Most Asked Problems on Queue Data Structure in Programming Interviews

A Queue is the data structure used to store and manage the data in a specific order by following the principle of First In First Out (FIFO). The article "Most Asked Problems on Queue Data Structure in Programming Interviews" benefits you by providing good examples of every problem of the tree. It provides the problems from the basic to the hard level. It covers the core and important problems of Queue.

Here is the list of queue problems to excel in the Data Structure and Algorithms:

Easy Queue Problems

• Print elements of a queue line by line
• Graph BFS implementation
• Binary Tree Minimum Depth
• Queue using Two Stacks
• Circular Queue Implementation
• Level Order Line by Line Tree Traversal
• Distance from Nearest Cell to All Other Cells
• Number of Recent Calls
• First Unique Number in Data Stream
• Implement Deque (Double-ended Queue)

Medium Queue Problems

• Thread Intercommunication
• Implement a blocking queue
• implementation with Priority Queue
• Implement stack operations using queues
• Check graph bipartiteness
• Binary tree right view
• Generate binary numbers sequence
• Design a concurrent queue
• Anti Clockwise spiral traversal
• Petrol pump circular tour
• Find Median from Data Stream using Two Queues
• Snake and Ladder Game
• Task Scheduler
• Meeting Rooms II (Priority Queue)

Hard Queue Problems

• Maximum in sliding window
• What are the scheduling Queues
• Find if there is a path between two vertices in a directed graph
• Minimum cost of path between given nodes containing at most K nodes in a directed and weighted graph
• Turn a Queue into a Priority Queue
• Reverse a Stack using Queue