Queue problems

30 Queue DSA practice problems on CampusCode, each with statement, examples and constraints.

• 579. Reverse First K Elements of Queue Easy Stack
• 580. Interleave First Half with Second Half Easy Stack
• 581. Generate Binary Numbers from 1 to N Easy Stack
• 582. BFS Level Order Traversal Using Queue Easy Stack
• 583. Check if Queue is Palindrome Easy Stack
• 585. Students Unable to Eat Lunch Easy Stack
• 586. Time Needed to Buy Tickets Easy Stack
• 587. First Non-Repeating Character in Stream Easy Stack
• 588. Number of Recent Calls Easy Stack
• 599. Task Scheduler — Simple Version Easy Stack
• 607. Rotting Oranges — BFS via Queue Easy Stack
• 622. Task Scheduler (Greedy + Queue) Medium Stack
• 625. Dota2 Senate Medium Stack
• 626. Reveal Cards in Increasing Order Medium Stack
• 627. Design Snake Game Medium Stack
• 628. Open the Lock (BFS + Queue) Medium Stack
• 639. Walls and Gates Medium Stack
• 640. Shortest Path in Binary Matrix Medium Stack
• 641. Perfect Squares Medium Stack
• 642. As Far from Land as Possible Medium Stack
• 643. Map of Highest Peak Medium Stack
• 647. Snakes and Ladders Medium Stack
• 649. Count of Students Unable to Eat Lunch Medium Stack
• 650. Minimum Number of Flips to Convert Binary Matrix to Zero Medium Stack
• 672. Shortest Path in a Grid with Obstacles Elimination Hard Stack
• 673. Sliding Puzzle — Minimum Moves Hard Stack
• 674. Cut Off Trees for Golf Event Hard Stack
• 675. Minimum Genetic Mutation Hard Stack
• 676. Word Ladder — Shortest Transformation Hard Stack
• 685. Bus Routes Hard Stack