More Problems

• Write a program to find the first non-repeating character in a stream of characters using a queue.
• Implement a circular queue for managing event notifications in a messaging app.
• Write a program to simulate a bank queue with customers arriving at random intervals.
• Implement a queue that maintains the maximum element during a series of operations.
• Write a program to find the longest contiguous subsequence of numbers that can be formed from a queue.
• Implement a function to track the history of enqueue and dequeue operations for an undo feature.
• Write a program to check if a queue can be rearranged to match another queues order.
• Implement a function that generates all permutations of a string using a queue.