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Booking.com

16 questions tracked15 with solutions
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Frequency scoreSorted highest β†’ lowest frequencyβœ“ Our Solution = we have a detailed walkthrough

Showing 16 of 16 questions

1
MediumReward Top K Studentsβœ“ Our Solution
100
ArrayHash TableStringSorting+1
2
HardDelete Duplicate Folders in Systemβœ“ Our Solution
88
ArrayHash TableStringTrie+1
3
HardSliding Window Maximumβœ“ Our Solution
88
ArrayQueueSliding WindowHeap (Priority Queue)+1
4
MediumColoring A Borderβœ“ Our Solution
86
ArrayDepth-First SearchBreadth-First SearchMatrix
5
EasyTwo Out of Threeβœ“ Our Solution
86
ArrayHash TableBit Manipulation
6
MediumK Highest Ranked Items Within a Price Rangeβœ“ Our Solution
86
ArrayBreadth-First SearchSortingHeap (Priority Queue)+1
7
MediumOrder Two Columns Independently
86
Database
8
HardReconstruct Itineraryβœ“ Our Solution
75
Depth-First SearchGraphEulerian Circuit
9
MediumMaximal Squareβœ“ Our Solution
66
ArrayDynamic ProgrammingMatrix
10
MediumInteger to Romanβœ“ Our Solution
66
Hash TableMathString
11
EasyBackspace String Compareβœ“ Our Solution
61
Two PointersStringStackSimulation
12
MediumPermutationsβœ“ Our Solution
61
ArrayBacktracking
13
MediumNumber of Islandsβœ“ Our Solution
52
ArrayDepth-First SearchBreadth-First SearchUnion Find+1
14
EasyValid Parenthesesβœ“ Our Solution
52
StringStack
15
MediumLRU Cacheβœ“ Our Solution
52
Hash TableLinked ListDesignDoubly-Linked List
16
EasyRoman to Integerβœ“ Our Solution
52
Hash TableMathString