Z

Zeta

21 questions tracked20 with solutions
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Frequency scoreSorted highest β†’ lowest frequencyβœ“ Our Solution = we have a detailed walkthrough

Showing 21 of 21 questions

1
MediumApply Operations to Make Two Strings Equalβœ“ Our Solution
100
StringDynamic Programming
2
HardSplit Array Largest Sumβœ“ Our Solution
71
ArrayBinary SearchDynamic ProgrammingGreedy+1
3
MediumTask Schedulerβœ“ Our Solution
71
ArrayHash TableGreedySorting+2
4
MediumEvaluate Divisionβœ“ Our Solution
71
ArrayStringDepth-First SearchBreadth-First Search+3
5
71
ArrayGreedySortingHeap (Priority Queue)
6
MediumNext Greater Element IIβœ“ Our Solution
71
ArrayStackMonotonic Stack
7
MediumInsert Delete GetRandom O(1)βœ“ Our Solution
71
ArrayHash TableMathDesign+1
8
HardMaximum Profit in Job Schedulingβœ“ Our Solution
71
ArrayBinary SearchDynamic ProgrammingSorting
9
MediumCapacity To Ship Packages Within D Daysβœ“ Our Solution
61
ArrayBinary Search
10
HardLongest Valid Parenthesesβœ“ Our Solution
61
StringDynamic ProgrammingStack
11
HardMinimum Window Substringβœ“ Our Solution
61
Hash TableStringSliding Window
12
MediumCount Univalue Subtrees
61
TreeDepth-First SearchBinary Tree
13
HardTrapping Rain Waterβœ“ Our Solution
61
ArrayTwo PointersDynamic ProgrammingStack+1
14
MediumMinimum Operations to Write the Letter Y on a Gridβœ“ Our Solution
61
ArrayHash TableMatrixCounting
15
HardSubstring with Concatenation of All Wordsβœ“ Our Solution
61
Hash TableStringSliding Window
16
MediumInterleaving Stringβœ“ Our Solution
61
StringDynamic Programming
17
MediumLongest Substring Without Repeating Charactersβœ“ Our Solution
61
Hash TableStringSliding Window
18
MediumNumber of Islandsβœ“ Our Solution
61
ArrayDepth-First SearchBreadth-First SearchUnion Find+1
19
MediumFind a Peak Element IIβœ“ Our Solution
61
ArrayBinary SearchMatrix
20
HardInsert Delete GetRandom O(1) - Duplicates allowedβœ“ Our Solution
61
ArrayHash TableMathDesign+1
21
HardReverse Nodes in k-Groupβœ“ Our Solution
61
Linked ListRecursion