The most visited forums and websites by programmers

 

http://stackoverflow.com/        Stack Overflow 

http://home.51cto.com          51CTOHome

http://www.csdn.net/           CSDNForum

http://www.oschina.net/Open Source China      

Code cloud

https://github.com/

https://gitee.com/             GitHub 

http://readwrite.com/2015/08/12/good-code-testing/

https://about.gitlab.com/  GitLab is an open source project for warehouse management systems

https://www.bitbucket.org/ BitBucket     is a source code hosting site that uses Mercurial and Git as a distributed version control system, and offers both commercial plans and free accounts

JS1K:  Mainly an open source competitive project for front-end JS

 

Algorithm website:

Algorithm website: http://www.csie.ntnu.edu.tw/~u91029/index.html

 

Program design competitions worth participating in:

1. National Youth Informatics Olympic Competition

http://www.noi.cn/

1. ACM Undergraduate Programming Competition (ACM-ICPC)

http://livearchve.onlinejudge.org/

Competition time: 5 hours, a group of 3 participants , usually 8-10 questions , solved by a computer

1. TopCoder ( 3 mini-contests per month)

http://www.topcoder.com/tc

1. Google Code Jam

https://code.google.com/codejam

 

Other online competition mock exams:

1. TopCoder (hosts contests online)

http://www.topcoder.com/tc

1. Codeforce ( Russian programming competition exchange platform)

http://codeforces.com

Games are held more frequently

1. University of Valladolid Online Scoring Site

http://uva.onlinejudge.org

The function is slightly behind, but the frequently held mock exam questions are issued by the judges in the final stage of ACM-ICPC

 

Online grading site:

1. USACO Training Program (for beginners and intermediates)

http://train.usaco.org/usacogate

The included topics are sorted by difficulty, and the content of the lectures was previously provided to users.

1. TopCoder (for intermediate people)

http://www.topcoder.com/tc

The competition arena of the website has a practice platform for practicing past real questions and scoring

1. ACM-ICPC Live Archive ( suitable for intermediate personnel)

http://livearchve.onlinejudge.org/

The ACM-ICPC regional competition questions and world finals questions of various countries are included, and these questions are scored

1. Project Euler (for intermediates)

http://projecteuler.net

Covers topics related to mathematics and algorithms. Competitors can execute the program on their own computer and receive a score just by submitting the results

1. SPOJ Online Judge (for advanced personnel)

http://spoj.pl

A large number of high-level topics are included

 

 

1. Leetcode is suitable for primary questions [membership system]

 

 

 

 

 

 

 

No public:

1. InfoQ
2. Ali Technology
3. algorithm enthusiast
4. SegmentFault think no
5. wild dog
6. Turing Education
7. CSDN
8. Open Source China
9. google developer
10. 51CTO
11. Meituan Dianping Technical Team
12. Shisugi's Architecture Notes [the next 2 years]