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Data Structures study resources

Free and paid data structures resources for implementation, visualization, and practice.

Optimized for Data Structures · CS students implementing lists, trees, and graphs.

Showing 8 resources

MIT OCW Introduction to Algorithms (6.006)

advanced

University course covering data structures with rigorous analysis.

CoursesFreeLecture course40-60 hours
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Khan Academy algorithms unit

beginner

Free intro lessons on structures and their operations.

CoursesFreeArticles + challenges10-15 hours
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VisuAlgo data structure visualizations

beginner

Interactive animations of trees, heaps, and hashing.

VisualizationFreeInteractive tool4-6 hours
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Tree-operation tracing worksheets

intermediate

Step-by-step rotation and rehash exercises.

VisualizationFreeWorksheets3-4 hours

LeetCode data structures track

intermediate

Implementation and application problems by structure.

Coding practiceFreeCoding problems15-25 hours
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Structure implementation project set

advanced

Build each structure from scratch with a test suite.

Coding practiceProjects10-15 hours

Big-O cheat sheet

beginner

Reference of time and space complexity per structure.

ReferenceFreeReference sheetOngoing

Bug-log template

beginner

A structured way to record defects and root causes.

ReferenceFreeTemplateOngoing

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Data Structures study resources
Focus target: Data Structures
Block 1 (25 min): closed-book recall or one timed practice set.
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