careercup扩展性存储限制

careercup-扩展性和存储限制10.4

如果考虑代码的通用性，也可以将32替换成sizeof(int)*8。代码如下：#include<iostream>using namespace std;class Bitmap{ public:Bitmap(int size=32){ bits=new int[size/32+1];}~Bitmap(){ delete[]bits;} bool get(int pos){/true if ...

careercup-扩展性和存储限制10.6

题目你有10亿个url，每个url对应一个非常大的网页。你怎么检测重复的网页？解答网页大，数量多，要把它们载入内存是不现实的。因此我们需要一个更简短的方式来表示这些网页。...此外，设计那么多机器，无疑大幅增加了系统的复杂性。

careercup-扩展性和存储限制10.3

40*10^8*4B=16GB(大约值，因为不是按照2的幂来做单位换算)这个明显无法一次性装入内存中。但是，如果我们用计算机中的一位来表示某个数出现与否，就可以减少内存使用量。比如在一块连续的内存区域，15出现，则将第15位置1。这个就是Bit Map...

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存储

阿里云是目前国内规模最大的云存储服务商，采用自研飞天大规模分布式存储引擎“盘古2.0”，支撑双11轻松度过吞吐TB/s，IOPS上亿/s的压力，为全球企业提供如磐石的可靠存储服务。

基础存储

数据存储

混合云存储