This is the repository where I track what I learn in C++. Syntax is the same in C and C++ unless in specific scenarios such as Header Files, Function Overloading, or Object-Oriented Programming.

Some questions remain untouched because I can't understand how to solve them at my current level. If you know how to solve them in a beginner-friendly way, please lend a helping hand. Your contributions will help a lot of people.

• Declare an integer variable named counter and initialize it to 5.

• Write a C expression using the modulus operator (%) to find the remainder when 15 is divided by 4.

• Implement a C program that checks if a given number is even or odd and prints the result.
• Write a C program that uses a switch statement to display the name of a day based on the user's input (1 for Sunday, 2 for Monday, etc.).
• Write a C program that generates the Fibonacci sequence up to the 10th term using a loop.

• Declare an array of integers named scores with a size of 3 and initialize it with values 85, 90, and 78.

• Write a C program that initializes an array of integers with values 1 to 5 and prints each element.

• Write a C program that searches for a specific value in an array of integers. Print the index if found; otherwise, print a message indicating its absence.

• Declare a 2D array named matrix with 3 rows and 4 columns, and initialize it with some values.

• Implement a C program that uses a loop to find and print the maximum value in a matrix.

• Write a C function called calculateAverage that takes an array of integers and its size as parameters and returns the average of the elements.

• Create a function calculateSum that takes an array of integers and its size as parameters and returns the sum of the elements.

• Create a C program that uses the function calculateSum to calculate the average of an array.

• Write a C function to check if a given number is prime or not.

• (Unsolved) Implement a C function called mergeArrays that takes two arrays of integers and their sizes as parameters. Merge the arrays into a new array and return the result.

• In C, there is no direct support for function overloading. Discuss why function overloading is not available in C, unlike in C++.

• Implement a recursive C function to calculate the factorial of a given positive integer.

• Declare an integer variable num and a pointer ptr to an integer. Initialize ptr to point to the address of num. Change the value of num through the pointer to 42.
• Create a pointer p and initialize it to point to the middle element of the array.

• Allocate memory dynamically for an array of 10 integers using malloc in C or new in C++. Free the dynamically allocated memory using free in C or delete in C++.

• Write a C function called swap that takes two integer pointers as parameters and swaps the values they point to.

• Declare an array of integers and a pointer to the array. Use pointer arithmetic to print the elements of the array in reverse order.
• Create a function that accepts a string (character array) and returns the length of the string using pointers.

• Declare a structure named Book with members title, author, and price. Create and initialize a structure variable for a book of your choice.

• Create a structure named Date with members day, month, and year. Write a function to print the date in the format "dd-mm-yyyy."

• Declare a structure named Student with members name, rollNumber, and marks. Create an array of structures to store information for five students.

• Extend the Student structure to include an array of grades for each student. Initialize the grades for a couple of students.

• Declare a structure named Department with members name and location. Include this structure as a member of the College structure, which also has members for name and yearEstablished.

• (Unsolved) Write a function that accepts an array of Book structures and prints the details of the book with the highest price.

• Write a program that uses a pointer to a structure to dynamically allocate memory for a single Person structure. Allow the user to input the person's details.

• Declare a union named Value with members integer, decimal, and character. Write a program to demonstrate the use of the union to store and print different types of values.

• Extend the Value union to include an array of integers. Write a program to initialize and print the values of the union members.

• Create a structure named Employee with members name and a union named Salary containing members for monthlySalary (float) and hourlyRate (float). The structure should indicate whether the salary is monthly or hourly.

• (Unsolved) Modify the calculateAverage function from a previous example to also return the sum of the elements. Update the main function to print both average and sum.

• Create a function that sorts an array of integers in ascending order.

• (Unsolved) Research and implement a C function that takes a variable number of arguments and calculates their sum.