More Problems

• Write a program to implement a simple online shopping application with user login.
• Write a program to check if a string is a valid floating-point number.
• Write a program to find the first unique word in a string using a function.
• Write a program to implement a basic budget calculator with income and expenses.
• Write a program to check if a number is a prime number using a sieve algorithm.
• Write a program to find the sum of all prime numbers below a given number.
• Write a program to implement a basic character counting application.
• Write a program to check if a string is a valid binary search tree.