Batch26 review and practicals work on exercises involving sacks and queues

Batch24/LessonMaterials/Batch-23-24-25-MySQl-Practice-Creating-Databases-Tables-and-Performing-Crud.md

@@ -0,0 +1,70 @@
+
+SQL Basics: MySQl: Practice Creating Databases, Tables and Performing Crud in c#.
+
+(Batch 23/24/25)
+
+Lesson Date: 10|02|2025.
+
+Introduction:
+This course is designed to provide you with essential skills in SQL and database management using MySQL,
+with a specific focus on integrating these skills into C# applications.
+
+During this course, we will cover the following topics:
+
+1. What Object Relation Mapper(ORM) Is:
+
+	Materials Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+	Udemy video.
+
+2. Types Of Object Relational Mapper(ORM):
+
+	Materials Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+	Udemy video.
+
+3. Installation of Mysql.Data(External Package):
+
+	Materials Used:
+	Udemy video.
+	Internet.
+
+4. Explanation of Important Classes and Method in Myqsl.Data Namespace.
+
+	Materials Used:
+	Dotnet Tutorials.
+	Udemy video.
+
+5. Importance of Opening and Closing Conncection.
+
+	Materials Used:
+	Dotnet Tutorials.
+	Udemy video.
+
+6. How To Use Connection String in c# Applications.
+
+	Materials Used:
+	Dotnet Tutorials.
+	Udemy video.
+
+
+7. How To Connect c# Applications To MySQL Database.
+
+	Materials Used:
+	Dotnet Tutorials.
+	Udemy video.
+
+8. Create Databases and Tables:
+
+	Materials Used:
+	W3 Schoool Tutorials.
+	Udemy video.
+	Intrnet.
+
+9. Build Practical Application Using Student Entity, To Perform Crud Operation.
+
+	Materials Used:
+	Udemy video.
+

Batch24/LessonMaterials/Batch23-24-25-Introdution-To-Databases-Overview-Sql-and-Relational-Databases-Lesson Note.md

@@ -0,0 +1,88 @@
+
+Introduction To Databases : Overview Of Sql And Relational Databases.
+(Batch 23/24/25)
+
+Lesson Date: 10|02|2025.
+
+Introduction:
+A database is an organized collection of data that can be easily accessed, managed, and updated.
+They allow for efficient data storage, retrieval, and manipulation, which is essential for dynamic applications.
+
+Relational databases are a specific type of database that stores data in tables (or relations). Each table consists of rows and columns,
+where each row represents individual entry or a record that exists in a table and each column holds specific information about
+every record in the table.
+
+SQL (Structured Query Language) as the standard language used to communicate with relational databases. It is used for querying, updating, 
+and managing data.
+
+During this course, we will cover the following topics:
+
+
+1. What a Database Is.
+
+	Material Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+
+2. The Types of Databases.
+
+	Material Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+	Udemy video.
+
+3. What a Relational Database Is.
+
+	Material Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+	Udemy video.
+
+4. Types Of Relational Database.
+
+	Materials Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials
+
+5. What SQL is.
+
+	Materials Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+	Udemy video.
+
+6. The Most Important SQl Command
+
+	Materials Used:
+	Dotnet Tutorials.
+	W3 Schoool Tutorials.
+	Udemy video.
+
+7. Installation of Mysql with Mysql Workbench.
+
+	Materials Used:
+	Udemy Video.
+
+8. Write SQl Querry with Mysql and Workbench.
+
+9. Data Types in Mysql.
+
+	Materials Used:
+	Udemy video
+
+10. What Primary Key Is.
+
+	Materials Used:
+	Udemy video.
+
+11. What Foreign Key Is.
+
+	Materials Used:
+	Udemy video.
+
+12. Unique, Not Null, Null and Check Constraints.
+
+	Materials Used:
+	Udemy video.
+
+13.Code examples will be provided.

Batch26/Assignments/Batch26-02-18-2025-Search-Algorithm-Binary-Practice-Binary-Search-Algorithm-Exercise.md

@@ -0,0 +1,56 @@
+
+Search Algorithm: Binary
+Practice Binary Search Algorithms
+(Batch26).
+
+
+Exercise Date: 02/18/2025.
+
+Submission Date :02/22/2025.
+
+Exercise 1:
+
+Task: Implement a basic binary search algorithm in C#. Given a sorted array of integers and a target integer, 
+return the index of the target if it exists in the array; otherwise, return -1.
+
+Exercise 2:
+
+Task: Modify your binary search implementation to use recursion instead of iteration. 
+Write a recursive method that takes a sorted array and a target value and returns the index of the target.
+
+Exercise 3:
+
+Task: Write a method that uses binary search to find the number of occurrences of a given target value in a sorted array. 
+Return the count of occurrences.
+
+Exercise 4:
+
+Implement a method that finds the first and last position of a target value in a sorted array. 
+Return the positions as a tuple (firstIndex, lastIndex). If the target is not found, return (-1, -1).
+
+Exercise 5:
+
+Write a method that takes a sorted array and a target value and returns the index at which the target should be inserted to maintain
+the sorted order. If the target already exists, return its index.
+
+Exercise 6: 
+
+Given a rotated sorted array, implement a binary search algorithm to find the minimum element in the array.
+The array was originally sorted in ascending order but was rotated at some pivot.
+
+Exercise 7:
+
+Write a method that searches for a target value in a rotated sorted array. Return the index of the target if found, or -1 if not found.
+
+Exercise 8:
+Implement a binary search algorithm to find a peak element in an array. 
+An element is considered a peak if it is greater than or equal to its neighbors. The array may not be sorted.
+
+Exercise 9:
+Write a method that uses binary search to calculate the square root of a given non-negative integer. 
+Return the integer part of the square root (i.e., the largest integer x such that x * x <= n).
+
+Exercise 10:
+
+Given a k x k sorted matrix (where each row and column is sorted), 
+implement a binary search algorithm to find the kth smallest element in the matrix.

Batch26/Assignments/Batch26-02-18-2025-Sorting Algorithms-Bubble-Sort-Implement-And-Analyze-Bubble-Sort-Exercise.md

@@ -0,0 +1,63 @@
+
+Sorting Algorithms: Bubble Sort
+Implement and Analyze Bubble Sort.
+(Batch26).
+
+
+Exercise Date: 02/18/2025.
+
+Submission Date :02/22/2025.
+
+Exercise 1: 
+
+Task: Implement a basic Bubble Sort algorithm in C#. Given an array of integers, 
+sort the array in ascending order using the Bubble Sort technique.
+
+Exercise 2:
+
+Task: Modify your Bubble Sort implementation to include an optimization that stops the algorithm if no swaps are made during a pass. 
+This can improve performance for nearly sorted arrays.
+
+Exercise 3:
+
+Write a method that sorts an array of integers in descending order using the Bubble Sort algorithm.
+
+Exercise 4:
+
+Implement a Bubble Sort algorithm that counts the number of swaps made during the sorting process.
+Return the total number of swaps after sorting the array.
+
+Exercise 5:
+
+Write a Bubble Sort method that sorts an array of strings in alphabetical order. Test your implementation with an array of names.
+
+Exercise 6:
+
+Create a class called Person with properties Name and Age and DateOfBirth. 
+Implement a Bubble Sort algorithm to sort a list of Person objects by DateOfBirth.
+
+Exercise 7:
+
+Write a method that sorts a 2D array (matrix) based on the values in the first column using the Bubble Sort algorithm. 
+If two rows have the same value in the first column, maintain their original order.
+
+Exercise 8:
+
+Implement a Bubble Sort algorithm that accepts a comparison delegate (Func) to allow sorting based on custom criteria (e.g., ascending, descending, or based on specific properties of objects).
+
+Exercise 9:
+Create a console application that visualizes the Bubble Sort process. Print the array after each swap to show how the sorting progresses.
+
+Exercise 10:
+
+Task: Write a Bubble Sort method that sorts an array of double values in ascending order.
+ Test your implementation with an array of floating-point numbers.
+
+Exercise 11:
+
+Before performing Bubble Sort, write a method that checks if an array is already sorted. 
+If it is sorted, return the original array without sorting.
+
+Exercise 12:
+Create a console application that prompts the user to enter a series of integers.
+Store the integers in an array and then sort the array using the Bubble Sort algorithm. Finally, Implement binary search on the sorted array.

Batch26/LessonMaterials/Batch26-Abstract-Classes-and-Methods.md

@@ -0,0 +1,75 @@
+
+
+
+Abstract Classes and Methods.
+
+(Batch 26).
+
+Lesson Date: 11/02/2025.
+
+Introduction.
+An abstract class serves as a blueprint for other classes. It cannot be instantiated on its own and is designed to be inherited by subclasses.
+Abstract classes can contain both abstract methods (which have no implementation) and concrete methods (which do have implementation). 
+This allows for a mix of defined behavior and enforced structure in derived classes.
+
+Abstract Methods: An abstract method is a method that is declared without an implementation. 
+Subclasses that inherit from the abstract class are required to provide concrete implementations for these methods. 
+This enforces a contract that ensures certain methods are implemented in derived classes,
+promoting consistency across different implementations.
+
+In this course, we will cover the following topics:
+
+1. What Abstract Class is.
+
+	Materials Used:
+	Sharp Corner. com Material.
+	Programiz.com Material
+	Dotnet Tutorials.
+	Internet.
+
+2. Inheriting an Abstract Class.
+
+	Materials Used:
+	Sharp Corner. com Material.
+	Programiz.com Material
+	Dotnet Tutorials.
+	Internet.
+
+3. Implementation of Abstract Class with examples.
+
+	Materials Used:
+	Sharp Corner. com Material.
+	Programiz.com Material
+	Dotnet Tutorials.
+	Internet.
+
+4. What Abstract Method is
+
+	Materials Used:
+	Sharp Corner. com Material.
+	Programiz.com Material
+	Dotnet Tutorials.
+	Internet.
+
+5. Inheriting an Abstract Method.
+
+	Materials Used:
+	Sharp Corner. com Material.
+	Programiz.com Material
+	Dotnet Tutorials.
+	Internet.
+
+6. Implementation of Abstract Method with examples.
+
+	Materials Used:
+	Sharp Corner. com Material.
+	Programiz.com Material
+	Dotnet Tutorials.
+	Internet.
+
+7. Differences Between Method Overriding and Abstract Method
+
+	Materials Used:
+	Sharp Corner. com Material.
+
+8. Code example will be provided