分类: Others

通过CDN访问源站提示重定向的次数过多(阿里云)

CDN的回源端口设置为80,而源站又开启了HTTP重定向至HTTPS的功能,这样的话客户端无论是通过HTTP还是HTTPS访问CDN加速域名时,CDN在回源的时候都是使用HTTP请求源站,此时会触发源站的HTTPS强制跳转逻辑,然后源站会要求CDN重新发送一个HTTPS的请求,但是CDN仍然会发送HTTP请求,就会出现反复重定向问题。

Competitive Programming in Python: 128 Algorithms to Develop your Coding Skills

Want to kill it at your job interview in the tech industry? Want to win that coding competition? Learn all the algorithmic techniques and programming skills you need from two experienced coaches, problem setters, and jurors for coding competitions. The authors highlight the versatility of each algorithm by considering a variety of problems and show how to implement algorithms in simple and efficient code. Readers can expect to master 128 algorithms in Python and discover the right way to tackle a problem and quickly implement a solution of low complexity. Classic problems like Dijkstra’s shortest path algorithm and Knuth-Morris-Pratt’s string matching algorithm are featured alongside lesser known data structures like Fenwick trees and Knuth’s dancing links. The book provides a framework to tackle algorithmic problem solving, including: Definition, Complexity, Applications, Algorithm, Key Information, Implementation, Variants, In Practice, and Problems. Python code included in the book and on the companion website.