AlgoVizual - DSA Foundations & Core Patterns ( Version 1 )

Beginner friendly PDF notes that explain how to think in Data Structures & Algorithms.

Covers core patterns like arrays, subarrays, prefix sum, sliding window, HashMap usage, frequency tricks, and LRU cache, explained using simple language and hand-drawn visual notes. Built for learners who want clarity and intuition before coding.

Best for: Beginners & interview prep

AlgoVizual : Understand first. Code later.