Logic Building Questions
Arrays
- Write a program to find the second largest number in an array.
- Reverse an array without using an additional array.
- Rotate an array to the left by a given number of positions.
- Count the occurrences of each element in an array.
- Check if two arrays are permutations of each other.
- Merge two sorted arrays into one sorted array.
- Find the subarray with the maximum sum (Kadane?s Algorithm).
Strings
- Check if a string is a palindrome.
- Reverse each word in a string without changing the word order.
- Count vowels and consonants in a string.
- Find the first non-repeating character in a string.
- Remove all duplicate characters from a string.
- Check if two strings are anagrams of each other.
- Implement a function to compress a string (e.g., 'aaabb' -> 'a3b2').
Logic Building Questions
Functions
- Write a function to calculate the factorial of a number.
- Create a function to check if a number is prime.
- Implement a function to generate Fibonacci numbers up to `n`.
- Write a function to calculate the power of a number using recursion.
- Implement a function to find the GCD (Greatest Common Divisor) of two numbers.
- Write a function to convert a decimal number to binary.
- Implement a function to find all permutations of a given string.
Object-Oriented Programming (OOPs)
- Create a class `BankAccount` with methods to deposit, withdraw, and check balance.
- Implement a `Rectangle` class with methods to calculate area and perimeter.
- Design a `Person` class with properties for name, age, and a method to display the details.
- Create a `Shape` base class and derive classes for `Circle`, `Square`, and `Rectangle`.
- Demonstrate method overloading and overriding using a `Calculator` class.
- Design an abstract class `Vehicle` with a method `StartEngine` and derive classes for `Car` and
`Bike`.
- Implement a `Student` class with properties, constructors, and methods for managing student data.
Logic Building Questions
C#
- Write a program to demonstrate `foreach` with a collection.
- Implement a generic method to swap two variables.
- Use LINQ to find the largest and smallest numbers in a list.
- Write a program to handle exceptions for division by zero.
- Create an interface `IShape` with methods for area and perimeter, and implement it in `Circle` and
`Rectangle`.
- Write a program to demonstrate the use of `async` and `await`.
- Create a collection of employees and sort them by their salaries.
WinForms
- Create a login form with validation for username and password.
- Design a form to add, edit, and delete items in a list.
- Create a form with a `DataGridView` to display and edit product details.
- Develop a form to calculate the sum of two numbers using text boxes and a button.
- Implement a form with a timer to display the current time.
- Create a notepad application with options to save, open, and edit text files.
- Design a simple calculator application with basic arithmetic operations.
