<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>异或 on PlumePHP</title><link>https://plumephp.com/tags/%E5%BC%82%E6%88%96/</link><description>Recent content in 异或 on PlumePHP</description><generator>Hugo</generator><language>zh-CN</language><lastBuildDate>Mon, 28 Sep 2026 10:00:00 +0800</lastBuildDate><atom:link href="https://plumephp.com/tags/%E5%BC%82%E6%88%96/index.xml" rel="self" type="application/rss+xml"/><item><title>位运算必刷8题：异或、计数与二进制技巧</title><link>https://plumephp.com/leetcode-bit-manipulation-problems/</link><pubDate>Mon, 28 Sep 2026 10:00:00 +0800</pubDate><guid>https://plumephp.com/leetcode-bit-manipulation-problems/</guid><description>&lt;h2 id="引言"&gt;引言&lt;/h2&gt;
&lt;p&gt;位运算题是面试中「性价比」最高的一类：知识点少（与、或、非、异或、移位），但技巧性极强。&lt;strong&gt;异或（XOR）三定律&lt;/strong&gt;是半壁江山，剩下的靠「位计数」和「最低位 1 的操作」解决。&lt;/p&gt;</description></item></channel></rss>