More Problems

• Write a program to check if a queue can represent a valid sequence of operations.
• Write a program to implement a queue for managing incoming service requests.
• Write a program to find the smallest number in a queue after several operations.
• Write a program to simulate a food delivery queue.
• Write a program to find the longest increasing subsequence in a queue.
• Write a program to implement a queue that can retrieve the last element.
• Write a program to check if two queues are equal in terms of contents.
• Write a program to find the first unique character in a queue after multiple operations.