More Problems

• Write a program to check if a string is a valid hexadecimal color code.
• Write a program to find the longest consecutive sequence of characters in a string.
• Write a program to implement a simple recipe application with ingredients.
• Write a program to check if a number is a happy number using recursion.
• Write a program to find the total number of digits in a floating-point number.
• Write a program to implement a basic personal finance application.
• Write a program to check if a string is a valid URL using regex.
• Write a program to calculate the average of grades using a weighted average.