GateXAIML · DSA Concept Notes
Data Structures & Algorithms
Pure concept notes for Chapters 1–10 (Algorithm Analysis through Searching & Sorting) — definitions, worked examples, diagrams and Python code, with GATE PYQs and practice problems left out. Pick a chapter from the sidebar or below.
Chapter 1
Algorithm Analysis
Introduction, Core Algorithmic Paradigms, Analysis Framework...
Chapter 2
Stacks
Core Operations, Applications of Stacks
Chapter 3
Queues
Core Operations, Applications of Queues
Chapter 4
Linked Lists
Singly Linked List, Doubly Linked List, Circular Linked List...
Chapter 5
Trees
Terminology and Structure, Binary Tree Formulas, Theorems and Structural Properties of Binary Trees...
Chapter 6
Hash Tables
Hash Functions and Load Factor, Collision Resolution, Performance Analysis
Chapter 7
Graph Theory — Introduction
Basic Definitions, Graph Representations
Chapter 8
Graph Traversals
Breadth-First Search (BFS), Depth-First Search (DFS), Topological Sort
Chapter 9
Shortest Path Algorithms
Single-Source: Dijkstra's Algorithm, Single-Source: Bellman-Ford Algorithm, All-Pairs: Floyd-Warshall Algorithm...
Chapter 10
Searching and Sorting
Search Algorithms, Basic (Quadratic) Sorting, Divide and Conquer Sorting...