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
- Data-types
- Coding best practices
Functions
- Introduction
- Scoping in Java
- Shadowing
- Variable Length Arguments
- Overloading
Arrays
- Introduction
- Memory management
- Input and Output
- ArrayList Introduction
- Searching
- Sorting
Pattern questions
Strings
- Introduction
- How Strings work
- Comparison of methods
- Operations in Strings
- StringBuilder in Java
- StringBuffer
Maths for DSA
- Introduction
- Complete Bitwise Operators
- Range of numbers
- Prime numbers
- Sieve of Eratosthenes
- Newton's Square Root Method
- Factors
- Modulo properties
- Number Theory
- HCF / LCM
- Euclidean algorithm
- BigInteger & BigDecimal
Recursion
- Introduction
- Flow of recursive programs - stacks
- Why recursion?
- Tree building of function calls
- Tail recursion
- Sorting
  - Merge Sort
  - Quick Sort
- Backtracking
- Recursion String Problems
- Recursion Google, Amazon Questions
- Recursion Array Problems
- Recursion Pattern Problems
- Subset Questions
Space and Time Complexity Analysis
- Introduction
- Comparisons of various cases
- Solving Linear Recurrence Relations
- Solving Divide and Conquer Recurrence Relations
- Big-O, Big-Omega, Big-Theta Notations
- Little Notations
- Get equation of any relation easily - best and easiest approach
- Complexity discussion of all the problems we do
- Space Complexity
- NP-Completeness Introduction
Object Oriented Programming
- Introduction
- Classes & its instances
- this keyword in Java
- Properties
  - Inheritance
  - Abstraction
  - Polymorphism
  - Encapsulation
- Overloading & Overriding
- Static & Non-Static
- Packages
- Access Control
- Interfaces
- Abstract Classes
- Annotations
- Singleton Class
- final, finalize, finally
- Object Cloning
- Object Class
- Generics
- Exception Handling
- Collections Framework
- Vector Class
- Lambda Expression
- Enums
Linked List
- Introduction
- Singly + Doubly + Circular LinkedList
- Fast and slow pointer
- Cycle Detection
- Reversal of LinkedList
- Linked List + Recursion
Stacks & Queues
- Introduction
- Push efficient
- Pop efficient
- Queue using Stack and vice versa
- Circular Queue
- Interview problems
File handling
Trees
- Introduction
  - Binary Trees
  - Binary Search Trees
- Interview questions
  - DFS
  - BFS
- AVL Trees
- Segment Tree
- Fenwick Tree / Binary Indexed Tree
Heaps
- Introduction
  - Theory
  - Priority Queue
  - Heapsort
- Two Heaps Method
- k-way merge
- Top k elements
- Interval problems
HashMap
- Introduction
  - Theory - how it works
  - Comparisons of various forms
  - Limitations and how to solve
  - Map using LinkedList
  - Map using Hash
  - Chaining
  - Probing
- Huffman Coding
- Karp-Rabin Strng matching algorithm
Subarray Questions: Sliding window, Two Pointer, Kadane's Algorithm
Graphs
- Introduction
- BFS
- DFS
- Working with graph components
- Minimum Spanning Trees
- Kruskal Algorithm
- Prims Algorithm
- Dijkstra’s shortest path algorithm
- Topological Sort
- Bellman ford
- A* pathfinding Algorithm
Dynamic Programming
- Introduction
- Recursion + Recursion DP + Iteration + Iteration Space Optimized
- Complexity Analysis
- 0/1 Knapsack
- Subset Questions
- Unbounded Knapsack
- Subsequence questions
- String DP
Greedy Algorithms
Tries

Advanced concepts apart from interviews

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
Square Root Decomposition