Zero to Hero - Python DSA (Self Paced)
Unlock your coding potential with our comprehensive online course, "Python + DSA (Basic to Advanced) with 500+ LeetCode Questions." This meticulously structured course is designed to guide you through the fundamentals of Python and advanced Data Structures and Algorithms, ensuring a solid foundation with practical, hands-on coding experiences.
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Course Overview
Schedule of Classes
Course Curriculum
16 Subjects
Important Links
1 Learning Materials
Get all the important links
DSA Roadmap
Basics of programming - Z2H
17 Learning Materials
Understanding Time and Space Complexity
What is Time and Space Complexity?
What is Time Limit Exceeded (TLE) error?
Time Complexity of common python operations
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 factors/divisors of a number
Introduction to Hashing
[Pre Requirement] Store Frequency in Dictionary
Learn basics of hashing
Recursion Basics
Theory - What is Recursion?
Recursion using Parameters
Parameterized vs Functional Recursion
Factorial of a number using Recursion
Reverse an Array using Recursion/Loop
Check if a String is Palindrome or Not
Find the Fibonacci number
Sorting Algorithms - Z2H
5 Learning Materials
All Sorting Algorithms
Selection Sort
Bubble Sort
Insertion Sort
Merge Sort
Quick Sort
Array/List Problems - Z2H
32 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
Sort an array of 0's 1's and 2's
Kadane's Algorithm, maximum subarray sum
Leetcode 169 - Majority Element
Best time to Buy and Sell Stock
Rearrange element by sign
Leaders in an Array
Longest Consecutive Sequence
Learn 2D List and Matrix
Leetcode 73 - Set Matrix Zeroes
Rotate Matrix by 90 degrees
Leetcode 54 - Print the matrix in spiral manner
Hard Level Problems
3Sum Problem - Leetcode 15
Largest Subarray with 0 Sum
Merge Overlapping Subintervals - Leetcode 56
Merge two sorted arrays without extra space
Find the repeating and missing numbers
Pascal's Triangle
4Sum Problem
Count Inversions
Leetcode 493 - Reverse Pairs
Binary Search - Z2H
25 Learning Materials
Binary Search on 1D Arrays/List
Introduction to Binary Search
Implementation of Lower and Upper Bound
Leetcode 35 - Search Insert Position
Floor/Ceil in Sorted Array
Leetcode 34: Find the first or last occurrence of a given number in a sorted array
Count occurrences of a number in a sorted array with duplicates
Leetcode 33: Search in Rotated Sorted Array I
Leetcode 81: Search in Rotated Sorted Array II
Leetcode 153: Find minimum in Rotated Sorted Array
Find out how many times has an array been rotated
Single element in a Sorted Array
Find peak element
Binary Search on Answers
Find square root of a number in log n
Find the Nth root of a number using binary search
Koko Eating Bananas
Minimum days to make M bouquets
Find the smallest Divisor
Capacity to Ship Packages within D Days
Aggressive Cows
Allocate Books
Painter's partition
Minimize Max Distance to Gas Station
Median of Two Sorted Arrays
Binary Search on 2D Arrays
Find the row with maximum number of 1's
Search in a 2D Matrix - I
Strings - Z2H
11 Learning Materials
Easy Level Problems
Remove outermost Paranthesis
Reverse words in a given string
Largest odd number in a string
Longest Common Prefix
Isomorphic Strings
Check whether one string is a rotation of another
Check if two strings are anagram of each other
Medium Level Problems
Sort Characters by frequency
Maximum Nesting Depth of Paranthesis
Roman Number to Integer
Implement Atoi
Linked List (Single LL, Double LL) - Z2H
21 Learning Materials
Learn Singly Linked List
Introduction to LinkedList
Insertion, Deleting, Length, Insertion of Nodes in SLL
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
Delete the middle node of LL
Remove Nth node from the back of the LL
Check if LL is palindrome or not
Sort a LL of 0's 1's and 2's by changing links
Find the intersection point of 2 LL
Add 1 to a number represented by LL
Add 2 numbers in LL
Learn Doubly Linked List
Introduction to DLL
Traversal, Insertion, Deletion in a DLL
Medium Level Problems of DLL
Reverse a DLL
Delete all occurrences of a key in DLL
Find pairs with given sum in DLL
Remove duplicates from sorted DLL
Bit Manipulation - Z2H
6 Learning Materials
Bit Manipulation Basics
Introduction to Bit Manipulation
Solve basic problems
Interview Problems
Count number of bits to be flipped to convert A to B
Find the number that appears odd number of times
Power Set
Find xor of numbers from L to R
Advance Recursion - Z2H
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 Queens
Rat in a Maze
Stacks and Queues - Z2H
13 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
All conversions
Monotonic Stack/Queue Problems
Next Greater Element 1
Next Greater Element 2
Sum of subarray minimum
Asteroid Collision
Sliding Window and Two Pointers - Z2H
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 - Z2H
11 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 Platforms
Job Sequencing Problem
Candy
Program for Shortest Job First (or SJF) CPU Scheduling
Binary Trees - Z2H
11 Learning Materials
Learn Traversal
Introduction to Trees
Code Implementation of BT
Depth First Search (DFS)
Breadth First Search (BFS)
Medium Level Problems
Height of a Binary Tree
Diameter of Binary Tree
Balanced Binary Tree
Maximum path sum
Top View of Binary Tree
Bottom View of Binary Tree
Right/Left View of Binary Tree
Binary Search Trees - Z2H
4 Learning Materials
Introduction
Introduction to Binary Search Tree
Search in a Binary Search Tree
Find Min/Max in BST
Practice Problems
Ceil in a Binary Search Tree
Heaps - Z2H
7 Learning Materials
Introduction to Heaps
Introduction to Priority Queues using Binary Heaps
Heapify Algorithm
Build heap from a given Array
Implement Min Heap
Implement Max Heap
Check if an array represents a min heap
Convert Min Heap to Max Heap
Graphs - Z2H
43 Learning Materials
Introduction to Graphs
Graph and Types
Graph Representation
Connected Components
Breadth First Search in graph
Depth First Search in graph
Problems based on BFS & DFS
Rotten Oranges
Flood fill
Cycle Detection in undirected Graph (bfs)
Cycle Detection in undirected Graph (dfs)
0/1 Matrix (Bfs Problem)
Surrounded Regions (dfs)
Number of Enclaves [flood fill implementation - multisource]
Word Ladder - 1
Word Ladder 2
Number of Islands
Number of Distinct Islands
Bipartite Graph (DFS)
Cycle Detection in Directed Graph (DFS)
Topo Sort based problems
Topo Sort
Topo Sort (BFS)
Cycle Detection in Directed Graph (BFS)
Course Schedule - I
Find eventual safe states (BFS)
Find eventual safe states (DFS)
Alien dictionary
Shortest Path related Problems
Shortest Path in UG with unit weights
Shortest Path in DAG
Dijkstras Algorithm using Priority Queue
Dijkstras Algorithm using Set
Why PQ and not Queue
Print the Shortest Path in Weighted Undirected Graph
Shortest Path in Binary Matrix
Path With Minimum Effort
Cheapest Flights Within K Stops
Minimum Multiplications to reach End
Number of Ways to Arrive at Destination
Bellman Ford Algorithm
Floyd Warshall
Find the City With the Smallest Number of Neighbours at a Threshold Distance
Minimum Spanning Tree and Disjoint Set
Minimum Spanning Tree - Theory
Prim's Algorithm
Disjoint Sets
Kruskal's Algorithm
Course Instructor
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Code and Debug
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