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Python 数据结构+算法 面试实战系列:队列

  • 2026-08-23 22:48:21
Python 数据结构+算法 面试实战系列:队列

Python 数据结构+算法 面试实战系列:队列

🔥Python队列面试别再只会说FIFO了！这4道大厂高频真题才是拿offer的关键👇

很多朋友面试被问到队列，只知道“先进先出”和`deque`，结果一到手撕代码就卡壳😭
其实大厂考队列，核心就考这3个点：循环取模、单调队列、双队列设计！

这篇笔记把Python队列从基础到Hard真题全部打通✅
1️⃣ 基础避坑：为什么不能用list当队列？O(n) vs O(1) 性能差在哪？
2️⃣ LeetCode 622 循环队列：一个count变量优雅解决判空判满冲突
3️⃣ LeetCode 239 滑动窗口最大值：字节阿里必考！单调递减队列模板直接背
4️⃣ 剑指Offer 队列最大值：腾讯快手爱考的双队列设计，空间换时间经典案例
5️⃣ LeetCode 862 最短子数组：含负数时滑动窗口失效怎么办？前缀和+单调队列破局
💡每道题都提炼了最核心的代码片段，不用死记硬背完整实现，掌握思路就能举一反三！

【完整代码福利】
笔记篇幅有限，4道题的完整可运行代码（含详细注释+边界测试用例）已经整理好啦～
https://url11.ctfile.com/d/45455611-167845092-9e8e41?p=6872 (访问密码: 6872)

#Python #数据结构 #算法面试 #LeetCode #程序员 #大厂面试

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  137. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
  138. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.001197s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001926s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000691s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000671s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001713s ]
  6. SELECT * FROM `set` [ RunTime:0.000646s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001525s ]
  8. SELECT * FROM `article` WHERE `id` = 512005 LIMIT 1 [ RunTime:0.008146s ]
  9. UPDATE `article` SET `lasttime` = 1787503058 WHERE `id` = 512005 [ RunTime:0.009861s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000752s ]
  11. SELECT * FROM `article` WHERE `id` < 512005 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001334s ]
  12. SELECT * FROM `article` WHERE `id` > 512005 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001097s ]
  13. SELECT * FROM `article` WHERE `id` < 512005 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001933s ]
  14. SELECT * FROM `article` WHERE `id` < 512005 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002252s ]
  15. SELECT * FROM `article` WHERE `id` < 512005 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003862s ]
0.211060s