LeetCode 第 344 题(Reverse String)

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

Example:
Given s &＃61; “hello”, return “olleh”.

这道题非常简单。用 C&＃43;&＃43; 来写的话主要是考察对 string 类型的掌握情况。下面是代码&＃xff1a;

string reverseString(string s)
{string ret;if(s.empty()) return ret;string::const_iterator tail &＃61; s.cend();do{tail --;ret.push_back(*tail);}while (tail !&＃61; s.cbegin());return ret;
}