More Problems

• Write a program to implement a basic online quiz application with time limits.
• Write a program to check if a string is a valid base64 encoded string using regex.
• Write a program to find the maximum product of any two numbers in an array.
• Write a program to implement a simple file encryption and decryption system.
• Write a program to check if a number is a Fibonacci number using iteration.
• Write a program to calculate the average of marks entered until a sentinel value is reached.
• Write a program to implement a basic text editor that allows for text editing commands.
• Write a program to check if a string contains balanced parentheses of different types ((), {}, []).