Practical Data Structures & Algorithms for Software Engineering Interviews

Master essential data structures and algorithms, optimize problem-solving strategies, and ace technical interviews to become a top-tier software engineer.

Introduction to DSA and Big O Notation

Unit 1: Foundations of DSA

Unit 2: Measuring Algorithm Efficiency

Unit 3: Practical Application of Big O

Arrays and Strings Fundamentals

Unit 1: Array Basics: The Building Block

Unit 2: String Essentials: Text as Data

Unit 3: Fundamental Array & String Algorithms

Advanced Array Techniques

Unit 1: Efficient Array Traversal

Unit 2: Sub-array and Sub-string Problems

Unit 3: Optimizing Range Queries

Unit 4: Array Manipulation & Analysis

Linked Lists: Singly and Doubly

Unit 1: Singly Linked Lists: The Basics

Unit 2: Doubly Linked Lists: Two-Way Street

Circular Linked Lists and Advanced Problems

Unit 1: Circular Linked Lists

Unit 2: Advanced Linked List Manipulations

Stacks: LIFO Data Structure

Unit 1: Stack Fundamentals

Unit 2: Stack Applications

Queues: FIFO Data Structure

Unit 1: Queue Fundamentals

Unit 2: Queue Implementations

Unit 3: Advanced Queue Types

Unit 4: Queue Applications

Hash Tables and Hash Maps

Unit 1: Hashing Fundamentals

Unit 2: Hash Functions and Collisions

Unit 3: Basic Hash Table Operations

Unit 4: Performance Analysis

Advanced Hashing Techniques

Unit 1: Collision Resolution Strategies

Unit 2: Optimizing Hash Table Performance

Unit 3: Hash Sets vs. Hash Maps

Unit 4: Practical Applications of Hashing

Introduction to Trees

Unit 1: Tree Fundamentals

Unit 2: Tree Traversal Techniques

Unit 3: Analyzing Tree Operations

Binary Search Trees (BSTs)

Unit 1: BST Fundamentals

Unit 2: Core BST Operations

Unit 3: BST Analysis and Applications

Balanced Binary Search Trees (AVL & Red-Black)

Unit 1: The Need for Balance

Unit 2: Introducing AVL Trees

Unit 3: Introducing Red-Black Trees

Unit 4: Comparing Balanced Trees

Heaps: Priority Queues

Unit 1: Heap Fundamentals

Unit 2: Core Heap Operations

Unit 3: Heaps as Priority Queues

Unit 4: Heap Applications

Tries (Prefix Trees)

Unit 1: Trie Fundamentals

Unit 2: Core Trie Operations

Unit 3: Trie Applications & Analysis

Graphs: Representation and Traversal

Unit 1: Graph Fundamentals

Unit 2: Representing Graphs

Unit 3: Graph Traversal Algorithms

Graph Algorithms: Shortest Paths

Unit 1: Introduction to Shortest Paths

Unit 2: Dijkstra's Algorithm

Unit 3: Bellman-Ford Algorithm

Unit 4: Comparing Shortest Path Algorithms

Graph Algorithms: Minimum Spanning Trees

Unit 1: Introduction to MSTs

Unit 2: Prim's Algorithm

Unit 3: Kruskal's Algorithm

Unit 4: Comparing MST Algorithms

Topological Sort and Cycle Detection

Unit 1: Introduction to Directed Acyclic Graphs

Unit 2: Topological Sorting Fundamentals

Unit 3: Implementing Topological Sort

Unit 4: Cycle Detection in Graphs

Unit 5: Applications of Topological Sort

Sorting Algorithms: Comparison-Based

Unit 1: Introduction to Comparison Sorts

Unit 2: Simple Sorting Algorithms

Unit 3: Comparing Simple Sorts

Sorting Algorithms: Efficient Comparison Sorts

Unit 1: Merge Sort: Divide and Conquer

Unit 2: Quick Sort: The Partitioning Powerhouse

Unit 3: Heap Sort: Leveraging Heaps

Unit 4: Comparing Efficient Sorts

Sorting Algorithms: Non-Comparison Based

Unit 1: Introduction to Non-Comparison Sorts

Unit 2: Counting Sort

Unit 3: Radix Sort

Unit 4: Bucket Sort

Unit 5: Summary and Comparison

Searching Algorithms

Unit 1: Introduction to Searching

Unit 2: Binary Search Fundamentals

Unit 3: Advanced Binary Search Applications

Recursion and Backtracking

Unit 1: Foundations of Recursion

Unit 2: Applying Recursion

Unit 3: Introduction to Backtracking

Unit 4: Advanced Backtracking Problems

Dynamic Programming: Introduction

Unit 1: DP Fundamentals

Unit 2: Memoization (Top-Down DP)

Unit 3: Tabulation (Bottom-Up DP)

Unit 4: DP Problem Solving

Dynamic Programming: Advanced Techniques

Unit 1: Tabulation: Bottom-Up DP

Unit 2: Identifying DP Problems & Optimization

Unit 3: Systematic DP Approach

Greedy Algorithms

Unit 1: Introduction to Greedy Thinking

Unit 2: Classic Greedy Problems

Unit 3: Advanced Greedy Applications

Unit 4: Proving Greedy Correctness

Divide and Conquer

Unit 1: Introduction to Divide & Conquer

Unit 2: Classic D&C Algorithms

Unit 3: Analyzing D&C Algorithms

Bit Manipulation

Unit 1: Foundations of Bitwise Operations

Unit 2: Practical Bitwise Applications

Unit 3: Advanced Bit Manipulation & Problems

Advanced Data Structures: Skip Lists & Bloom Filters

Unit 1: Skip Lists: Probabilistic Power

Unit 2: Bloom Filters: Probabilistic Membership

Problem Solving Strategies & Interview Preparation

Unit 1: The Interview Process & Mindset

Unit 2: Systematic Problem Solving

Unit 3: Coding & Communication

Unit 4: Optimization & Refinement

Unit 5: Common Patterns & Practice