More Problems

• Write a program to determine if a sequence of numbers can represent a valid queue.
• Implement a function that uses a queue to track the current state of a game.
• Write a program to find the first k unique characters in a stream using a queue.
• Implement a queue that supports merging two queues.
• Write a program to find the longest subsequence of numbers that can be formed from a given queue.
• Implement a priority queue for scheduling tasks based on deadlines.
• Write a program to check if a queue can represent a valid sequence of stack operations.
• Implement a function that uses a queue to find all subsets of a given set.