More Problems

• Write a program to implement a queue that supports multiple operations.
• Write a program to find the total number of distinct elements in a queue.
• Write a program to remove elements at even indices from a queue.
• Write a program to implement a queue using an array with circular indexing.
• Write a program to determine if a queue can represent a valid postfix expression.
• Write a program to find the first unique character after multiple operations in a queue.
• Write a program to simulate a queue for managing email subscriptions.
• Write a program to implement a queue for managing event registrations.