More Problems

• Write a program to find the first unique character in a queue after multiple enqueue operations.
• Write a program to implement a circular queue using arrays for managing tasks.
• Write a program to find the sum of elements in a queue after removing negative numbers.
• Write a program to check if two queues can represent a valid binary tree.
• Write a program to find the longest subsequence of odd integers in a queue.
• Write a program to implement a queue for managing user registrations.
• Write a program to find the average of elements in a queue after removing odd numbers.
• Write a program to check if a queue is valid based on enqueue and dequeue operations.