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Tesla LeetCode Questions 2026

Browse LeetCode problems frequently asked by Tesla. 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
Longest Substring Without Repeating Characters	MEDIUM	75%	Hash TableStringSliding Window
Container With Most Water	MEDIUM	50%	ArrayTwo PointersGreedy
Letter Combinations of a Phone Number	MEDIUM	75%	Hash TableStringBacktracking
3Sum	MEDIUM	75%	ArrayTwo PointersSorting
Valid Parentheses	EASY	75%	StringStack
Best Time to Buy and Sell Stock	EASY	87.5%	ArrayDynamic Programming
LRU Cache	MEDIUM	75%	Hash TableLinked ListDesignDoubly-Linked List
Number of Islands	MEDIUM	87.5%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Basic Calculator II	MEDIUM	87.5%	MathStringStack
Top K Frequent Elements	MEDIUM	62.5%	ArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect
Design Tic-Tac-Toe	MEDIUM	50%	ArrayHash TableDesignMatrixSimulation
Reorganize String	MEDIUM	87.5%	Hash TableStringGreedySortingHeap (Priority Queue)Counting
Find Followers Count	EASY	87.5%	Database
Design Circular Queue	MEDIUM	87.5%	ArrayLinked ListDesignQueue
Minimum Changes To Make Alternating Binary String	EASY	87.5%	String
Valid Anagram	EASY	50%	Hash TableStringSorting
Building H2O	MEDIUM	87.5%	Concurrency
Merge Intervals	MEDIUM	100%	ArraySorting
First Missing Positive	HARD	50%	ArrayHash Table
Trapping Rain Water	HARD	75%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack

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