LeetCode The Hard Way

Bloomberg

1239 problems

ProblemDifficultyFrequency Topics
3658. GCD of Odd and Even SumsEasy13.5%
MathNumber Theory
The Dining PhilosophersMedium13.5%
Concurrency
3714. Longest Balanced Substring IIMedium13.5%
Hash TableStringPrefix Sum
799. Champagne TowerMedium13.5%
Dynamic Programming
761. Special Binary StringHard13.5%
StringDivide and ConquerSorting
1680. Concatenation of Consecutive Binary NumbersMedium13.5%
MathBit ManipulationSimulation
Remove Invalid ParenthesesHard13.5%
StringBacktrackingBreadth-First Search
1727. Largest Submatrix With RearrangementsMedium13.5%
ArrayGreedySortingMatrix
Alien DictionaryHard13.5%
ArrayStringDepth-First SearchBreadth-First SearchGraph TheoryTopological SortDirected Acyclic Graph
Human Traffic of StadiumHard13.5%
Database
3418. Maximum Amount of Money Robot Can EarnMedium13.5%
ArrayDynamic ProgrammingMatrix
1669. Merge In Between Linked ListsMedium13.5%
Linked List
3488. Closest Equal Element QueriesMedium13.5%
ArrayHash TableBinary Search
932. Beautiful ArrayMedium13.5%
ArrayMathDivide and Conquer
2078. Two Furthest Houses With Different ColorsEasy13.5%
ArrayGreedy
2452. Words Within Two Edits of DictionaryMedium13.5%
ArrayStringTrie
Frog JumpHard13.5%
ArrayDynamic Programming
2571. Minimum Operations to Reduce an Integer to 0Medium13.5%
Dynamic ProgrammingGreedyBit Manipulation
1722. Minimize Hamming Distance After Swap OperationsMedium13.5%
ArrayDepth-First SearchUnion-Find
Guess Number Higher or Lower IIMedium13.5%
MathDynamic ProgrammingMinimaxGame Theory
1721. Swapping Nodes in a Linked ListMedium13.5%
Linked ListTwo Pointers
941. Valid Mountain ArrayEasy13.5%
Array
2462. Total Cost to Hire K WorkersMedium13.5%
ArrayTwo PointersHeap (Priority Queue)Simulation
453. Minimum Moves to Equal Array ElementsMedium13.5%
ArrayMath
1952. Three DivisorsEasy13.5%
MathEnumerationNumber TheoryPrime FactorizationSieve Theory
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