More Problems

• Write a program to implement a basic library system with book lending.
• Write a program to check if two numbers are coprime using the Euclidean algorithm.
• Write a program to calculate the sum of all digits in a floating-point number.
• Write a program to implement a simple game of Connect Four.
• Write a program to check if a string contains balanced parentheses of different types.
• Write a program to find the first duplicate number in an array.
• Write a program to implement a basic user authentication system.
• Write a program to calculate the sum of the digits in an integer.