面试要求带一份sample code作为code review环节的材料，请教各位大牛有什么建议么
？能用leetcode的题么？
For the code review
portion, please send over a code sample of any code you've written
in the past. This code will be discussed in regards to what you
were trying to have the code do and why you chose to write the
syntax this way. Please be sure that this code does not violate any
NDA that you've signed with prior employers.
