More Problems

• Write a program to find the longest subsequence of characters that can be formed from a queue.
• Implement a function that uses a queue to perform breadth-first search (BFS) in a graph.
• Write a program to check if two queues can represent a valid sequence of operations.
• Implement a priority queue that retrieves the highest priority element in O(1) time.
• Write a program to find the shortest path in a grid using BFS and a queue.
• Implement a queue for managing orders in a restaurant with a priority system.
• Write a program to find the first unique character in a queue of characters.
• Implement a circular queue that supports resizing based on current usage.