More Problems

• Write a program to check if two sequences can represent a valid enqueue-dequeue operation in a queue.
• Implement a queue for managing user messages in a chat application.
• Write a program to find the average of all elements in a queue after removing duplicates.
• Implement a function that simulates a multi-threaded environment using a queue.
• Write a program to find the sum of all even numbers in a queue after removing duplicates.
• Implement a queue that can serialize and deserialize itself for storage.
• Write a program to determine if a queue can represent a valid sequence of operations for a binary tree.
• Implement a function that finds the longest substring without repeating characters using a queue.