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Uber LeetCode Questions 2026

Browse LeetCode problems frequently asked by Uber. 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
Two Sum	EASY	62.5%	ArrayHash Table
Add Two Numbers	MEDIUM	25%	Linked ListMathRecursion
Longest Substring Without Repeating Characters	MEDIUM	25%	Hash TableStringSliding Window
Median of Two Sorted Arrays	HARD	25%	ArrayBinary SearchDivide and Conquer
Longest Palindromic Substring	MEDIUM	37.5%	Two PointersStringDynamic Programming
Reverse Integer	MEDIUM	25%	Math
String to Integer (atoi)	MEDIUM	50%	String
Regular Expression Matching	HARD	50%	StringDynamic ProgrammingRecursion
Container With Most Water	MEDIUM	25%	ArrayTwo PointersGreedy
Roman to Integer	EASY	62.5%	Hash TableMathString
Longest Common Prefix	EASY	37.5%	ArrayStringTrie
Letter Combinations of a Phone Number	MEDIUM	62.5%	Hash TableStringBacktracking
Valid Parentheses	EASY	25%	StringStack
Generate Parentheses	MEDIUM	50%	StringDynamic ProgrammingBacktracking
Merge k Sorted Lists	HARD	62.5%	Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
Swap Nodes in Pairs	MEDIUM	50%	Linked ListRecursion
Remove Duplicates from Sorted Array	EASY	25%	ArrayTwo Pointers
Remove Element	EASY	25%	ArrayTwo Pointers
Next Permutation	MEDIUM	37.5%	ArrayTwo Pointers
Longest Valid Parentheses	HARD	37.5%	StringDynamic ProgrammingStack

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