在线编程测试题网站有哪些?

在线编程测试题网站有哪些?

CodeWars

Especially for phone screens, it’s important to exhibit a comfort with coding. I.e., once you come up with the algorithm, showing that you can code it out. CodeWars is a great practice problem website with a ton of excellent “kata”, small code challenges and finger exercises. Integrating 10-20 minutes of this in your morning routine will pay dividends in your code fluency in the long term.

Interactive practice problems

Hacker Rank

Formerly part of Interview Street’s code sprints, Hacker Rank has a nice selection of practice problems. They support over 20 programming languages and have a nice selection of questions for bit manipulation, sorting, string processing, dynamic programming and a handful of math-heavy problems.

Interview Cake

Interview Cake is a novel step-by-step interview problem walkthrough tool that simulates a realistic coding interview, giving you hints and challenging your answers along the way. But I’m biased—I guest-wrote one of the problems!

CodeEval

CodeEval supports 13 languages and has a selection of programming problems sponsored by individual employers—the sponsors are actually sent a copy of your solution and offered the chance to contact you.

CodeEval has roughly 100 problems of different difficulties, including a solid selection of classic programming interview questions. If you want a set of problems to go through in order, these are well written and very accessible.

TopCoder

TopCoder is an online programming competition which has been around for a long time. For most of TopCoder’s problems, you can only use Java, C++ and C#. Some challenges let you use Python.

The TopCoder problem database is practically endless. Start with a TopCoder HS Single Round Match (SRM) or two and then move on to a standard TopCoder SRM. The SRMs can take anywhere between 30 minutes and a couple of hours.

Read the solutions, but be wary of the code style used in these competitions. The hardcore competitors eschew sensical variable naming and instead compress their logic in a way that would make the author of Clean Codeshed a tear.

CodingBat (Java / Python only)

CodingBat is a great site for more novice developers to become more comfortable with iteration patterns, string manipulation and more.

The help and videos section has some excellent accessible explanations of some solutions and basic programming techniques.

Practice problem repositories

Programming puzzle sites

发表回复

您的电子邮箱地址不会被公开。