More Problems

• Write a program to implement a simple note-taking application with categories.
• Write a program to calculate the average of grades entered by the user.
• Write a program to check if a string contains a valid hexadecimal number.
• Write a program to find the maximum sum of two numbers in an array.
• Write a program to implement a simple restaurant reservation system.
• Write a program to check if a number is a happy number.
• Write a program to find the total number of sentences in a text.
• Write a program to implement a simple personal finance tracker.