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Huawei LeetCode Questions 2026

Browse LeetCode problems frequently asked by Huawei. 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	75%	ArrayHash Table
Valid Parentheses	EASY	75%	StringStack
Minimum Number of Visited Cells in a Grid	HARD	100%	ArrayDynamic ProgrammingStackBreadth-First SearchUnion-FindHeap (Priority Queue)MatrixMonotonic Stack
Number of Islands	MEDIUM	75%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Maximum Binary String After Change	MEDIUM	100%	StringGreedy
Decode String	MEDIUM	62.5%	StringStackRecursion
Generate Parentheses	MEDIUM	75%	StringDynamic ProgrammingBacktracking
Merge Two Sorted Lists	EASY	75%	Linked ListRecursion
Maximum Subarray	MEDIUM	62.5%	ArrayDivide and ConquerDynamic Programming
Longest Palindromic Substring	MEDIUM	75%	Two PointersStringDynamic Programming
N-Queens	HARD	62.5%	ArrayBacktracking
Longest Increasing Subsequence	MEDIUM	75%	ArrayBinary SearchDynamic Programming
Trapping Rain Water	HARD	62.5%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
Container With Most Water	MEDIUM	62.5%	ArrayTwo PointersGreedy
Linked List Cycle	EASY	62.5%	Hash TableLinked ListTwo Pointers
Top K Frequent Elements	MEDIUM	62.5%	ArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect
Single Number	EASY	62.5%	ArrayBit Manipulation

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