LeetCode for Absolute Beginners

A beginner-friendly course designed to equip you with the foundational data structures, algorithms, and problem-solving skills needed to conquer LeetCode's Easy problems.
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Introduction to Data Structures and Algorithms

Unit 1: Data Structures & Algorithms: The Big Picture

Unit 2: Arrays

Unit 3: Linked Lists

Unit 4: Stacks and Queues

Unit 5: Big O Notation

Fundamental Algorithms: Searching and Sorting

Unit 1: Linear Search

Unit 2: Binary Search

Unit 3: Bubble Sort

Unit 4: Insertion Sort

Unit 5: Selection Sort

Problem-Solving Techniques for LeetCode

Unit 1: Two-Pointer Technique

Unit 2: Sliding Window Technique

Unit 3: Recursion Fundamentals

Unit 4: Systematic Problem Solving

LeetCode Practice and Debugging

Unit 1: LeetCode Environment and First Problem

Unit 2: Array Manipulation Problems

Unit 3: String Processing Problems

Unit 4: Debugging Techniques