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Only Data Structures & Algorithms lessons and questions
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Technologies1
Data Structures & Algorithms
75 lessonsLearn the patterns behind interview problems, then implement them in JavaScript, Java, C#/.NET, or Python.
Lessons12
Python DSA basics
2 min · FoundationCommon Python structures
Stack and queue in Python
2 min · IntermediateStack
Linked list in Python
2 min · FoundationNode structure
Trees and BST in Python
2 min · IntermediateTree node
Graphs in Python
2 min · IntermediateGraph representation
Arrays and strings in Python
2 min · FoundationCommon questions
Hashing and maps in Python
2 min · FoundationWhy it matters
Recursion and backtracking in Python
2 min · IntermediateCommon questions
Heap and priority queue in Python
2 min · IntermediateBuilt-in heapq
Dynamic programming in Python
2 min · IntermediateCommon questions
Binary search and greedy in Python
2 min · IntermediateBinary search
Sliding window and two pointers in Python
2 min · IntermediateCommon questions
Interview questions12
Python DSA basics
Data Structures & AlgorithmsCommon Python structures
Stack and queue in Python
Data Structures & AlgorithmsStack
Linked list in Python
Data Structures & AlgorithmsNode structure
Trees and BST in Python
Data Structures & AlgorithmsTree node
Graphs in Python
Data Structures & AlgorithmsGraph representation
Arrays and strings in Python
Data Structures & AlgorithmsCommon questions
Hashing and maps in Python
Data Structures & AlgorithmsWhy it matters
Recursion and backtracking in Python
Data Structures & AlgorithmsCommon questions
Heap and priority queue in Python
Data Structures & AlgorithmsBuilt-in heapq
Dynamic programming in Python
Data Structures & AlgorithmsCommon questions
Binary search and greedy in Python
Data Structures & AlgorithmsBinary search
Sliding window and two pointers in Python
Data Structures & AlgorithmsCommon questions
Modules1
Python implementations
14 lessonsData Structures & Algorithms learning module