[Leetcode] 557. Reverse Words in a String III 解题报告

题目：

Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

Example 1:

Input: "Let's take LeetCode contest"Output: "s'teL ekat edoCteeL tsetnoc"

Note: In the string, each word is separated by single space and there will not be any extra space in the string.

思路：

练手题目，哈哈。

代码：

class Solution {public:    string reverseWords(string s) {        int start = 0, end = 0;        while (start < s.length()) {            while (end < s.length() && s[end] != ' ') {                ++end;            }            reverse(s.begin() + start, s.begin() + end);            start = end + 1;            end = start;        }        return s;    }};