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Data Structures & Algorithms

Targeted practice on Data Structures & Algorithms interview questions
29 solved practice questions
Curated by ex-interviewers
Time efficient

Hone your computer science fundamentals by implementing important data structures and algorithms from scratch and practice the questions where algorithmic efficiency is key.

  • StackImplement a stack data structure containing the common stack methods
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  • QueueImplement a queue data structure containing the common queue methods
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  • NEW
    Linked ListImplement a linked list data structure containing the common linked list methods
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  • Binary TreeImplement a binary tree data structure including essential operations
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Data structures and algorithms interview questions for front end interviews

Data structures and algorithms have always been critical, yet often dreaded, components of software engineering interviews. While front end interviews typically focus on practical skills, there's always a possibility that your target company will include traditional data structures and algorithms questions in their technical coding round. That's why it's essential to be well-prepared for these types of questions, even if they aren't the primary focus of front end interviews.

To help you tackle these challenges, our Data Structures and Algorithms focus area offers targeted practice specifically designed for front end interviews. You'll cover key topics such as arrays, linked lists, trees, graphs, and essential algorithms like sorting and searching, all of which are crucial for success in technical coding interviews.

Key features

  1. Carefully crafted, high quality materials: Our platform offers top-tier materials, including questions, solutions, and test cases, all developed and curated by former interviewers from leading tech companies.
  2. Comprehensive and realistic: This focus area includes a wide range of realistic, high-impact data structures and algorithms interview questions that align with the latest trends in front end interviews.
  3. In-depth and clear solutions, targeted at front end engineers: Each question in this focus area is paired with a detailed, well-explained solution. These solutions not only provide the correct answers but also delve into the reasoning and strategies behind them, helping you build a strong foundation in data structures and algorithms—a critical component of front end JavaScript interviews and front end developer assessments. We've also solved every question in JavaScript / TypeScript, making it accessible to front end engineers.
  4. Realistic coding interview environment: Our in-browser coding workspace offers an environment that closely mimics the conditions of real front end coding interviews. This setup helps you become comfortable with the tools and scenarios you'll encounter during interviews focused on data structures, algorithms, and other key areas of front end development. Moreover, we've included several convenience features and shortcuts to optimize your practice sessions for maximum efficiency.
  5. Instant feedback with automated test cases: To maximize your learning experience, we offer one-click automated test cases that allow you to quickly assess your solutions. This instant feedback helps you identify and correct mistakes, ensuring continuous improvement as you prepare for front end engineer interviews or JavaScript coding interviews.