LRU(Least Recently Used) 出发点:在页式存储管理中,如果一页很长时间未被访问,则它在最近一段时间内也不会被访问,即时间局部性,那我们就把它调出(置换出)内存。 为了实现LRU淘汰算法,需要一些特殊的硬件支持。 三种可行方法 下面给出,栈法的实现代码: 原理: 运行截图: (似 ...
分类:
编程语言 时间:
2018-10-30 00:24:42
阅读次数:
304
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 ...
分类:
系统相关 时间:
2018-10-25 17:08:06
阅读次数:
181
题目: Farmer John likes to play mathematics games with his N cows. Recently, they are attracted by recursive sequences. In each turn, the cows would sta ...
分类:
其他好文 时间:
2018-10-11 01:31:11
阅读次数:
193
Berland National Library has recently been built in the capital of Berland. In addition, in the library you can take any of the collected works of Ber ...
分类:
其他好文 时间:
2018-10-06 00:01:00
阅读次数:
196
链表(上) @(数据结构与算法) 链表的经典应用场景: LRU 缓存淘汰算法。 缓存是一种提高数据读取性能的计数,如常见的:CPU 缓存,数据库缓存,浏览器缓存等。 缓存的大小有限,当缓存被用满时,那些数据应该被清理出去,那些数据应该保留,这就需要缓存淘汰策略算法来决定。常见得策略有三种:先进先出策 ...
分类:
其他好文 时间:
2018-10-04 15:23:13
阅读次数:
147
Recently, TeaTree acquire new knoledge gcd (Greatest Common Divisor), now she want to test you. As we know, TeaTree is a tree and her root is node 1, ...
分类:
其他好文 时间:
2018-10-01 00:14:38
阅读次数:
179
Alice is interesting in computation geometry problem recently. She found a interesting problem and solved it easily. Now she will give this problem to ...
分类:
其他好文 时间:
2018-09-24 22:17:19
阅读次数:
200
MPI Maelstrom Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 12087 Accepted: 7464 Description BIT has recently taken delivery of their new ...
分类:
其他好文 时间:
2018-09-08 22:34:21
阅读次数:
158
题目链接:https://nanti.jisuanke.com/t/28852 7998: Attack on Alpha-Zet 题目描述 Space pirate Captain Krys has recently acquired a map of the artificial and hig ...
分类:
其他好文 时间:
2018-09-07 22:03:16
阅读次数:
215
Compass Card Sales 题目描述 Katla has recently stopped playing the collectible card game Compass. As you might remember, Compass is a game where each card ...
分类:
其他好文 时间:
2018-09-07 21:35:02
阅读次数:
354