yelianggdufs的博客

doc版本 可编辑 730 db2 绝对超值

vb编写的非常使用的排序软件 包括文件 字符 数字 等排序 非常好用 使用价值强

麻省理工的算法课 经典得很 Problem 1. Analyzing auction sites Professor Greenwood consults for Wall Street analysts who follow electronic auction sites, such as eBay and Yahoo!Auctions. The professor has developed a tool which can “walk” an auction site and produce a list of all products available for sale, their price, and the quantity of the product available. (Each product is uniquely identified by an integer key which is embedded in the HTML of the site but not displayed.) The professor runs the tool daily to produce this product information, which he emails to the analysts. The analysts would like to understand the activity of an auction site better. Consequently, they have asked the professor to provide them daily with two additional lists: