LeetCode explained

LeetCode, LLC
Type:Private
Industry:Software
Founded:August 7th, 2015
Hq Location:Palo Alto
Hq Location City:California
Hq Location Country:US

LeetCode, LLC d/b/a LeetCode is an online platform for coding interview preparation. The service provides coding and algorithmic problems intended for users to practice coding. LeetCode has gained popularity among job seekers and coding enthusiasts as a resource for technical interviews and coding competitions.[1] [2] [3] [4]

Features

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.[1] The performance of users' solutions is evaluated based on response speed and solution efficiency, and is ranked against other submissions in the LeetCode database.[5]

Additionally, LeetCode provides its users with mock interviews and online assessments. LeetCode hosts weekly and biweekly contests, each having 4 problems.[6] After you participate in a contest for the first time, you get assigned a ranking, which can be found in the profile.[7] LeetCode also provides its users with daily challenges, following UTC, with a lucky draw at the end of each month for those who stayed consistent for the month.[8]

LeetCode supports multiple programming languages, including Java, Python, JavaScript, and C.[9] The platform features forums where users can engage in discussions related to problems, the interview process, and share their interview experiences.[4]

Types of problems

Every question on LeetCode has a particular category or tag. Some of the most common tags include arrays, strings, two pointers, stacks, binary search, sliding windows, linked lists, trees, tries, backtracking, heaps, priority queues, graphs, breadth-first search, depth-first search, dynamic programming, greedy algorithms, bit manipulation, database problems, and math.[10] In total, LeetCode offers 3236 questions across its three levels of difficulty; with 801 questions categorized as easy, 1679 as medium, and 713 as hard.

History

LeetCode was founded in Silicon Valley in 2015 by Winston Tang.[11] [12] After moving to the US from Malaysia in 2005, Tang founded the company, citing his own experiences working at Amazon and Google as inspiration.[13]

LeetCode expanded its operations to China in 2018.[14] In 2021, LeetCode secured its first round of funding, receiving a $10 million investment from Lightspeed China Partners.[14]

See also

References

  1. News: Singer . Natasha . 2023-04-05 . For Lower-Income Students, Big Tech Internships Can Be Hard to Get . 2023-08-09 . The New York Times . en . To gear up for the assessments, many students practice their skills on LeetCode, a free test prep site that offers coding and algorithmic problems, along with detailed solutions. The site also offers premium services. For $35 a month, it gives members access to specific problems that companies like Amazon, Google and Microsoft previously used — and some continue to use — to assess applicants. To keep the questions up-to-date, the test prep service said, it regularly surveys members applying for tech positions..
  2. Web site: Ansari . Tasmia . 2022-11-17 . The Ultimate Guide to Cracking Data Science Interviews . 2023-06-10 . Analytics India Magazine . en-US.
  3. Web site: Kolakowski . Nick . 2022-12-08 . Which Programming Languages Are Growing? . 2023-06-10 . Dice Insights . en.
  4. Book: Sonmez, John . Programming Interviews For Dummies . Butow . Eric . 2019-09-11 . John Wiley & Sons . 978-1-119-56506-2 . en . LeetCode is also a popular site for programmers who want to get up to speed..
  5. Web site: Xing . Jessica . 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 . 2023-06-21 . Business Insider . en-US.
  6. Web site: LeetCode - The World's Leading Online Programming Learning Platform . 2023-10-10 . leetcode.com.
  7. Web site: Contest . 2023-10-10 . LeetCode . en.
  8. Web site: Loading... . 2023-12-09 . leetcode.com.
  9. Book: Nguyen, Nhan . Proceedings of the 19th International Conference on Mining Software Repositories . Nadi . Sarah . 2022-10-17 . Association for Computing Machinery . 978-1-4503-9303-4 . MSR '22 . New York, NY, USA . 1–5 . An empirical evaluation of GitHub copilot's code suggestions . 10.1145/3524842.3528470 . LeetCode questions come with test cases in various programming languages, ... (Python, Java, JavaScript, and C) . free.
  10. Web site: NeetCode.io . 2023-10-10 . neetcode.io.
  11. Web site: Secretary of State . 2024-03-21 . bizfileonline.sos.ca.gov.
  12. Web site: Curry . Rachel . 2024-06-24 . AI is shaping the fate of software engineers, but there is a new way to succeed . 2024-06-26 . CNBC . en.
  13. Web site: Tang . Winston . AI cannot replace software engineers—take it from someone who fought to become one and now helps others pursue the career . 2024-07-31 . Fortune . en.
  14. Web site: Shumin . Liao . IT Job Interview Prepper LeetCode Pockets USD10 Million From Lightspeed China . 2023-08-16 . www.yicaiglobal.com . en.

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