Master Data Structures and Algorithms with LeetCode
Unlock your programming potential with our comprehensive Free DSA Course! This course is designed to take you from the fundamentals to advanced concepts of Data Structures and Algorithms (DSA), all through engaging video lectures on YouTube. Each topic is meticulously covered with detailed theory explanations and hands-on practice using LeetCode problems.
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Course Overview
Schedule of Classes
Total Classes
1 Classes
Course Curriculum
14 Subjects
Course Introduction - Python & DSA
2 Learning Materials
Course Introduction and Important Links
DSA Roadmap
Introduction
Live Recordings - Python & DSA
Basics of Programming - Python & DSA
17 Learning Materials
Understand Time and Space Complexity
What is Time and Space Complexity in DSA?
What is TLE Error?
Time Complexity of Common Python Operations & Methods
Basic Maths Logic Buildup
Extraction of Digits from an Integer
Count the number of Digits in an Integer
Check if a number is Palindrome or Not
Armstrong Number
Print All Factors of a Given Number
Introduction to Hashing
Store Frequency in Dictionary
Introduction to Hashing
Recursion Concept
Introduction to Recursion
Recursion Using Parameters
Functional Recursion
Find the factorial of a Number
Reverse an Array using Recursion
Check if a String is Palindrome or Not
Find the Fibonacci Number
Sorting Algorithms - Python & DSA
5 Learning Materials
All Sorting Algorithms
Selection Sort
Bubble Sort
Insertion Sort
Merge Sort
Quick Sort
List/Array Leetcode Problems - Python & DSA
22 Learning Materials
Easy Level Problems
Find the Largest Element in an Array
Find the Second Largest Element in an Array Without Sorting
Check if the array is sorted
Remove Duplicates from a Sorted Array
Right Rotate an array by one place
Right rotate an array by K places
Leetcode 283: Move Zeros to the End of the List
Implementing Linear Search
Merge 2 Sorted Arrays Without Duplicates
Leetcode 268: Find Missing Number in an Array
Leetcode 485: Max Consecutive Ones
Medium Level Problems
Leetcode 1: Two Sum Problem
Leetcode 53: Find the Maximum Subarray Sum
Leetcode 121: Best Time to Buy and Sell Stock
Leetcode 2149: Rearrange Array Elements by Sign
Leetcode 128: Longest Consecutive Sequence
Learn About 2D List or Matrix
Leetcode 73: Set Matrix Zeros
Leetcode 48: Rotate Matrix by 90 Degrees
Leetcode 54: Print the Matrix in Spiral Order
Hard Level Problems
Leetcode 15: 3Sum Problem
Leetcode 18: 4Sum Problem
Binary Search - Python & DSA
9 Learning Materials
Binary Search on simple 1D Arrays
Introduction to Binary Search
Implement Lower and Upper Bound
Leetcode 35: Search Insert Position
Floor & Ceil in Sorted Array
Leetcode 34: Find First & Last Occurrence in Sorted Array
Count Occurrences in Sorted Array
Search in Rotated Sorted Array I
Search in Rotated Sorted Array II
Find minimum in Rotated Sorted Array
Linked List - Python & DSA
9 Learning Materials
Learn Singly Linked List
What is Linked List?
Traversal, Insertion, Deletion, Append Nodes
Medium problems of SLL
Middle of a LinkedList [TortoiseHare Method]
Reverse a LinkedList
Detect a loop in LL
Find the starting point in LL
Length of Loop in LL
Segrregate odd and even nodes in LL
Remove Nth node from the back of the LL
Bit Manipulation - Python & DSA
5 Learning Materials
Learning Bit Manipulation
Introduction to Bit Manipulation
Bit Manipulation Basics | Swapping, Setting, Clearing, Toggling Bits
Problems on Bit Manipulation
Count number of bits to be flipped to convert A to B
Find the number that appears odd number of times
Power Set
Advance Recursion - Python & DSA
13 Learning Materials
Mandatory to learn
Generate all the Subsequences
Generate all subsequences with Sum = K
Check if there exists a subsequence with sum K
Count All Subsequences with Sum K
Generate Subsequences Problems
Generate all binary strings
Generate Parentheses
Combination Sum
Combination Sum-II
Subset Sum-I
Combination Sum - III
Letter Combinations of a Phone number
Hard problems on recursion
N Queen
Rat in a Maze
Stack and Queues - Python & DSA
12 Learning Materials
Learn the basics
Implement Stack using Arrays
Implement Queue using Arrays
Deque Module
Implement Stack using Queue
Implement Queue using Stack
Implementing Stack and Queue using Doubly Linked List
Valid Parenthesis
Implement Min Stack
Prefix, Infix, Postfix conversions
Infix, Postfix & Prefix | Conversions Explained with Stack
Monotonic Stack/Queue Problems
Next Greater Element
Next Greater Element 2
Asteroid Collision
Sliding Window and Two Pointers - Python & DSA
4 Learning Materials
Medium level Problems
Longest Substring Without Repeating Characters
Max Consecutive Ones III
Fruit Into Baskets
Maximum point you can obtain from cards
Greedy Algorithms - Python & DSA
8 Learning Materials
Easy Level Problems
Assign Cookies
Fractional Knapsack Problem
Greedy algorithm to find minimum number of coins
Lemonade Change
Medium/Hard Level Problems
N meetings in one room
Jump Game
Jump Game 2
Minimum number of platforms required for a railway
Binary Trees - Python & DSA
11 Learning Materials
Learn Basic and Traversal
Introduction to Binary Trees | Concepts, Terminology, Types Explained
Binary Tree Implementation | Node Class & Tree Construction
DFS in Binary Trees | Preorder, Inorder, Postorder Traversal
Level Order Traversal (BFS) in Binary Tree | Using Deque
Medium Level Problems
Height of a Binary Tree
Diameter of Binary Tree
Check if the Binary tree is height-balanced or not
Maximum path sum
Top View of Binary Tree
Bottom View of Binary Tree
Right/Left View of Binary Tree
Graphs - Python & DSA
14 Learning Materials
Introduction to Graphs
Introduction to Graphs | Nodes, Edges, Cycles, Weighted Graphs
Graph Representation in Python
What Are Connected Components in Graphs?
Breadth First Search (BFS) in Graph
Depth First Search (DFS) in Graph
Problems based on BFS & DFS
Rotting Oranges
Flood Fill Algorithm
Detect Cycle in Undirected Graph (BFS)
Detect Cycle in Undirected Graph (DFS)
01 Matrix | Multi-Source BFS for Shortest Distance
Surrounded Regions
Number of Enclaves
Word Ladder
Word Ladder II
Course Instructor
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Code and Debug
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