When the cache reached its capacity, it should invalidate the least recently used item before inserting a new item. LRU是一种应用在操作系统上的缓存替换策略,和我们常见的FIFO算法一样,都是用于操作系统中内存管理中的页面替换,其全称叫做Least Recently Used(近期最少使用算法),算法主要是根据数据的历史访...
otherwisereturn-1.set(key, value) - Set or insert the valueifthe keyisnot already present. When the cache reached its capacity, it should invalidate the least
lRUCache.get(1); // 返回 1 lRUCache.put(3, 3); // 该操作会使得关键字 2 作废,缓存是 {1=1, 3=3} lRUCache.get(2); // 返回 -1 (未找到) lRUCache.put(4, 4); // 该操作会使得关键字 1 作废,缓存是 {4=4, 3=3} lRUCache.get(1); // 返回 -1 (未找到) lRUCache.get(3...
Design and implement a data structure forLeast Recently Used (LRU) cache. It should support the following operations:getandput. get(key)- Get the value (will always be positive) of the key if the key exists in the cache, otherwise return -1. put(key, value)- Set or insert the value ...
Can you solve this real interview question? LRU Cache - Design a data structure that follows the constraints of a Least Recently Used (LRU) cache [https://en.wikipedia.org/wiki/Cache_replacement_policies#LRU]. Implement the LRUCache class: * LRUCache(
【Leetcode】146.LRU缓存机制 题目 运用你所掌握的数据结构,设计和实现一个 LRU (最近最少使用) 缓存机制。它应该支持以下操作: 获取数据 get 和 写入数据 put 。 获取数据 get(key) - 如果密钥 (key) 存在于缓存中,则获取密钥的值(总是正数),否则返回 -1。 写入数据 put(key, value) - 如果密钥不...
Can you solve this real interview question? LRU Cache - Design a data structure that follows the constraints of a Least Recently Used (LRU) cache [https://en.wikipedia.org/wiki/Cache_replacement_policies#LRU]. Implement the LRUCache class: * LRUCache(
题目链接 : https://leetcode-cn.com/problems/lru-cache/题目描述:运用你所掌握的数据结构,设计和实现一个 LRU (最近最少使用) 缓存机制。它应该支持以下操作: 获取数据 get 和 写入数据 put 。 获取数据 get(k…
classLRUCache{ public: LRUCache(intcapacity) { } intget(intkey) { } voidput(intkey,intvalue) { } }; /** * Your LRUCache object will be instantiated and called as such: * LRUCache* obj = new LRUCache(capacity); * int param_1 = obj->get(key); ...
1.1 LRUCache(int capacity)以正整数作为容量capacity初始化LRU缓存个数 1.2 int get(int key) 如果key关键字存在于缓存中,则返回关键字的值,否则返回-1 1.3 void put(int key, int value)如果关键字已经存在,则变更其数据值,如果关键字不存在,则插入改组关键字。当缓存容量达到上限时,他应该在写入新数据之前...