More Problems

• 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.
• Write a program to implement the depth-first search algorithm for a graph.
• Write a program to find the largest product of two non-adjacent numbers in an array.
• Write a program to implement the Sieve of Eratosthenes for finding all prime numbers up to a given limit.