LeetCode: Difference between revisions

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{{short description|Online platform for coding interview preparation}}

{{Infobox companywebsite

| name = LeetCode, LLC

| logo = [[File:LeetCode Logo black with text.svg|250px]]

| type = [[Privately held company|Private]]

| industry = Software

|owner = Leetcode LLC

| founded = August7 7th,August 2015

| founder = Winston Tang

| hq_locationlocation_city = [[Palo Alto]], [[California]]

| hq_location_citylocation_country = [[CaliforniaUnited States|US]]

| hq_location_country = [[United States|US]]

| key_people = Hercy Chang (CEO)

|num_employees_year num_employees = 264 (2025)<ref>[https://leadiq.com/c/leetcode/5a6861465700003b015b2278/employee-directory LeetCode Employee Directory, Headcount &amp; Staff] ''LeadIQ''</ref>

| num_employees = 264

|num_employees_year=2025<ref>[https://leadiq.com/c/leetcode/5a6861465700003b015b2278/employee-directory LeetCode Employee Directory, Headcount &amp; Staff] ''LeadIQ''</ref>

|revenue = US$8 million<ref>[https://siliconvalleyjournals.com/company/leetcode LeetCode: Contact Details, Revenue, Funding, Employees and Company Profile]

''Silicon Valley Journal''</ref> (2024)

|revenue_year=2024

| website = * {{official website|2=leetcode.com}}

* {{official website||2=leetcode.cn}} (in Chinese)

}}

'''LeetCode LLC''', [[doing business as]] '''LeetCode''', is an [[online discussion platform|online platform]] for [[Coding interview|coding interview]] preparation. The platform provides coding and algorithmic problems intended for users to practice [[Software development|coding]].<ref name=nytimes2023/> LeetCode has gained popularity among job seekers in the [[software industry]] and coding enthusiasts as a resource for technical interviews and coding competitions.<ref name="nytimes2023">{{Cite news |last=Singer |first=Natasha |date=2023-04-05 |title=For Lower-Income Students, Big Tech Internships Can Be Hard to Get |url=https://www.nytimes.com/2023/04/05/business/tech-internship-application-grind.html |access-date=2023-08-09 |work=The New York Times |language=en |quote=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.}}</ref><ref name=":0">{{Cite web |last=Ansari |first=Tasmia |date=2022-11-17 |title=The Ultimate Guide to Cracking Data Science Interviews |url=https://analyticsindiamag.com/the-ultimate-guide-to-cracking-data-science-interviews/ |access-date=2023-06-10 |website=Analytics India Magazine |language=en-US}}</ref><ref>{{Cite web |last=Kolakowski |first=Nick |date=2022-12-08 |title=Which Programming Languages Are Growing? |url=https://www.dice.com/career-advice/which-programming-languages-are-growing |access-date=2023-06-10 |website=Dice Insights |language=en}}</ref><ref name="dummies">{{Cite book |last=Sonmez |first=John |url=https://books.google.com/books?id=rEOvDwAAQBAJ&dq=LeetCode&pg=PA108 |title=Programming Interviews For Dummies |last2=Butow |first2=Eric |date=2019-09-11 |publisher=John Wiley & Sons |isbn=978-1-119-56506-2 |language=en |quote=LeetCode is also a popular site for programmers who want to get up to speed.}}</ref><ref>{{Citation |last=Harper |first=Jocelyn |title=Interview Insight: How to Get the Job |date=2023 |work=A Software Engineer's Guide to Seniority: A Guide to Technical Leadership |pages=19–28 |editor-last=Harper |editor-first=Jocelyn |url=https://doi.org/10.1007/978-1-4842-8783-5_4 |access-date=2023-08-11 |place=Berkeley, CA |publisher=Apress |language=en |doi=10.1007/978-1-4842-8783-5_4 |isbn=978-1-4842-8783-5 |quote=LeetCode is a platform that specializes in algorithm questions ranked from “Easy” to “Hard” based on the complexity of the subject and solution. They also have a forum where people share what interview questions they encountered in phone screens and on-site interviews to share with the larger public and to help software engineers prepare. I have been fortunate that the only time that I encountered a LeetCode problem during a screening process was for Amazon. ... On this last interviewing journey, I found myself enjoying practicing algorithm coding questions because I found alternative resources to LeetCode.|url-access=subscription }}</ref> As of 2025, the website has 26.3 million monthly visitors.<ref>[https://www.similarweb.com/website/leetcode.com leetcode.com Traffic analytics, ranking & audience (May 2025)] ''[[Similarweb]]''</ref>

'''LeetCode LLC''', [[doing business as]] '''LeetCode''', is an [[online discussion platform|online platform]] for coding interview preparation. The platform provides coding and algorithmic problems intended for users to practice [[Software development|coding]].<ref name=nytimes2023/> LeetCode has gained popularity among job seekers in the [[software industry]] and coding enthusiasts as a resource for technical interviews and coding competitions.<ref name="nytimes2023">{{Cite news |last=Singer |first=Natasha |date=2023-04-05 |title=For Lower-Income Students, Big Tech Internships Can Be Hard to Get |url=https://www.nytimes.com/2023/04/05/business/tech-internship-application-grind.html |access-date=2023-08-09 |work=The New York Times |language=en |quote=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.}}</ref><ref name=":0">{{Cite web |last=Ansari |first=Tasmia |date=2022-11-17 |title=The Ultimate Guide to Cracking Data Science Interviews |url=https://analyticsindiamag.com/the-ultimate-guide-to-cracking-data-science-interviews/ |access-date=2023-06-10 |website=Analytics India Magazine |language=en-US}}</ref><ref>{{Cite web |last=Kolakowski |first=Nick |date=2022-12-08 |title=Which Programming Languages Are Growing? |url=https://www.dice.com/career-advice/which-programming-languages-are-growing |access-date=2023-06-10 |website=Dice Insights |language=en}}</ref><ref name="dummies">{{Cite book |last=Sonmez |first=John |url=https://books.google.com/books?id=rEOvDwAAQBAJ&dq=LeetCode&pg=PA108 |title=Programming Interviews For Dummies |last2=Butow |first2=Eric |date=2019-09-11 |publisher=John Wiley & Sons |isbn=978-1-119-56506-2 |language=en |quote=LeetCode is also a popular site for programmers who want to get up to speed.}}</ref><ref>{{Citation |last=Harper |first=Jocelyn |title=Interview Insight: How to Get the Job |date=2023 |work=A Software Engineer's Guide to Seniority: A Guide to Technical Leadership |pages=19–28 |editor-last=Harper |editor-first=Jocelyn |url=https://doi.org/10.1007/978-1-4842-8783-5_4 |access-date=2023-08-11 |place=Berkeley, CA |publisher=Apress |language=en |doi=10.1007/978-1-4842-8783-5_4 |isbn=978-1-4842-8783-5 |quote=LeetCode is a platform that specializes in algorithm questions ranked from “Easy” to “Hard” based on the complexity of the subject and solution. They also have a forum where people share what interview questions they encountered in phone screens and on-site interviews to share with the larger public and to help software engineers prepare. I have been fortunate that the only time that I encountered a LeetCode problem during a screening process was for Amazon. ... On this last interviewing journey, I found myself enjoying practicing algorithm coding questions because I found alternative resources to LeetCode.|url-access=subscription }}</ref> As of 2025, the website has 26.3 million monthly visitors.<ref>[https://www.similarweb.com/website/leetcode.com leetcode.com Traffic analytics, ranking & audience (May 2025)] ''[[Similarweb]]''</ref>

== Features ==