More Problems

• Write a program to implement a binary tree with in-order, pre-order, and post-order traversals.
• Write a program to find the maximum product of three integers in an array.
• Write a program to implement a simple online coding platform for coding challenges.
• Write a program to check if a number is a perfect number using its factors.
• Write a program to find the sum of the first n Fibonacci numbers using an iterative approach.
• Write a program to implement a simple online shopping application with user accounts.
• Write a program to check if a string is a valid palindrome considering punctuation and spaces.
• Write a program to find the longest common prefix among multiple strings using a trie.