More Problems

• Write a program to implement a queue that supports enqueue and dequeue in O(1).
• Write a program to find the total number of distinct characters in a queue.
• Write a program to remove duplicates from a queue while maintaining order.
• Write a program to print the elements of a queue that are perfect squares.
• Write a program to implement a queue using two queues.
• Write a program to determine the number of elements that are even in a queue.
• Write a program to implement a queue for managing stock trades.
• Write a program to check if a queue can be rearranged to form a palindrome.