More Problems

• Write a program to check if a queue can represent a valid binary tree after operations.
• Write a program to implement a circular queue using arrays for task management.
• Write a program to find the first unique character in a queue after multiple enqueue operations.
• Write a program to simulate a customer service queue for handling complaints.
• Write a program to find the longest contiguous subsequence of characters in a queue.
• Write a program to implement a queue for managing customer reviews.
• Write a program to find the average of all elements in a queue after removing duplicates.
• Write a program to check if a queue can represent a valid infix expression after operations.