More Problems

• Write a program to check if a string is a valid binary number using a function.
• Write a program to find the longest word in a file.
• Write a program to implement a simple user login system with password validation.
• Write a program to calculate the surface area of a cylinder.
• Write a program to check if a number is a happy number using a function.
• Write a program to find the total number of words in a string using a function.
• Write a program to implement a basic text-based RPG combat system.
• Write a program to check if a string is a valid Morse code.