Problems
Callback's own problems and the LeetCode questions companies have been asking, in one place — filter by category, company, topic, difficulty, and how recently a question showed up.
Asked on LeetCode
2,344 questions at Google · all time
- Maximum Number of K-Divisible ComponentshardTreeDepth-First Searchfrequency 25.4
- Maximum Product of Word LengthsmediumArrayStringBit Manipulationfrequency 25.4
- Maximum Sum of Distinct Subarrays With Length KmediumArrayHash TableSliding Windowfrequency 25.4
- Minimum Number of Flips to Make the Binary String AlternatingmediumStringDynamic ProgrammingSliding Windowfrequency 25.4
- N-th Tribonacci NumbereasyMathDynamic ProgrammingMemoizationfrequency 25.4
- Nim GameeasyMathBrainteaserMinimaxGame Theory+2frequency 25.4
- Number of Ways to Build Sturdy Brick WallmediumArrayDynamic ProgrammingBit ManipulationBitmaskfrequency 25.4
- Path SumeasyTreeDepth-First SearchBreadth-First SearchBinary Treefrequency 25.4
- Path With Maximum Minimum ValuemediumArrayBinary SearchDepth-First SearchBreadth-First Search+4frequency 25.4
- Path with Maximum ProbabilitymediumArrayGraph TheoryHeap (Priority Queue)Shortest Path+1frequency 25.4
- Rank Teams by VotesmediumArrayHash TableStringSorting+1frequency 25.4
- Relative RankseasyArraySortingHeap (Priority Queue)frequency 25.4
- Search in a Binary Search TreeeasyTreeBinary Search TreeBinary Treefrequency 25.4
- Shortest BridgemediumArrayDepth-First SearchBreadth-First SearchMatrixfrequency 25.4
- Shortest Distance from All BuildingshardArrayBreadth-First SearchMatrixfrequency 25.4
- Sort Array By ParityeasyArrayTwo PointersSortingfrequency 25.4
- Special Array IeasyArrayfrequency 25.4
- Stock Price FluctuationmediumHash TableDesignHeap (Priority Queue)Data Stream+1frequency 25.4
- Toeplitz MatrixeasyArrayMatrixfrequency 25.4
- Word PatterneasyHash TableStringfrequency 25.4
- Binary WatcheasyBacktrackingBit Manipulationfrequency 24.4
- Buddy StringseasyHash TableStringfrequency 24.4
- Construct Binary Search Tree from Preorder TraversalmediumArrayStackTreeBinary Search Tree+2frequency 24.4
- Construct Binary Tree from Preorder and Postorder TraversalmediumArrayHash TableDivide and ConquerTree+1frequency 24.4
- Continuous Subarray SummediumArrayHash TableMathPrefix Sum+1frequency 24.4
- Count Non-Decreasing Subarrays After K OperationshardArrayStackSegment TreeQueue+3frequency 24.4
- Count Servers that CommunicatemediumArrayDepth-First SearchBreadth-First SearchUnion-Find+2frequency 24.4
- Counting Words With a Given PrefixeasyArrayStringString Matchingfrequency 24.4
- Describe the PaintingmediumArrayHash TableSortingPrefix Sumfrequency 24.4
- Design Add and Search Words Data StructuremediumStringDepth-First SearchDesignTriefrequency 24.4
- Dungeon GamehardArrayDynamic ProgrammingMatrixfrequency 24.4
- Evaluate the Bracket Pairs of a StringmediumArrayHash TableStringfrequency 24.4
- Exchange SeatsmediumDatabasefrequency 24.4
- Fill a Special GridmediumArrayDivide and ConquerMatrixfrequency 24.4
- Find All People With SecrethardDepth-First SearchBreadth-First SearchUnion-FindGraph Theory+1frequency 24.4
- Find Minimum in Rotated Sorted Array IIhardArrayBinary Searchfrequency 24.4
- Find N Unique Integers Sum up to ZeroeasyArrayMathfrequency 24.4
- Find Target Indices After Sorting ArrayeasyArrayBinary SearchSortingfrequency 24.4
- Find the Number of Ways to Place People ImediumArrayMathGeometrySorting+1frequency 24.4
- Game Play Analysis IVmediumDatabasefrequency 24.4
- Immediate Food Delivery IImediumDatabasefrequency 24.4
- Insert into a Binary Search TreemediumTreeBinary Search TreeBinary Treefrequency 24.4
- Knight DialermediumDynamic Programmingfrequency 24.4
- Largest Submatrix With RearrangementsmediumArrayGreedySortingMatrixfrequency 24.4
- Lemonade ChangeeasyArrayGreedyfrequency 24.4
- Magic Squares In GridmediumArrayHash TableMathMatrixfrequency 24.4
- Matrix Block SummediumArrayMatrixPrefix Sumfrequency 24.4
- Maximum Frequency of an Element After Performing Operations IIhardArrayBinary SearchSliding WindowSorting+1frequency 24.4
- Maximum Number of Points with CostmediumArrayDynamic ProgrammingMatrixfrequency 24.4
- Maximum Product of Two Elements in an ArrayeasyArraySortingHeap (Priority Queue)frequency 24.4
Listings only — titles, difficulty, and tags link out to LeetCode. Imported from the leetcode-company-wise-problems snapshot dated 1 June 2025. Frequency is that dataset's own relative score within a company and time range.