TopCoder 如何评估代码？
如果您熟悉 TopCoder，您就会知道您的源代码获得最终的“等级/分数”，这取决于时间、编译次数等，其中最高权重之一是性能。但是他们如何测试这一点，是否有某种简单的代码（java 或 c++）可以做到这一点，您可以分享给我来评估并希望编写自己的代码来测试我为大学编写的程序？
PS： 我对 topcoders 如何了解性能以及编写代码来测试性能都很感兴趣。
If you are familiar with TopCoder you know that your source-code gets a final "grade/points" this depends on time, how many compiles, etc, one of the highest weighted being performance. But how can they test that, is there some sort of simple code (java or c++) to do it that you could share for me to evaluate and hopefully write my own to test the programs I write for University?
This is sort of a follow up question to this one where I ask if shorter code results in best performance.
P.S: Im interested in both of how topcoders knows performance and writing code to test performance.
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他们有一个测试框架来测试您的代码并测量运行这些测试所需的时间。一旦您提交代码，TopCoders 机器将对其运行一定数量的测试用例。
没有人参与衡量性能。它们会自动测试仅在代码中花费了多少时间。
通常竞争对手都有本地测试框架，可以让他们很好地了解代码的性能。编写一个简单的测试框架应该不是一件太困难的任务。
They have a test framework that tests your code and measures the time it takes to run those tests. Once you submit your code, TopCoders machines will run a certain number of tests cases against it.
There is no human involved in measuring the performance. They test automatically how much time is spent only in your code.
Usually competitors have local test frameworks that gives them a pretty good idea of the performance of their code. Writing a simple test framework should not be a too difficult task.