More Problems

• Write a program to implement a simple personal finance tracker.
• Write a program to check if a string is a valid date in the format YYYY-MM-DD.
• Write a program to find the longest repeating character in a string.
• Write a program to calculate the total distance traveled based on speed and time.
• Write a program to implement a basic file backup system.
• Write a program to check if a number is a perfect cube.
• Write a program to find the GCD of three numbers.
• Write a program to check if a string is a valid IP address.