How many integers can I create in 1GB memory?

心已入冬 提交于 2019-12-30 19:20:36

问题


In book Algorithms fourth edition by Robert Sedgewick on page 200, it says "for example, if you have 1GB of memory on your computer (1 billion bytes), you cannot fit more than about 32 million int values."

I got confused after my calculation: 1,000,000,000 bytes/4 bytes = 250 million

How the author got 32 million?

The book describes like below:


回答1:


The author has acknowledged that this is an error in this book website, please refer to the link as follows: http://algs4.cs.princeton.edu/errata/errata-printing3.php




回答2:


1 gigabit = 1073741824 bit
1 int = 32 bit
calculation = (1073741824/32) = (32 * 10242) = (32 * 220) = 32 million

If author meant gigabytes then answer would be (32 * 8) million = 256 million



来源:https://stackoverflow.com/questions/35550851/how-many-integers-can-i-create-in-1gb-memory

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!