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# 即学即练|操作系统篇:复习卡 & 算法题特训
你好,我是微扰君。初三好!
今天是我们春节特别策划的第三期。
你可以借助整理好的要点卡片快速回顾这四大章的要点内容。复习完知识点当然也需要有对应的LeetCode练习题供你练手复习巩固你可以点击必知必会算法题链接检验一下自己的掌握情况如果发现自己哪里还不太明白可以回到相应章节有针对性地复习。
## 操作系统篇
今天我们来复习&练习专栏的第三章,**操作系统篇**。在这个模块里,我们一起学习了调度算法、页面置换算法、日志文件系统这三个内容。
### 必知必会力扣题
* 题目名 432. 全O(1) 数据结构
题目链接:[https://leetcode-cn.com/problems/all-oone-data-structure/](https://leetcode-cn.com/problems/all-oone-data-structure/)
题解思路:[十字链表,也是 LFU 的常见实现方式](https://leetcode-cn.com/problems/all-oone-data-structure/solution/wei-rao-li-lun-shi-zi-lian-biao-by-wfnus-9cr9/)
* 题目名 146. LRU 缓存
题目链接:[https://leetcode-cn.com/problems/all-oone-data-structure/](https://leetcode-cn.com/problems/all-oone-data-structure/)
题解思路:可以直接参考官方题解,[我用Golang实现了一个基于LRU的分布式缓存](http://github.com/wfnuser/burrow)
* 题目名 1701. 平均等待时间
题目链接:[https://leetcode-cn.com/problems/average-waiting-time/solution/](https://leetcode-cn.com/problems/average-waiting-time/solution/)
题解思路:先来先服务策略
* 题目名 1166. 设计文件系统
题目链接:[https://leetcode-cn.com/problems/design-file-system/](https://leetcode-cn.com/problems/design-file-system/)
题解思路:字典树、哈希表
### 复习要点卡
点击要点卡,直达你最需要复习的那篇。
[![图片](https://static001.geekbang.org/resource/image/4c/49/4c2de65435f492804e32105187ab8f49.jpg?wh=1242x2208)](https://time.geekbang.org/column/article/476869)
[![图片](https://static001.geekbang.org/resource/image/a1/01/a1318d3a8edcb52ebbc46f644f299701.jpg?wh=1242x2208)](https://time.geekbang.org/column/article/477414)
[![图片](https://static001.geekbang.org/resource/image/60/f7/609534973955216fb5c7103596e61ff7.jpg?wh=1242x2208)](https://time.geekbang.org/column/article/478396)
* * *
复习&练习的过程中如果有什么困惑获得了什么收获都欢迎你留言讨论。做完题目之后欢迎你把复习卡和你的LeetCode题解分享给你的朋友。
学习愉快,我们下期见~