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LeetCode offers both free and premium access options. While free users have access to a limited number of questions, premium users gain access to additional questions previously used in interviews at large tech companies.<ref name=nytimes2023/> The performance of users' solutions is evaluated based on response speed and solution efficiency, and is ranked against other submissions in the LeetCode database.<ref>{{Cite web |last=Xing |first=Jessica |title=Here's what job seekers need to know about LeetCode, the coding-skills platform millions of developers use to ace the notoriously difficult technical interviews at firms such as Apple, Amazon, and Google |url=https://www.businessinsider.com/leetcode-coding-test-apple-amazon-google-technical-interview-prep-job-2021-11 |access-date=2023-06-21 |website=Business Insider |language=en-US}}</ref>
LeetCode contests are competitive events that provide a platform for coders around the world to test and enhance their algorithmic skills. By participating, you can win LeetCode coins which can be exchanged for a LeetCode T-shirt, a premium membership and more.<ref name="dummies" /> LeetCode hosts weekly and biweekly contests, each having 4 problems to solve in 90 minutes. After you participate in a contest for the first time, you get assigned a ranking, which can be found in the profile. This rating is updated within 5 working days after the contest.
LeetCode supports multiple programming languages, including [[Java (programming language)|Java]], [[Python (programming language)|Python]], [[JavaScript]], and [[C (programming language)|C]].<ref>{{Cite book |last1=Nguyen |first1=Nhan |last2=Nadi |first2=Sarah |title=Proceedings of the 19th International Conference on Mining Software Repositories |chapter=An empirical evaluation of GitHub copilot's code suggestions |date=2022-10-17 |series=MSR '22 |___location=New York, NY, USA |publisher=Association for Computing Machinery |pages=1–5 |doi=10.1145/3524842.3528470 |isbn=978-1-4503-9303-4 |quote=LeetCode questions come with test cases in various programming languages, ... (Python, Java, JavaScript, and C)|doi-access=free }}</ref> The platform features forums where users can engage in discussions related to challenging problems, the interview process, and share their interview experiences.<ref name=dummies/>
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