--- title: Best Data Structures posts — February 2023 | daily.dev description: The most upvoted Data Structures posts from February 2023, curated by the daily.dev community. canonical: https://daily.dev/tags/data-structures/best-of/2023/02 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/tags/data-structures/best-of/2023/02 og:type: website og:site_name: daily.dev og:title: Best Data Structures posts — February 2023 | daily.dev og:description: The most upvoted Data Structures posts from February 2023, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of Data Structures — February 2023 1. 1 [](https://daily.dev/posts/from-zero-to-hero-leetcode-litvid2io "From Zero to Hero: LeetCode") Article habr · 4y From Zero to Hero: LeetCode The post provides a breakdown of different levels of LeetCode problem-solving and offers tips for progressing to the next level. It emphasizes the importance of practice, studying algorithms and data structures, and improving communication skills for interviews. 88 9 2. 2 [](https://daily.dev/posts/best-coding-interview-question-of-all-time--id7edpvyy "Best coding interview question of all time.") Article Community Picks · 4y Best coding interview question of all time. This post discusses the best coding interview question of all time, which is about finding a duplicate number in an array. It covers various aspects of the problem, including clarification questions, optimal solutions using HashMap and array index, and additional constraints like immutable arrays. The post also highlights the importance of competence, creativity, and attitude in solving algorithmic problems during interviews. 71 8 3. 3 [](https://daily.dev/posts/ep-44-how-does-chatgpt-work--u4cx4w372 "EP 44: How does ChatGPT work?") Article ByteByteGo · 4y EP 44: How does ChatGPT work? Explains how ChatGPT works and how the cloud can save costs. 54 3 4. 4 [](https://daily.dev/posts/clean-coder-blog-coutnzhyl "Clean Coder Blog") Article Community Picks · 4y Clean Coder Blog The post discusses various software architectures, such as Hexagonal Architecture and Onion Architecture, which aim to separate concerns in systems. It emphasizes the importance of the Dependency Rule and explains the different layers within the architecture. 37 3 [See all Data Structures archives](/tags/data-structures/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/tags/data-structures/best-of/2023/02#page","url":"https://daily.dev/tags/data-structures/best-of/2023/02","name":"Best Data Structures Posts — February 2023","description":"The most upvoted Data Structures posts from February 2023, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/tags/data-structures/best-of/2023/02#items","numberOfItems":4,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/from-zero-to-hero-leetcode-litvid2io","name":"From Zero to Hero: LeetCode"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/best-coding-interview-question-of-all-time--id7edpvyy","name":"Best coding interview question of all time."},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/ep-44-how-does-chatgpt-work--u4cx4w372","name":"EP 44: How does ChatGPT work?"},{"@type":"ListItem","position":4,"url":"https://daily.dev/posts/clean-coder-blog-coutnzhyl","name":"Clean Coder Blog"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Tags","item":"https://daily.dev/tags"},{"@type":"ListItem","position":3,"name":"Data Structures","item":"https://daily.dev/tags/data-structures"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/tags/data-structures/best-of"},{"@type":"ListItem","position":5,"name":"February 2023"}]}]} ```