Data Structure Tutorial
Learn Data Structure From Scratch
Learn data structures for coding interviews with arrays, linked lists, stacks, queues, hash tables, trees, heaps, graphs, tries, sorting, searching, and dynamic programming.
20Topics
100+Examples
FreeAlways
About Data Structure
Learn data structures for coding interviews with arrays, linked lists, stacks, queues, hash tables, trees, heaps, graphs, tries, sorting, searching, and dynamic programming.
Prerequisites
Basic computer knowledge is enough to start. Prior programming experience is helpful but not required.
Audience
Designed for beginners, students, interview preparation, and developers who want a clear Data Structure path.
What You'll Learn
Core concepts, examples, common mistakes, practical patterns, FAQs, and a step-by-step learning roadmap.
Tools Needed
Use a modern browser, code editor, terminal, and the available online compiler when supported.
Data Structure Learning Path
Implement and select data structures by operations, invariants, memory behavior, and workload evidence.
- Master linear structures and complexity
- Implement trees, heaps, hashing, graphs, and tries
- Test invariants and choose structures from workload needs
In-Memory Search Index
Build an index that combines hashing, a trie, priority queues, and graph relationships for prefix and ranked search.
Tutorial Topics
Follow the lessons in order, or jump straight into the topic you need.
Open this lesson in the Data Structure tutorial path.
2. Data Structure Roadmap
Lesson
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Open this lesson in the Data Structure tutorial path.
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Open this lesson in the Data Structure tutorial path.
7. Doubly Linked List
Lesson
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Open this lesson in the Data Structure tutorial path.
12. Binary Search Tree
Lesson
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Open this lesson in the Data Structure tutorial path.
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Open this lesson in the Data Structure tutorial path.
17. Sliding Window
Lesson
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18. Sorting Algorithms
Lesson
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19. Searching Algorithms
Lesson
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20. Dynamic Programming
Lesson
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Data Structure Topic Hub
Use the full topic workspace when you want tutorials, practice, interview prep, and nearby topic links in one place.
Open Data Structure topic hub
Tutorials, practice, and prep together
Topic hub
4 surfaces
Arrays and strings
Stacks and queues
Move from concept lessons into quiz checks, interview revision, and runnable examples from one hub.
Data Structure Benefits
- Build a strong foundation with clear explanations and examples.
- Practice concepts in a structured order instead of jumping randomly.
- Prepare for interviews with common mistakes, FAQs, and practical notes.
- Learn patterns that transfer to real projects and production work.
- Use one complete learning path from basics to advanced topics.