From 749e3c1146353682af90d470ed1934c8d2ebe388 Mon Sep 17 00:00:00 2001
From: ember <1279347317@qq.com>
Date: Sat, 6 Sep 2025 01:49:57 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=86=85=E5=AE=B9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 content/post/算法题/位运算操作.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/content/post/算法题/位运算操作.md b/content/post/算法题/位运算操作.md
index c5fdc6c..34efb29 100644
--- a/content/post/算法题/位运算操作.md
+++ b/content/post/算法题/位运算操作.md
@@ -27,6 +27,7 @@ math: true
 | `x & 1`                  | 判断奇偶性：真为奇，假为偶        |
 | `(n > 0) && ((n & (n - 1)) == 0)`            | 判断n是否为2的幂。因为2的幂的二进制只有一个1，用n & (n-1)可以直接把它唯一的1去掉变成0。
 | `n & ((1 << k) - 1)` | 等价于 `n % (1 << k)`，即`n`对$2^k$取模 |
+| `a ^= b; b ^= a; a ^= b` | 交换a和b的值 |
 
 统计二进制数中1的个数：
 ```cpp