More Problems

• Implement a function that counts the number of islands in a grid using a queue.
• Write a program to perform a level-order traversal of a binary tree using a queue.
• Implement a queue that allows for batch operations, such as enqueueing and dequeueing multiple elements at once.
• Write a program to find the shortest path in an unweighted graph using a queue.
• Implement a function to sort a queue using another queue as auxiliary storage.
• Write a program to find the maximum product of any three numbers in a queue.
• Implement a queue that supports reversing the order of elements.
• Write a program to determine if a queue can represent a valid sequence of operations in a stack.