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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 [https://en.wikipedia.org/wiki/In-place_algorithm] with O (1) extra memory.
Nov 8, 2016 · 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"]
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344. Reverse String. Time: O (n) O(n) Space: O (1) O(1) C++ Java Python. 1 2 3 4 5 6 7 8 9 10. class Solution { public: void reverseString(vector<char>& s) { int l = 0; int r = s.size() - 1; while (l < r) swap(s[l++], s[r--]); } }; LeetCode Solutions in C++20, Java, Python, MySQL, and TypeScript.
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344. Reverse String. Easy. 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. class Solution: def reverseString(self, s: List[str]) -> None: s.reverse()
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:
Mar 8, 2024 · https://leetcode.com/problems/reverse-string/ Feel free to give this a go and send me your solution. Problem Write a function that reverses a string. The input string is given as an array of characters s.
344. Reverse String. Level: Easy. Related topics: Recursion. Link: https://leetcode.com/problems/reverse-string/ Problem. Write a function that reverses a string. The input string is given as an array of characters char[]. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O (1) extra memory.
May 4, 2024 · This problem requires us to perform a constant-space in-place reversal of a string. This is quite an easy problem to solve as we can simply use two pointers and a temp variable to do a character-by-character reversal of a string.
