More Problems

• Write a program to check if a queue can represent a valid sequence of operations for a binary tree.
• Implement a function that finds the first k unique elements in a stream using a queue.
• Write a program to find the maximum frequency of characters in a queue after removing duplicates.
• Implement a queue for managing user feedback in a software application.
• Write a program to find the longest contiguous subsequence of even numbers in a queue.
• Implement a function that uses a queue to simulate a traffic management system.
• Write a program to find the average of numbers in a queue after removing even numbers.
• Implement a circular queue for managing tasks in a project.