Problems
Callback's own problems and the LeetCode questions companies have been asking, in one place — pick a category, then filter by company, frequency, status, difficulty, topic, and language.
Asked on LeetCode
3,115 questions · all time
- Rearrange Spaces Between WordseasyString2 companies
- Total Waviness of Numbers in Range ImediumMathDynamic ProgrammingEnumeration2 companies
- Distribute CandieseasyArrayHash Table2 companies
- Minimum Swaps to Arrange a Binary GridmediumArrayGreedyMatrix2 companies
- Additive NumbermediumStringBacktracking2 companies
- All People Report to the Given ManagermediumDatabase2 companies
- Binary Tree Coloring GamemediumTreeDepth-First SearchBinary Tree2 companies
- Circle and Rectangle OverlappingmediumMathGeometry2 companies
- Distance Between Bus StopseasyArray2 companies
- Earliest Finish Time for Land and Water Rides IImediumArrayTwo PointersBinary SearchGreedy+12 companies
- Find Elements in a Contaminated Binary TreemediumHash TableTreeDepth-First SearchBreadth-First Search+22 companies
- Largest Prime from Consecutive Prime SummediumArrayMathNumber Theory2 companies
- Longest Uncommon Subsequence IeasyString2 companies
- Maximum White Tiles Covered by a CarpetmediumArrayBinary SearchGreedySliding Window+22 companies
- Median Employee SalaryhardDatabase2 companies
- Minimum Adjacent Swaps to Reach the Kth Smallest NumbermediumTwo PointersStringGreedy2 companies
- Minimum Increments to Equalize Leaf PathsmediumArrayDynamic ProgrammingTreeDepth-First Search2 companies
- Minimum Number of Operations to Make All Array Elements Equal to 1mediumArrayMathNumber TheoryEuclidean Algorithm+12 companies
- Minimum Unique Word AbbreviationhardArrayStringBacktrackingBit Manipulation2 companies
- Number of Common FactorseasyMathEnumerationNumber TheoryEuclidean Algorithm+12 companies
- Number of Substrings With Only 1smediumMathString2 companies
- Shortest Impossible Sequence of RollshardArrayHash TableGreedy2 companies
- Smallest Index With Equal ValueeasyArray2 companies
- Twisted Mirror Path CountmediumArrayDynamic ProgrammingMatrix2 companies
- Minimize Maximum of ArraymediumArrayBinary SearchDynamic ProgrammingGreedy+12 companies
- Count Number of Balanced PermutationshardMathStringDynamic ProgrammingCombinatorics2 companies
- Count the Number of Powerful IntegershardMathStringDynamic Programming2 companies
- Day of the YeareasyMathString2 companies
- Maximum Path Score in a GridmediumArrayDynamic ProgrammingMatrix2 companies
- XOR Queries of a SubarraymediumArrayBit ManipulationPrefix Sum2 companies
- Find the Count of Good IntegershardHash TableMathCombinatoricsEnumeration2 companies
- Find the Maximum Sum of Node ValueshardArrayDynamic ProgrammingGreedyBit Manipulation+22 companies
- Count Beautiful Splits in an ArraymediumArrayDynamic Programming2 companies
- Divide a String Into Groups of Size keasyStringSimulation2 companies
- Find the Maximum Number of Fruits CollectedhardArrayDynamic ProgrammingMatrix2 companies
- Get Equal Substrings Within BudgetmediumStringBinary SearchSliding WindowPrefix Sum2 companies
- Maximum Square Area by Removing Fences From a FieldmediumArrayHash TableEnumeration2 companies
- Mirror Distance of an IntegereasyMath2 companies
- Most Frequent Even ElementeasyArrayHash TableCounting2 companies
- Reshape Data: Melteasy2 companies
- Total Cost to Hire K WorkersmediumArrayTwo PointersHeap (Priority Queue)Simulation2 companies
- Convert the TemperatureeasyMath2 companies
- Divide Players Into Teams of Equal SkillmediumArrayHash TableTwo PointersSorting2 companies
- Maximum Sum of Two Non-Overlapping SubarraysmediumArrayDynamic ProgrammingSliding Window2 companies
- Out of Boundary PathsmediumDynamic Programming2 companies
- Partitioning Into Minimum Number Of Deci-Binary NumbersmediumStringGreedy2 companies
- Calculate Special BonuseasyDatabase2 companies
- Count Operations to Obtain ZeroeasyMathSimulation2 companies
- Fraction Addition and SubtractionmediumMathStringSimulationEuclidean Algorithm+12 companies
- Jump Game VhardArrayDynamic ProgrammingSorting2 companies
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.