More Problems

• Implement a circular queue that supports operations from both ends.
• Write a program to find the longest contiguous subsequence of characters in a queue that can form a palindrome.
• Implement a function to simulate a multi-user chat application using a queue.
• Write a program to determine if a given sequence of numbers can represent a valid sequence of enqueue and dequeue operations.
• Implement a priority queue for scheduling tasks based on their importance and urgency.
• Write a program to find the first k distinct elements in a stream of numbers using a queue.
• Implement a function that tracks the last k elements added to a queue and their frequencies.
• Write a program to simulate a task manager that prioritizes tasks based on their time required and deadline.