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Zopsmart

18 questions tracked18 with solutions
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Frequency scoreSorted highest β†’ lowest frequencyβœ“ Our Solution = we have a detailed walkthrough

Showing 18 of 18 questions

1
MediumZigzag Conversionβœ“ Our Solution
100
String
2
HardTrapping Rain Waterβœ“ Our Solution
85
ArrayTwo PointersDynamic ProgrammingStack+1
3
MediumReverse Nodes in Even Length Groupsβœ“ Our Solution
83
Linked List
4
HardMinimum Window Substringβœ“ Our Solution
73
Hash TableStringSliding Window
5
MediumBulls and Cowsβœ“ Our Solution
69
Hash TableStringCounting
6
MediumFraction Addition and Subtractionβœ“ Our Solution
69
MathStringSimulation
7
MediumRemove K Digitsβœ“ Our Solution
65
StringStackGreedyMonotonic Stack
8
MediumContainer With Most Waterβœ“ Our Solution
59
ArrayTwo PointersGreedy
9
MediumGroup Anagramsβœ“ Our Solution
59
ArrayHash TableStringSorting
10
MediumReverse Words in a Stringβœ“ Our Solution
59
Two PointersString
11
51
ArrayTwo PointersSorting
12
EasyBest Time to Buy and Sell Stockβœ“ Our Solution
51
ArrayDynamic Programming
13
MediumAdd Two Numbersβœ“ Our Solution
51
Linked ListMathRecursion
14
MediumLetter Combinations of a Phone Numberβœ“ Our Solution
51
Hash TableStringBacktracking
15
EasyReverse Linked Listβœ“ Our Solution
51
Linked ListRecursion
16
HardReverse Nodes in k-Groupβœ“ Our Solution
51
Linked ListRecursion
17
MediumLongest Palindromic Substringβœ“ Our Solution
51
Two PointersStringDynamic Programming
18
MediumSort Colorsβœ“ Our Solution
51
ArrayTwo PointersSorting