Network Security Internet Technology Development Database Servers Mobile Phone Android Software Apple Software Computer Software News IT Information

In addition to Weibo, there is also WeChat

Please pay attention

WeChat public account

Shulou

How to reverse a string using LeetCode

2025-03-11 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >

Share

Shulou(Shulou.com)06/02 Report--

How to use LeetCode to reverse strings, for this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

Topic description

Write a function that reverses the input string.

Example 1:

Enter: "hello"

Output: "olleh"

Example 2:

Enter: "A man, a plan, a canal: Panama"

Output: "amanaP: lanac a, nalp a, nam A"

Train of thought analysis

Go directly from the two ends to the middle and exchange the characters on both sides at the same time.

Animation demonstration

Animation demo reference code 1 stroke / 344. Reverse String

2max / https://leetcode.com/problems/reverse-string/description/

3// Two Pointers

4max / time complexity: O (n)

5max / space complexity: O (1)

6class Solution {

7public:

8 string reverseString (string s) {

nine

10 int I = 0, j = s.size ()-1

11 while (I

< j){ 12 swap(s[i], s[j]); 13 i ++; 14 j --; 15 } 16 17 return s; 18 } 19}; 代码截图

This is the answer to the question about how to use LeetCode to reverse strings. I hope the above content can be of some help to you. If you still have a lot of doubts to solve, you can follow the industry information channel for more related knowledge.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.

Views: 0

*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.

Share To

Internet Technology

Wechat

© 2024 shulou.com SLNews company. All rights reserved.

12
Report