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
1,223 questions at Bloomberg · all time
- Find X-Sum of All K-Long Subarrays IIhardArrayHash TableSliding WindowHeap (Priority Queue)frequency 8.2
- Find the Difference of Two ArrayseasyArrayHash Tablefrequency 8.2
- Find the Largest Almost Missing IntegereasyArrayHash Tablefrequency 8.2
- Find the Lexicographically Largest String From the Box ImediumTwo PointersStringEnumerationfrequency 8.2
- Find the Minimum and Maximum Number of Nodes Between Critical PointsmediumLinked Listfrequency 8.2
- Find the Number of Ways to Place People ImediumArrayMathGeometrySorting+1frequency 8.2
- Find the Original Typed String IIhardStringDynamic ProgrammingPrefix Sumfrequency 8.2
- Find the Safest Path in a GridmediumArrayBinary SearchBreadth-First SearchUnion-Find+2frequency 8.2
- Find the Sequence of Strings Appeared on the ScreenmediumStringSimulationfrequency 8.2
- Find the Winning Player in Coin GameeasyMathSimulationGame Theoryfrequency 8.2
- Flatten Nested List IteratormediumStackTreeDepth-First SearchDesign+2frequency 8.2
- Flip Columns For Maximum Number of Equal RowsmediumArrayHash TableMatrixfrequency 8.2
- Flower Planting With No AdjacentmediumDepth-First SearchBreadth-First SearchGraph TheoryGraph Coloringfrequency 8.2
- Fraction to Recurring DecimalmediumHash TableMathStringfrequency 8.2
- GCD of Odd and Even SumseasyMathNumber Theoryfrequency 8.2
- Generate Binary Strings Without Adjacent ZerosmediumStringBacktrackingBit Manipulationfrequency 8.2
- Generate Fibonacci Sequenceeasyfrequency 8.2
- Generate Tag for Video CaptioneasyStringSimulationfrequency 8.2
- Greatest Sum Divisible by ThreemediumArrayDynamic ProgrammingGreedySortingfrequency 8.2
- Grid GamemediumArrayMatrixPrefix Sumfrequency 8.2
- Group the People Given the Group Size They Belong TomediumArrayHash TableGreedyfrequency 8.2
- Grumpy Bookstore OwnermediumArraySliding Windowfrequency 8.2
- Human Traffic of StadiumhardDatabasefrequency 8.2
- Insert Greatest Common Divisors in Linked ListmediumLinked ListMathNumber Theoryfrequency 8.2
- Insertion Sort ListmediumLinked ListSortingfrequency 8.2
- Jump Game IXmediumArrayDynamic Programmingfrequency 8.2
- Jump Game VImediumArrayDynamic ProgrammingQueueHeap (Priority Queue)+1frequency 8.2
- K Inverse Pairs ArrayhardDynamic Programmingfrequency 8.2
- K Radius Subarray AveragesmediumArraySliding Windowfrequency 8.2
- Keep Multiplying Found Values by TwoeasyArrayHash TableSortingSimulationfrequency 8.2
- Kth Ancestor of a Tree NodehardBinary SearchDynamic ProgrammingBit ManipulationTree+4frequency 8.2
- Kth Smallest Number in Multiplication TablehardMathBinary Searchfrequency 8.2
- Largest Local Values in a MatrixeasyArrayMatrixfrequency 8.2
- Largest Number After Digit Swaps by ParityeasySortingHeap (Priority Queue)frequency 8.2
- Largest Number At Least Twice of OtherseasyArraySortingfrequency 8.2
- Largest Positive Integer That Exists With Its NegativeeasyArrayHash TableTwo PointersSortingfrequency 8.2
- Last Stone Weight IImediumArrayDynamic ProgrammingKnapsack Problem0-1 Knapsackfrequency 8.2
- Leaf-Similar TreeseasyTreeDepth-First SearchBinary Treefrequency 8.2
- Length of Longest Subarray With at Most K FrequencymediumArrayHash TableSliding Windowfrequency 8.2
- Letter Case PermutationmediumStringBacktrackingBit Manipulationfrequency 8.2
- Lexicographically Minimum String After Removing StarsmediumHash TableStringStackGreedy+1frequency 8.2
- Lexicographically Smallest Equivalent StringmediumStringUnion-Findfrequency 8.2
- Linked List ComponentsmediumArrayHash TableLinked Listfrequency 8.2
- Linked List in Binary TreemediumLinked ListTreeDepth-First SearchBinary Treefrequency 8.2
- Longest Arithmetic SubsequencemediumArrayHash TableBinary SearchDynamic Programmingfrequency 8.2
- Longest Duplicate SubstringhardStringBinary SearchSliding WindowRolling Hash+6frequency 8.2
- Longest Happy PrefixhardStringRolling HashString MatchingHash Function+2frequency 8.2
- Longest Subsequence With Non-Zero Bitwise XORmediumArrayBit Manipulationfrequency 8.2
- Longest Substring of One Repeating CharacterhardArrayStringSegment TreeOrdered Setfrequency 8.2
- Make Two Arrays Equal by Reversing SubarrayseasyArrayHash TableSortingfrequency 8.2
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.