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DSA

• Complete Git & GitHub Course
• Introduction to Programming
  • • Types of languages
  • • Memory management
• Flow of the program
  • • Flowcharts
  • • Pseudocode
• Introduction to Java
  • • Introduction
  • • How it works
  • • Setup Installation
  • • Input and Output in Java
  • • Conditionals & Loops in Java
    • • if else
    • • loops
    • • Switch statements
  • • Data types
  • • Coding best practices
• Functions
  • • Introduction
  • • Scoping in Java
  • • Shadowing
  • • Variable Length Arguments
  • • Overloading
• Pattern questions
• Arrays
  • • Introduction
  • • Memory management
  • • Input and Output
  • • ArrayList Introduction
  • • Sorting
    • • Insertion Sort
    • • Selection Sort
    • • Bubble Sort
    • • Cyclic Sort (Merge sort etc after recursion)
  • Searching
    • • Linear Search
    • • Binary Search
    • • Modified Binary Search
    • • Binary Search Interview questions
    • • Binary Search on 2D Arrays
• Strings
  • Introduction
  • How Strings work
  • Comparison of methods
  • Operations in Strings
  • StringBuilder in java
• Maths for DSA
  • • Introduction
  • • Complete Bitwise Operators
  • • Prime numbers
  • • HCF / LCM
  • • Sieve of Eratosthenes
  • • Newton's Square Root Method
  • • Number Theory
  • • Euclidean algorithm
• Space and Time Complexity Analysis
  • • Introduction
  • • Comparion of various cases
  • • Solving Linear Recurrence Relations
  • • Solving Divide and Conquer Recurrence Relations
  • • Big-O, Big-Omega, Big-Theta Notations
  • • Get equation of any relation easily - best and easiest approach
  • • Complexity discussion of all the problems we do
  • • Space Complexity
  • • Memory Allocation of various languages
  • • NP Completeness and Hardness
• Recursion
  • • Introduction
  • • Why recursion?
  • • Flow of recursive programs - stacks
  • • Convert recursion to iteration
  • • Tree building of function calls
  • • Tail recursion
  • • Sorting:
      • • Merge Sort
      • • Quick Sort
  • • Backtracking
      • • Sudoku Solver
      • • N-Queens
      • • N-Knights
      • • Maze problems
  • • Recursion String Problems
  • • Recursion Array Problems
  • • Recursion Pattern Problems
  • • Subset Questions
  • • Recursion - Permutations, Dice Throws etc Questions
• Object Oriented Programming
  • • Introduction
  • • Classes & its instances
  • • this keyword in Java
  • • Properties
      • • Inheritance
      • • Abstraction
      • • Polymorphism
      • • Encapsulation
  • • Overloading & Overriding
  • • Static & Non-Static
  • • Access Control
  • • Interfaces
  • • Abstract Classes
  • • Singleton Class
  • • final, finalize, finally
  • • Exception Handling
• Linked List
  • • Introduction
  • • Singly and Doubly Linked List
  • • Circular Linked List
  • • Fast and slow pointer
  • • Cycle Detection
  • • Reversing of LinekdList
  • • Linked List Interview questions
• Stacks & Queues
  • • Introduction
  • • Interview problems
  • • Push efficient
  • • Pop efficient
  • • Queue using Stack and Vice versa
  • • Circular Queue
• Dynamic Programming
  • • Introduction
  • • Recursion + Recursion DP + Iteration + Iteration Space Optimized
  • • Complexity Analysis
  • • 0/1 Knapsack
  • • Subset Questions
  • • DP on Grids
  • • LC Questions on Above topics
  • • Unbounded Knapsack
  • • Subseq questions
  • • String DP
• Trees
  • • Introduction
  • • Binary Trees
  • • Recursive Preorder, Inorder, Postorder Traversals
  • • Iterative Preorder, Inorder, Postorder Traversals
  • • LC Questions
  • • DFS
  • • BFS
  • • Morris Traversal O(1) Space
  • • Binary Search Trees
  • • LC Questions
  • • AVL Trees
  • • Segment Tree
  • • Fenwick Tree / Binary Indexed Tree
• Heaps
  • • Introduction
  • • Theory
  • • Priority Queue
  • • Two Heaps Method
  • • k-way merge
  • • top k elements
  • • interval problems
• Hashmaps
  • • Introduction
  • • Theory - how it works
  • • Comparisons of various forms
  • • Limitations and how to solve
  • • Map using LinkedList
  • • Map using Hash
  • • Chaining
  • • Probing
  • • Huffman-Encoder
• Tries
  • • Introduction
  • • Theory - how it works
  • • Applications
  • • Insert and Search
  • • GFG articles and Questions
  • • Interview Questions
• Graphs
  • • Introduction
  • • BFS
  • • DFS
  • • Working with graph components
  • • Bipartite Graph
  • • LC Questions
  • • Minimum Spanning Trees
  • • Kruskal Algorithm
  • • Prims Algorithm
  • • Dijkstra’s shortest path algorithm
  • • Topological Sort
  • • Kahn's Algorithm
  • • Bellman ford
  • • A* pathfinding Algorithm
• Greedy Algorithms
  • • Introduction
  • • Applications
  • • LC,GFG Questions
  • • Interview Questions

Advanced concepts apart from interviews

• Fast IO
• File handling
• Bitwise + DP
• Extended Euclidean algorithm
• Modulo Multiplicative Inverse
• Linear Diophantine Equations
• Matrix Exponentiation
• Mathematical Expectation
• Catalan Numbers
• Fermat’s Theorem
• Wilson's Theorem
• Euler's Theorem
• Lucas Theorem
• Chinese Remainder Theorem
• Euler Totient
• NP-Completeness
• Multithreading
• Fenwick Tree / Binary Indexed Tree
• Square Root Decomposition

🔥DSA-Bootcamp-Java

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• Lectures

• Course website

• Assignments (solutions can be found on LeetCode)

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