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Data Structures & Algorithms for Beginners
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Explore Data Structures
Data StructureBeginner
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Arrays
A row of lockers for your data
π§© 10 LeetCodeβ±οΈ 3β5 hours
Data StructureBeginner
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Linked List
Connected nodes forming a chain
π§© 10 LeetCodeβ±οΈ 4β6 hours
Data StructureBeginner
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Stacks
Last In First Out structure
π§© 10 LeetCodeβ±οΈ 3β4 hours
Data StructureBeginner
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Queues
First In First Out structure
π§© 10 LeetCodeβ±οΈ 3β4 hours
Data StructureBeginner
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HashMap & HashSet
Fast lookup using keys
π§© 10 LeetCodeβ±οΈ 4β6 hours
Data StructureIntermediate
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Binary Trees
Hierarchical node-based structure
π§© 10 LeetCodeβ±οΈ 6β8 hours
Data StructureIntermediate
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Heaps
Priority-based tree structure
π§© 10 LeetCodeβ±οΈ 5β7 hours
Data StructureIntermediate
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Graphs (BFS/DFS)
Nodes connected with edges
π§© 10 LeetCodeβ±οΈ 6β9 hours
Data StructureAdvanced
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AVL Trees
Self-balancing binary search trees
π§© 10 LeetCodeβ±οΈ 8β12 hours
Data StructureAdvanced
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Tries
Prefix-based word lookup tree
π§© 10 LeetCodeβ±οΈ 6β10 hours
Explore Algorithms
AlgorithmBeginner
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Sorting Algorithms
Arrange data in order
π§© 10 LeetCodeβ±οΈ 6β10 hours
AlgorithmBeginner
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Search Algorithms
Find items efficiently
π§© 10 LeetCodeβ±οΈ 5β9 hours
AlgorithmBeginner
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String Manipulation
Transform and analyze text
π§© 10 LeetCodeβ±οΈ 6β10 hours
AlgorithmAdvanced
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Advanced Graph Algorithms
Shortest paths and connectivity
π§© 10 LeetCodeβ±οΈ 8β15 hours