More Problems

• Write a program to find the sum of elements in a queue after removing negative numbers.
• Implement a function to track the history of operations in a queue.
• Write a program to find the longest subsequence of characters in a queue that forms a palindrome.
• Implement a queue for managing scheduled tasks in a project management application.
• Write a program to check if two queues can represent a valid sequence of operations for a binary tree.
• Implement a queue for managing events in a simulation environment.
• Write a program to find the maximum element in a sliding window using a queue.
• Implement a queue that supports reversing elements and restoring them back to their original order.