    8757
+# Dislikes: 1184
+# Total Accepted:    2.9M
+# Total Submissions: 3.7M
+# Testcase Example:  '["h","e","l","l","o"]'
+#
+# 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 <= 10^5
+# s[i] is a printable ascii character.
+# 
+# 
+#
+
+# @lc code=start
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        """
+        Do not return anything, modify s in-place instead.
+        s = s[:-1]
+        return s
+        """
+        s[:] = s[::-1]
+        return s
+
+# @lc code=end
+