[Leetcode] Reverse String Flipping strings

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

Example:
Given s = "Hello", Return "Olleh".

This problem is not difficult, go straight from both ends to the middle, while exchanging the characters on both sides, see the code as follows:

Solution One:

class Solution {public:    string reversestring (string  s) {         int 0 1 ;          while (Left < right ) {            char t = s[left];            S[left+ +] = S[right];            S[right--] = t;        }         return s;    }};

We can also use the SWAP function to help us flip:

Solution Two:

class Solution {public:    string reversestring (string  s) {         int 0 1 ;          while (Left < right ) {            swap (S[left+ +], s[right--]);        }         return s;    }};

Similar topics:

Reverse Words in a String II

Reverse Words in a String

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[Leetcode] Reverse String Flipping strings