Leetcode 344. Reverse String

Topic website: https://leetcode.com/problems/reverse-string/

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

Example:

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

Solution:

C++:

Class Solution {public:    string reversestring (string s) {        int len = s.length ();        char result = ';        int j = 0;        for (int i = len-1;i>=0;i--) {            result[j] = s[i];            j + +;        }        return result;}    ;

Python:

Method One:

Class solution (Object):    def reversestring (self, s): "" "        : Type s:str        : Rtype:str        " ""        return S [::-1]

Method Two:

Class solution (Object):    def reversestring (self, s): "" "        : Type s:str        : Rtype:str        " ""        t = List (s)        L = Len (t) for        i,j in Zip (range (l-1, 0,-1), Range (L//2)):            T[i], t[j] = T[j], T[i]        return "". J Oin (t)

　　

Javascript:

/** * @param {string} S * @return {string} */var reversestring = function (s) {    return S.split ("). Reverse (). Join ('); };

　　

　　

Leetcode 344. Reverse String