More Problems

• Write a program to calculate the perimeter of a rectangle using a function.
• Write a program to check if a string contains all digits.
• Write a program to reverse a string in place.
• Write a program to implement a basic calculator using switch-case statements.
• Write a program to find the factorial of a number using recursion.
• Write a program to check if a string is a palindrome.
• Write a program to implement a simple queue using an array.
• Write a program to sort an array of integers using the quicksort algorithm.