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Baidu LeetCode Questions 2026

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

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Binary Tree Maximum Path Sum	HARD	100%	Dynamic ProgrammingTreeDepth-First SearchBinary Tree
Longest Substring with At Least K Repeating Characters	MEDIUM	100%	Hash TableStringDivide and ConquerSliding Window
Integer Replacement	MEDIUM	100%	Dynamic ProgrammingGreedyBit ManipulationMemoization
Split Array Largest Sum	HARD	100%	ArrayBinary SearchDynamic ProgrammingGreedyPrefix Sum
Arithmetic Slices	MEDIUM	100%	ArrayDynamic ProgrammingSliding Window
Arithmetic Slices II - Subsequence	HARD	100%	ArrayDynamic Programming
Zuma Game	HARD	100%	StringDynamic ProgrammingStackBreadth-First SearchMemoization
Out of Boundary Paths	MEDIUM	100%	Dynamic Programming
Design In-Memory File System	HARD	100%	Hash TableStringDesignTrieSorting
Length of Longest Fibonacci Subsequence	MEDIUM	100%	ArrayHash TableDynamic Programming
Search a 2D Matrix II	MEDIUM	62.5%	ArrayBinary SearchDivide and ConquerMatrix

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