More Problems

• Write a program to convert a string to an integer without using built-in functions.
• Write a program to check if two strings are rotations of each other.
• Write a program to implement a simple ATM simulation.
• Write a program to calculate the sum of all even numbers in a range.
• Write a program to check if a given string is a valid email address.
• Write a program to find the mode of a set of numbers.
• Write a program to implement a basic note-taking application.
• Write a program to calculate the factorial of a number using memoization.