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Snapchat LeetCode Questions 2026

Browse LeetCode problems frequently asked by Snapchat. 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
Valid Sudoku	MEDIUM	87.5%	ArrayHash TableMatrix
Sudoku Solver	HARD	87.5%	ArrayHash TableBacktrackingMatrix
Combination Sum	MEDIUM	87.5%	ArrayBacktracking
Combination Sum II	MEDIUM	87.5%	ArrayBacktracking
Wildcard Matching	HARD	87.5%	StringDynamic ProgrammingGreedyRecursion
Merge Intervals	MEDIUM	62.5%	ArraySorting
Minimum Window Substring	HARD	87.5%	Hash TableStringSliding Window
Word Search	MEDIUM	62.5%	ArrayStringBacktrackingDepth-First SearchMatrix
Unique Binary Search Trees	MEDIUM	87.5%	MathDynamic ProgrammingTreeBinary Search TreeBinary Tree
Best Time to Buy and Sell Stock III	HARD	62.5%	ArrayDynamic Programming
Binary Tree Maximum Path Sum	HARD	37.5%	Dynamic ProgrammingTreeDepth-First SearchBinary Tree
Word Ladder	HARD	87.5%	Hash TableStringBreadth-First Search
Word Break II	HARD	87.5%	ArrayHash TableStringDynamic ProgrammingBacktrackingTrieMemoization
LRU Cache	MEDIUM	100%	Hash TableLinked ListDesignDoubly-Linked List
Reverse Words in a String	MEDIUM	87.5%	Two PointersString
Min Stack	MEDIUM	87.5%	StackDesign
One Edit Distance	MEDIUM	87.5%	Two PointersString
Number of Islands	MEDIUM	100%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Reverse Linked List	EASY	87.5%	Linked ListRecursion
Course Schedule	MEDIUM	50%	Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort

Find algorithm patterns and generate explained solutions.