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LeetCode expanded its operations to China in 2018.<ref name=yicai>{{Cite web |first=Liao |last= Shumin |title=IT Job Interview Prepper LeetCode Pockets USD10 Million From Lightspeed China |url=https://www.yicaiglobal.com/news/it-job-interview-prepper-leetcode-pockets-usd10-million-from-lightspeed-china |access-date=2023-08-16 |website=www.yicaiglobal.com |language=en}}</ref> In 2021, LeetCode secured its first round of funding, receiving a $10 million investment from [[Lightspeed China Partners]].<ref name=yicai/>
== Types of Problems ==
Leetcode contains a diverse set of problems from different problem categories. These problems help interviewees prepare for their interviews by testing their algorithm and data structure knowledge. Currently, there are eighteen different categories that an interviwer could test your knowledge in. In no particular order, these are: Arrays, Two Pointers, Stack, Binary Search, Sliding Window, Linked List, Trees, Tries, Backtracking, Heaps/Priority Queues, Graphs, Dynamic Programming, Intervals, Greedy Algorithms, Bit Manipulation, and Math/Geometry.
In each problem category, there are three levels that a problem could be: easy, medium, and hard. If you are applying for an internship concurrently pursuing your undergraduate degree, then you will most likely encounter easy and medium questions - very rarely, will you be asked a hard leetcode question. If you are applying for a new-graduate offer - meaning that you previously graduated, and you want to work at a company - then you will be asked questions in the medium and hard range. There are 736 easy questions, 1521 medium questions, and 634 hard questions.
== The Interview Process ==
Depending on which company you are applying for, the amount of leetcode-style assessments that you will encounter can vary from one to five. For example, Google requires applicants to code through a series of five assessments. Three of these assessments are online, while two of them are whiteboard interviews.
== See also ==
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