Sphere Online Judge (SPOJ)
SPOJ (Sphere Online Judge) is an online judge system with over 315,000 registered users and over 20000 problems. The solution to problems can be submitted in over 60 languages including C, C++, Java, Python, C#, Go, Haskell, Ocaml, and F#. SPOJ has a rapidly growing problem set/tasks available for practice 24 hours/day, including many original tasks prepared by the community of expert problem setters associated with the project. SPOJ (Sphere Online Judge) 是一个流行的在线判题系统，用于举办编程比赛和练习编程技能。它拥有超过 20,000 道编程题库，涵盖各种编程语言和难度级别。 SPOJ 的主要功能包括： * **题目库：**提供广泛的编程题目，从简单的入门题到高级的竞赛题。 * **提交代码：**用户可以提交用各种编程语言编写的解决方案。 * **自动判题：**系统会自动判断代码的正确性和效率。 * **实时排名：**用户可以查看自己与其他用户的排名和分数。 * **社区论坛：**提供一个活跃的社区论坛，用户可以在其中讨论题目、分享代码和寻求帮助。 SPOJ 是提高编程技能和准备编程竞赛的宝贵资源。其广泛的题目库、自动判题功能和社区支持使之成为初学者和经验丰富的程序员的理想平台。