More Problems

• Write a program to determine if a queue is a valid binary search tree.
• Write a program to find the maximum difference between two elements in a queue.
• Write a program to implement a queue that allows duplicate values.
• Write a program to remove all elements greater than the average in a queue.
• Write a program to find the length of the longest increasing subsequence in a queue.
• Write a program to implement a queue for managing a car wash service.
• Write a program to find the first repeated element after multiple operations in a queue.
• Write a program to implement a queue for managing game levels.