LeetCode The Hard Way

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147 problems

ProblemDifficultyFrequency Topics
1004. Max Consecutive Ones IIIMedium44.1%
ArrayBinary SearchSliding WindowPrefix Sum
Count Complete Tree NodesMedium44.1%
Binary SearchBit ManipulationTreeBinary Tree
Trim a Binary Search TreeMedium44.1%
TreeDepth-First SearchBinary Search TreeBinary Tree
2275. Largest Combination With Bitwise AND Greater Than ZeroMedium44.1%
ArrayHash TableBit ManipulationCounting
Boundary of Binary TreeMedium44.1%
TreeDepth-First SearchBinary Tree
1507. Reformat DateEasy44.1%
String
Maximum Profit From Trading StocksMedium44.1%
ArrayDynamic Programming
392. Is SubsequenceEasy44.1%
Two PointersStringDynamic Programming
332. Reconstruct ItineraryHard44.1%
ArrayStringDepth-First SearchGraph TheorySortingHeap (Priority Queue)Eulerian CircuitEulerian PathSemi-Eulerian Graph
1482. Minimum Number of Days to Make m BouquetsMedium44.1%
ArrayBinary Search
Spiral Matrix IIMedium44.1%
ArrayMatrixSimulation
1326. Minimum Number of Taps to Open to Water a GardenHard44.1%
ArrayDynamic ProgrammingGreedy
695. Max Area of IslandMedium44.1%
ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
138. Copy List with Random PointerMedium44.1%
Hash TableLinked List
901. Online Stock SpanMedium44.1%
StackDesignMonotonic StackData Stream
First Missing PositiveHard44.1%
ArrayHash Table
849. Maximize Distance to Closest PersonMedium44.1%
Array
1823. Find the Winner of the Circular GameMedium44.1%
ArrayMathRecursionQueueSimulation
567. Permutation in StringMedium44.1%
Hash TableTwo PointersStringSliding Window
Max Consecutive OnesEasy44.1%
Array
Basic CalculatorHard44.1%
MathStringStackRecursion
Sqrt(x)Easy44.1%
MathBinary SearchNewton's Method
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