More Problems

• 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.
• Write a program to find the longest sequence of odd integers in a queue.
• Write a program to remove all negative numbers from a queue.
• Write a program to check if two queues can be merged to form a valid sequence.