好久没写东西了，随便灌点水充充门面。
最近总出题，作为一道比较正规的题目，它的题目包中应包含以下部分，我认为：
[] means '1 or more'
* means '0 is okay'
| means 'or'
*[Problem Description(zh_cn)]
Problem Description(en_us)
Additional Parts(img or others)
Data Generator(py or cpp or whatever)
Data(data.in and data.out)
*[Data Checker(py or cpp)]
*[Standard Program(brute-force)]//maybe the same as the one just above
*[Standard Program(AC with no STL)]
Standard Program(AC with total STL)
*[Standard Program(others')](For Check)
[Solution Report(zh_cn | en_us)]