对于运维人员或运维领域的开发人员来说，保持编码的竞技水平都是非常有必要的，这里列举了目前所有已知在线编程挑战网站的列表和他们的一些活动，对大家来说都是非常不错的去处。
本文翻译自：(http://www.mathblog.dk/programming-challenges/)
以下网站名称均可直接点击跳转到该网站首页
| Link | 题库 | 批改答案 | 每周编程活动 | 每年编程活动 |
|---|---|---|---|---|
| Project Euler | YES | YES | NO | NO |
| UVa Online Judge | YES | YES | NO | YES |
| Codeforces | YES | YES | YES | YES |
| TopCoder | YES | YES | YES | YES |
| Sphere Online Judge (SPOJ) | YES | YES | NO | YES |
| CodeChef | YES | YES | YES | YES |
| Light OJ | YES | YES | YES | YES |
| Timus Online Judge | YES | YES | NO | YES |
| SSU Online Contester | YES | YES | NO | YES |
| Tianjin University Online Judge | YES | YES | NO | YES |
| Google Code Jam | YES | YES | NO | YES |
| Internet Problem Solving Contest (IPSC) | YES | NO | NO | YES |
| Croatian Open Competition in Informatics (COCI) | YES | NO | NO | YES |
| USA Computing Olympiad (USACO) | YES | NO | NO | YES |
| International Olympiad in Informatics (IOI) | YES | NO | NO | NO |
| International Collegiate Programming Contest (ICPC) | YES | NO | NO | NO |
| ACM-ICPC Live Archive | YES | YES | NO | NO |
| Nordic Collegiate Programming Contest (NCPC) | YES | NO | NO | NO |
| HP CodeWars | YES | NO | NO | NO |
| HackerRank | YES | YES | YES | YES |
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