LeetCode 344. Reverse String (Easy)

反转一个字符串。

原始问题

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”.

解题思路

直接反向复制即可。

AC代码

C语言

char* reverseString(char* s) {
     int n = strlen(s);
     char * r = (char *)malloc((n+1) * sizeof(char));
     
     for (int i = 0;i < n;i++) {
         r[i] = s[n - i - 1];
     }
     r[n] = '\0';

     return r;
}

相关题目

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