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Palantir LeetCode Questions 2026

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

Last updated: 10 July 2026

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Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Merge k Sorted Lists	HARD	50%	Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
Minimum Time Difference	MEDIUM	75%	ArrayMathStringSorting
Merge Intervals	MEDIUM	50%	ArraySorting
Single Number	EASY	62.5%	ArrayBit Manipulation
LRU Cache	MEDIUM	62.5%	Hash TableLinked ListDesignDoubly-Linked List
Find Beautiful Indices in the Given Array I	MEDIUM	100%	Two PointersStringBinary SearchRolling HashString MatchingHash Function
Accounts Merge	MEDIUM	50%	ArrayHash TableStringDepth-First SearchBreadth-First SearchUnion-FindSorting
Contains Duplicate	EASY	62.5%	ArrayHash TableSorting
Contains Duplicate II	EASY	62.5%	ArrayHash TableSliding Window
Contains Duplicate III	HARD	62.5%	ArraySliding WindowSortingBucket SortOrdered Set
Find Beautiful Indices in the Given Array II	HARD	75%	Two PointersStringBinary SearchRolling HashString MatchingHash Function
Shortest Word Distance III	MEDIUM	50%	ArrayString
Construct Quad Tree	MEDIUM	50%	ArrayDivide and ConquerTreeMatrix
Integer to English Words	HARD	50%	MathStringRecursion
Range Sum Query - Immutable	EASY	62.5%	ArrayDesignPrefix Sum
Check If It Is a Straight Line	EASY	62.5%	ArrayMathGeometry
Maximum Size Subarray Sum Equals k	MEDIUM	62.5%	ArrayHash TablePrefix Sum
Find Players With Zero or One Losses	MEDIUM	37.5%	ArrayHash TableSortingCounting
Selling Pieces of Wood	HARD	62.5%	ArrayDynamic ProgrammingMemoization
Number of Divisible Triplet Sums	MEDIUM	37.5%	ArrayHash Table

Find algorithm patterns and generate explained solutions.