More Problems

• Write a program to find the longest contiguous subsequence of numbers that can be formed from a queue.
• Implement a queue that supports undo operations for the last k operations.
• Write a program to find the maximum product of k elements in a queue.
• Implement a function that generates all unique permutations of a given string using a queue.
• Write a program to find the longest subsequence of characters that can form a valid palindrome.
• Implement a queue for managing incoming customer service requests.
• Write a program to check if a queue can represent a valid sequence of operations for a binary search tree.
• Implement a function that merges two sorted queues into a single sorted queue.