More Problems

• Write a program to check if a number is a triangular number using a function.
• Write a program to find the sum of all the even numbers in a given range.
• Write a program to implement a basic online shopping application with a shopping cart.
• Write a program to check if two strings are equal ignoring case and punctuation.
• Write a program to find the longest substring without repeating characters using a sliding window.
• Write a program to implement a simple online reservation system for events.
• Write a program to check if a number is a happy number using a set.
• Write a program to find the maximum product of any two numbers in an array.