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
136 questions at Nvidia · all time
- Special Binary StringhardStringDivide and ConquerSortingfrequency 100.0
- LRU CachemediumHash TableLinked ListDesignDoubly-Linked Listfrequency 87.5
- Best Time to Buy and Sell StockeasyArrayDynamic Programmingfrequency 85.0
- Longest Substring Without Repeating CharactersmediumHash TableStringSliding Windowfrequency 83.6
- Two SumeasyArrayHash Tablefrequency 78.9
- Merge k Sorted ListshardLinked ListDivide and ConquerHeap (Priority Queue)Merge Sort+1frequency 77.1
- Valid ParentheseseasyStringStackBracket Sequencesfrequency 77.1
- Group AnagramsmediumArrayHash TableStringSortingfrequency 75.1
- Maximize Greatness of an ArraymediumArrayTwo PointersGreedySortingfrequency 75.1
- Last Stone WeighteasyArrayHeap (Priority Queue)frequency 73.0
- Maximum SubarraymediumArrayDivide and ConquerDynamic Programmingfrequency 73.0
- Minimum Operations to Reduce an Integer to 0mediumDynamic ProgrammingGreedyBit Manipulationfrequency 73.0
- Number of IslandsmediumArrayDepth-First SearchBreadth-First SearchUnion-Find+1frequency 73.0
- Restore IP AddressesmediumStringBacktrackingfrequency 73.0
- Fizz BuzzeasyMathStringSimulationfrequency 70.6
- Search in Rotated Sorted ArraymediumArrayBinary Searchfrequency 70.6
- Maximum Number of Visible PointshardArrayMathGeometrySliding Window+1frequency 67.9
- Reverse BitseasyDivide and ConquerBit Manipulationfrequency 67.9
- Trapping Rain WaterhardArrayTwo PointersDynamic ProgrammingStack+1frequency 67.9
- Container With Most WatermediumArrayTwo PointersGreedyfrequency 64.9
- Dot Product of Two Sparse VectorsmediumArrayHash TableTwo PointersDesign+1frequency 64.9
- 4SummediumArrayTwo PointersSortingfrequency 61.4
- Copy List with Random PointermediumHash TableLinked Listfrequency 61.4
- Find The Original Array of Prefix XormediumArrayBit Manipulationfrequency 61.4
- Find the Duplicate NumbermediumArrayTwo PointersBinary SearchBit Manipulation+2frequency 61.4
- Merge IntervalsmediumArraySortingQuicksortfrequency 61.4
- Top K Frequent ElementsmediumArrayHash TableDivide and ConquerSorting+4frequency 61.4
- Asteroid CollisionmediumArrayStackSimulationfrequency 57.3
- Break a PalindromemediumStringGreedyfrequency 57.3
- Product of Array Except SelfmediumArrayPrefix Sumfrequency 57.3
- Reverse Words in a StringmediumTwo PointersStringfrequency 57.3
- Rotate ListmediumLinked ListTwo Pointersfrequency 57.3
- Sliding Window MaximumhardArrayQueueSliding WindowHeap (Priority Queue)+2frequency 57.3
- Unique Paths IImediumArrayDynamic ProgrammingMatrixfrequency 57.3
- 3SummediumArrayTwo PointersSortingfrequency 52.3
- Add Two NumbersmediumLinked ListMathRecursionfrequency 52.3
- Climbing StairseasyMathDynamic ProgrammingMemoizationfrequency 52.3
- Fibonacci NumbereasyMathDynamic ProgrammingRecursionMemoizationfrequency 52.3
- House RobbermediumArrayDynamic Programmingfrequency 52.3
- Koko Eating BananasmediumArrayBinary Searchfrequency 52.3
- Linked List CycleeasyHash TableLinked ListTwo PointersFloyd's Cycle Finding Algorithmfrequency 52.3
- Longest Consecutive SequencemediumArrayHash TableUnion-Findfrequency 52.3
- Maximum Number of Events That Can Be AttendedmediumArrayGreedySortingHeap (Priority Queue)frequency 52.3
- Merge Sorted ArrayeasyArrayTwo PointersSortingfrequency 52.3
- Minimum Absolute DifferenceeasyArraySortingfrequency 52.3
- Missing NumbereasyArrayHash TableMathBinary Search+2frequency 52.3
- Power of TwoeasyMathBit ManipulationRecursionfrequency 52.3
- Rectangle AreamediumMathGeometryfrequency 52.3
- Remove Stones to Minimize the TotalmediumArrayGreedyHeap (Priority Queue)frequency 52.3
- Reverse Linked ListeasyLinked ListRecursionfrequency 52.3
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.