More Problems

• Write a program to track the maximum and minimum values in a queue after each operation.
• Implement a queue for managing tickets in a customer support system.
• Write a program to check if two queues can represent a valid sequence of operations for a binary search tree.
• Implement a queue that supports operations for undo and redo functionalities.
• Write a program to find the longest valid parentheses substring using a queue.
• Implement a queue that can efficiently merge two queues.
• Write a program to find the maximum product of any two elements in a queue.
• Implement a function to find the first non-repeating character in a stream of characters using a queue.