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[LeetCode] 146. LRU Cache 最近最少使用页面置换缓存器

Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and put. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1.put(…

[LeetCode] LRU Cache 最近最少使用页面置换缓存器

Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1. set…

146 LRU Cache 最近最少使用页面置换算法

设计和实现一个  LRU(最近最少使用)缓存 数据结构,使它应该支持以下操作: get 和 put .get(key) - 如果密钥存在于缓存中,则获取密钥的值(总是正数),否则返回 -1.put(key, value) - 如果密钥不存在,请设置或插入值.当缓存达到其容量时,它应该在插入新项目之前使最近最少使用的项目作废.后续:你是否可以在 O(1) 时间复杂度中进行两种操作?案例:LRUCache cache = new LRUCache( 2 /* 容量 */ );cache.put(1,…

[LeetCode] 460. LFU Cache 最近最不常用页面置换缓存器

Design and implement a data structure for Least Frequently Used (LFU) cache. It should support the following operations: get and put. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1.pu…

[LeetCode] LFU Cache 最近最不常用页面置换缓存器

Design and implement a data structure for Least Frequently Used (LFU) cache. It should support the following operations: get and put. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1.pu…

[LeetCode] 146. LRU Cache 近期最少使用缓存

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leetcode 146. LRU Cache 、460. LFU Cache

LRU算法是首先淘汰最长时间未被使用的页面,而LFU是先淘汰一定时间内被访问次数最少的页面,如果存在使用频度相同的多个项目,则移除最近最少使用(Least Recently Used)的项目. LFU在频度相同的时候与LRU类似. 146. LRU Cache 1.stl中list是双向链表,slist才是单向链表. rbegin():返回尾元素的逆向迭代器指针 end():返回尾元素之后位置的迭代器指针 https://www.cnblogs.com/Kobe10/p/5780095.html…

LeetCode之LRU Cache 最近最少使用算法 缓存设计

设计并实现最近最久未使用(Least Recently Used)缓存. 题目描述: Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the key if the key ex…

Java for LeetCode 146 LRU Cache 【HARD】

Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1. set…

leetcode@ [146] LRU Cache (TreeMap)

https://leetcode.com/problems/lru-cache/ Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of the key if the key exis…