Foundation·Concept·2 min read

Python DSA basics

WANT TO UNDERSTAND THE CONCEPT FIRST?Learn Python DSA basics

Common Python structures

list for arrays and dynamic storage
dict for key-value lookup
set for unique values
deque for stack and queue operations
heapq for priority queue
Counter for frequency counting
collections.defaultdict
bisect for sorted insertion and search

Interview guidance

Python gives very short code, but the logic must still be correct and efficient.

Adapted from 18_DSA_PYTHON.md · “1. Python DSA basics”. Code examples are study fragments. Difficulty and core labels are editorial estimates; version-specific behavior should be checked against your project.

Common Python structures

Interview guidance

Keep connecting the ideas

Arrays and strings in Python

Hashing and maps in Python

Linked list in Python