More Problems

• Write a program to implement a queue that supports duplicate values.
• Write a program to find the first non-repeating character in a queue after multiple operations.
• Write a program to check if a queue is balanced based on its operations.
• Write a program to find the maximum element in a queue using O(n) time.
• Write a program to implement a queue for managing student enrollment.
• Write a program to find the smallest number in a queue after several operations.
• Write a program to check if two queues can represent a valid binary tree.
• Write a program to implement a queue for managing service requests.