LeetCode:Reverse String

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本文介绍了一个简单的字符串反转函数，该函数接受一个字符串作为输入并返回其反转后的结果。例如，给定's'为hello，函数将返回olleh。文章提供了C++代码示例，展示了如何通过两个指针在字符串两端开始交换字符来实现这一功能。

Reverse String

Total Accepted: 32384 Total Submissions: 55169 Difficulty: Easy

Write a function that takes a string as input and returns the string reversed.

Example:
Given s = "hello", return "olleh".

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Two Pointers String

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(E) Reverse Vowels of a String

c++ code:

class Solution {
public:
    string reverseString(string s) {
        
        int len = s.length();
        int i=0,j=len-1;
        
        while(i<j) {
            s[i] ^= s[j] ^= s[i] ^= s[j];
            i++;
            j--;
        }
        return s;
    }
};