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Ixl LeetCode Questions 2026

Browse LeetCode problems frequently asked by Ixl. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 20 May 2026

ProblemDifficultyFrequencyTopics
Merge k Sorted ListsHARD
87.5%
Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
Find Median from Data StreamHARD
87.5%
Two PointersDesignSortingHeap (Priority Queue)Data Stream
Maximum Area of a Piece of Cake After Horizontal and Vertical CutsMEDIUM
62.5%
ArrayGreedySorting
Merge IntervalsMEDIUM
87.5%
ArraySorting
Fraction Addition and SubtractionMEDIUM
87.5%
MathStringSimulation
Range Addition IIEASY
100%
ArrayMath
Design Snake GameMEDIUM
75%
ArrayHash TableDesignQueueSimulation
Find the Derangement of An ArrayMEDIUM
87.5%
MathDynamic ProgrammingCombinatorics
Insert Delete GetRandom O(1)MEDIUM
75%
ArrayHash TableMathDesignRandomized
Find Peak ElementMEDIUM
75%
ArrayBinary Search
Fraction to Recurring DecimalMEDIUM
87.5%
Hash TableMathString
Stickers to Spell WordHARD
87.5%
ArrayHash TableStringDynamic ProgrammingBacktrackingBit ManipulationMemoizationBitmask
Minimum Number of Steps to Make Two Strings AnagramMEDIUM
62.5%
Hash TableStringCounting
Basic Calculator IIMEDIUM
75%
MathStringStack
Palindrome Linked ListEASY
87.5%
Linked ListTwo PointersStackRecursion
1-bit and 2-bit CharactersEASY
62.5%
Array
Course ScheduleMEDIUM
50%
Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort

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