LeetCode 344

Reverse String

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

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

 1 /*************************************************************************
 2     > File Name: LeetCode344.c
 3     > Author: Juntaran    
 4     > Mail: Jacinthmail@gmail.com
 5     > Created Time: 2016年05月10日 星期二 02时25分37秒
 6  ************************************************************************/
 7 
 8 /*************************************************************************
 9     
10     Reverse String 
11     
12     Write a function that takes a string as input and returns the string reversed.
13 
14     Example:
15     Given s = "hello", return "olleh".
16 
17  ************************************************************************/
18 
19 #include "stdio.h"
20 
21 char* reverseString(char* s)
22 {
23     int i;
24     int length = strlen(s);
25     char temp;
26     
27     for( i=0; i<length/2; i++ )
28     {
29         temp = s[i];
30         s[i] = s[length-i-1];
31         s[length-i-1] = temp;
32     }
33     return s;
34 }
35 
36 int main()
37 {
38     char* s = "hello";
39     reverseString(s);
40     return 0;
41 }