feat(work): add new LeetCode solution files for 1426, 1832, 344, and 15

work/3/Easy/Two Pointers/344.reverse-string.py

@@ -0,0 +1,47 @@
+"""
+344. Reverse String
+Difficulty: Easy
+https://leetcode.com/problems/reverse-string/
+
+──────────────────────────────────────────────────
+
+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.
+"""
+
+
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        l = 0
+        r = len(s) - 1
+        while l < r:
+            s[l], s[r] = s[r], s[l]
+            l += 1
+            r -= 1
+
+        """
+        Do not return anything, modify s in-place instead.
+        """