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Yahoo LeetCode Questions 2026

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

Last updated: 20 May 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Two Sum	EASY	100%	ArrayHash Table
Median of Two Sorted Arrays	HARD	100%	ArrayBinary SearchDivide and Conquer
Palindrome Number	EASY	50%	Math
Roman to Integer	EASY	100%	Hash TableMathString
Longest Common Prefix	EASY	62.5%	ArrayStringTrie
Valid Parentheses	EASY	50%	StringStack
Search in Rotated Sorted Array	MEDIUM	50%	ArrayBinary Search
Combination Sum	MEDIUM	62.5%	ArrayBacktracking
Spiral Matrix	MEDIUM	50%	ArrayMatrixSimulation
Validate Binary Search Tree	MEDIUM	50%	TreeDepth-First SearchBinary Search TreeBinary Tree
Maximum Depth of Binary Tree	EASY	100%	TreeDepth-First SearchBreadth-First SearchBinary Tree
Word Break	MEDIUM	100%	ArrayHash TableStringDynamic ProgrammingTrieMemoization
Linked List Cycle	EASY	100%	Hash TableLinked ListTwo Pointers
LRU Cache	MEDIUM	100%	Hash TableLinked ListDesignDoubly-Linked List
Number of Islands	MEDIUM	50%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Reverse Linked List	EASY	100%	Linked ListRecursion
Contains Duplicate	EASY	100%	ArrayHash TableSorting
Peeking Iterator	MEDIUM	100%	ArrayDesignIterator
Serialize and Deserialize Binary Tree	HARD	100%	StringTreeDepth-First SearchBreadth-First SearchDesignBinary Tree
Top K Frequent Elements	MEDIUM	75%	ArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect

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