From f9535fac720c4331df5b42a92fa77e8e66b21135 Mon Sep 17 00:00:00 2001
From: youngyangyang04 <826123027@qq.com>
Date: Fri, 14 May 2021 15:37:50 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E4=B8=BB=E5=87=BD=E6=95=B0?=
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---
 problems/0151.翻转字符串里的单词.md | 21 +++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/problems/0151.翻转字符串里的单词.md b/problems/0151.翻转字符串里的单词.md
index e975ef53..1c567f84 100644
--- a/problems/0151.翻转字符串里的单词.md
+++ b/problems/0151.翻转字符串里的单词.md
@@ -141,7 +141,8 @@ void reverse(string& s, int start, int end) {
 
 <img src='https://code-thinking.cdn.bcebos.com/pics/151_%E7%BF%BB%E8%BD%AC%E5%AD%97%E7%AC%A6%E4%B8%B2%E9%87%8C%E7%9A%84%E5%8D%95%E8%AF%8D.png' width=600> </img></div>
 
-```
+```C++
+// 版本一
 class Solution {
 public:
     // 反转字符串s中左闭又闭的区间[start, end]
@@ -219,6 +220,24 @@ public:
 };
 ```
 
+当然这里的主函数reverseWords写的有一些冗余的，可以精简一些，精简之后的主函数为：
+
+```C++
+// 注意这里仅仅是主函数，其他函数和版本一一致
+string reverseWords(string s) {
+    removeExtraSpaces(s);
+    reverse(s, 0, s.size() - 1);
+    for(int i = 0; i < s.size(); i++) {
+        int j = i;
+        // 查找单词间的空格，翻转单词
+        while(j < s.size() && s[j] != ' ') j++;
+        reverse(s, i, j - 1);
+        i = j;
+    }
+    return s;
+}
+```
+