LeetCode The Hard Way

Wix

51 problems

ProblemDifficultyFrequency Topics
133. Clone GraphMedium87.4%
Hash TableDepth-First SearchBreadth-First SearchGraph Theory
392. Is SubsequenceEasy87.4%
Two PointersStringDynamic Programming
138. Copy List with Random PointerMedium87.4%
Hash TableLinked List
Employees Earning More Than Their ManagersEasy87.4%
Database
929. Unique Email AddressesEasy87.4%
ArrayHash TableString
199. Binary Tree Right Side ViewMedium87.4%
TreeDepth-First SearchBreadth-First SearchBinary Tree
953. Verifying an Alien DictionaryEasy87.4%
ArrayHash TableString
Lowest Common Ancestor of a Binary TreeMedium87.4%
TreeDepth-First SearchBinary TreeBinary LiftingLowest Common Ancestor
Shortest Word DistanceEasy87.4%
ArrayString
973. K Closest Points to OriginMedium87.4%
ArrayMathDivide and ConquerGeometrySortingHeap (Priority Queue)QuickselectK-D Tree
1169. Invalid TransactionsMedium87.4%
ArrayHash TableStringSorting
Group Shifted StringsMedium87.4%
ArrayHash TableString
994. Rotting OrangesMedium87.4%
ArrayBreadth-First SearchMatrix
Strong Password CheckerHard87.4%
StringGreedyHeap (Priority Queue)
78. SubsetsMedium69.6%
ArrayBacktrackingBit Manipulation
789. Escape The GhostsMedium69.6%
ArrayMath
1162. As Far from Land as PossibleMedium69.6%
ArrayDynamic ProgrammingBreadth-First SearchMatrix
12. Integer to RomanMedium62.2%
Hash TableMathString
Decode StringMedium62.2%
StringStackRecursion
212. Word Search IIHard51.8%
ArrayStringBacktrackingTrieMatrix
13. Roman to IntegerEasy51.8%
Hash TableMathString
20. Valid ParenthesesEasy51.8%
StringStackBracket Sequences
Lowest Common Ancestor of a Binary Tree IIIMedium51.8%
Hash TableTwo PointersTreeBinary TreeBinary LiftingLowest Common Ancestor
Shortest Distance from All BuildingsHard51.8%
ArrayBreadth-First SearchMatrix
Fibonacci NumberEasy51.8%
MathDynamic ProgrammingRecursionMemoization
AlgoMonsterVisit ZapplyCertGarden
Your logo here
Become a sponsor
Buy Me A Coffee