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6 questions tracked4 with solutions
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Frequency scoreSorted highest β†’ lowest frequencyβœ“ Our Solution = we have a detailed walkthrough

Showing 6 of 6 questions

1
HardWord Ladderβœ“ Our Solution
100
Hash TableStringBreadth-First Search
2
MediumNumber of Ways to Buy Pens and Pencilsβœ“ Our Solution
89
MathEnumeration
3
MediumLRU Cacheβœ“ Our Solution
82
Hash TableLinked ListDesignDoubly-Linked List
4
MediumDesign Hit Counter
71
ArrayBinary SearchDesignQueue+1
5
EasyLogger Rate Limiter
71
Hash TableDesignData Stream
6
MediumNumber of Islandsβœ“ Our Solution
57
ArrayDepth-First SearchBreadth-First SearchUnion Find+1