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HomeLeetCode ProblemsQueue

Queue Problems

40 Queue LeetCode problems · Solve with AI-powered hints & step-by-step explanations.

225Implement Stack using QueuesEasy232Implement Queue using StacksEasy239Sliding Window MaximumHard341Flatten Nested List IteratorMedium387First Unique Character in a StringEasy622Design Circular QueueMedium641Design Circular DequeMedium649Dota2 SenateMedium862Shortest Subarray with Sum at Least KHard918Maximum Sum Circular SubarrayMedium933Number of Recent CallsEasy936Stamping The SequenceHard950Reveal Cards In Increasing OrderMedium995Minimum Number of K Consecutive Bit FlipsHard1425Constrained Subsequence SumHard1438Longest Continuous Subarray With Absolute Diff Less Than or Equal to LimitMedium1499Max Value of EquationHard1670Design Front Middle Back QueueMedium1687Delivering Boxes from Storage to PortsHard1696Jump Game VIMedium1700Number of Students Unable to Eat LunchEasy1823Find the Winner of the Circular GameMedium1825Finding MK AverageHard2071Maximum Number of Tasks You Can AssignHard2073Time Needed to Buy TicketsEasy2327Number of People Aware of a SecretMedium2398Maximum Number of Robots Within BudgetHard2407Longest Increasing Subsequence IIHard2444Count Subarrays With Fixed BoundsHard2526Find Consecutive Integers from a Data StreamMedium2528Maximize the Minimum Powered CityHard2762Continuous SubarraysMedium2944Minimum Number of Coins for FruitsMedium2945Find Maximum Non-decreasing Array LengthHard3117Minimum Sum of Values by Dividing ArrayHard3191Minimum Operations to Make Binary Array Elements Equal to One IMedium3420Count Non-Decreasing Subarrays After K OperationsHard3508Implement RouterMedium3578Count Partitions With Max-Min Difference at Most KMedium3589Count Prime-Gap Balanced SubarraysMedium
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