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Tesla

46 questions tracked43 with solutions
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Frequency scoreSorted highest β†’ lowest frequencyβœ“ Our Solution = we have a detailed walkthrough

Showing 46 of 46 questions

1
MediumLongest Substring Without Repeating Charactersβœ“ Our Solution
100
Hash TableStringSliding Window
2
EasyFind Followers Countβœ“ Our Solution
95
Database
3
EasyMinimum Changes To Make Alternating Binary Stringβœ“ Our Solution
95
String
4
MediumBasic Calculator IIβœ“ Our Solution
93
MathStringStack
5
MediumMerge Intervalsβœ“ Our Solution
90
ArraySorting
6
MediumNumber of Islandsβœ“ Our Solution
90
ArrayDepth-First SearchBreadth-First SearchUnion Find+1
7
MediumDesign Circular Queueβœ“ Our Solution
86
ArrayLinked ListDesignQueue
8
MediumBuilding H2Oβœ“ Our Solution
86
Concurrency
9
MediumLetter Combinations of a Phone Numberβœ“ Our Solution
82
Hash TableStringBacktracking
10
EasyValid Parenthesesβœ“ Our Solution
82
StringStack
11
MediumTop K Frequent Elementsβœ“ Our Solution
82
ArrayHash TableDivide and ConquerSorting+4
12
MediumContainer With Most Waterβœ“ Our Solution
78
ArrayTwo PointersGreedy
13
MediumLRU Cacheβœ“ Our Solution
78
Hash TableLinked ListDesignDoubly-Linked List
14
EasyBest Time to Buy and Sell Stockβœ“ Our Solution
78
ArrayDynamic Programming
15
HardReverse Nodes in k-Groupβœ“ Our Solution
72
Linked ListRecursion
16
EasyMaximum Number of Balloonsβœ“ Our Solution
72
Hash TableStringCounting
17
EasyMove Zeroesβœ“ Our Solution
72
ArrayTwo Pointers
18
MediumSubarray Sum Equals Kβœ“ Our Solution
72
ArrayHash TablePrefix Sum
19
EasyDecode the Messageβœ“ Our Solution
72
Hash TableString
20
72
ArrayTwo PointersSorting
21
EasyValid Anagramβœ“ Our Solution
64
Hash TableStringSorting
22
MediumReorganize Stringβœ“ Our Solution
64
Hash TableStringGreedySorting+2
23
MediumMax Area of Islandβœ“ Our Solution
64
ArrayDepth-First SearchBreadth-First SearchUnion Find+1
24
MediumMaximum Subarrayβœ“ Our Solution
64
ArrayDivide and ConquerDynamic Programming
25
MediumFlatten Nested List Iteratorβœ“ Our Solution
54
StackTreeDepth-First SearchDesign+2
26
EasyFind Winner on a Tic Tac Toe Gameβœ“ Our Solution
54
ArrayHash TableMatrixSimulation
27
HardTrapping Rain Waterβœ“ Our Solution
54
ArrayTwo PointersDynamic ProgrammingStack+1
28
HardBasic Calculatorβœ“ Our Solution
54
MathStringStackRecursion
29
HardFirst Missing Positiveβœ“ Our Solution
54
ArrayHash Table
30
MediumRepeated DNA Sequencesβœ“ Our Solution
54
Hash TableStringBit ManipulationSliding Window+2
31
EasyMoving Average from Data Stream
54
ArrayDesignQueueData Stream
32
MediumGroup Anagramsβœ“ Our Solution
54
ArrayHash TableStringSorting
33
MediumLongest Palindromic Substringβœ“ Our Solution
54
Two PointersStringDynamic Programming
34
MediumSimplify Pathβœ“ Our Solution
54
StringStack
35
EasyLargest Perimeter Triangleβœ“ Our Solution
54
ArrayMathGreedySorting
36
EasyMissing Numberβœ“ Our Solution
54
ArrayHash TableMathBinary Search+2
37
MediumConstruct Binary Tree from Preorder and Inorder Traversalβœ“ Our Solution
54
ArrayHash TableDivide and ConquerTree+1
38
EasyIs Subsequenceβœ“ Our Solution
54
Two PointersStringDynamic Programming
39
MediumCombination Sum IIβœ“ Our Solution
54
ArrayBacktracking
40
MediumFind Minimum in Rotated Sorted Arrayβœ“ Our Solution
54
ArrayBinary Search
41
MediumDesign Bounded Blocking Queue
54
Concurrency
42
MediumHouse Robberβœ“ Our Solution
54
ArrayDynamic Programming
43
EasyReverse Linked Listβœ“ Our Solution
54
Linked ListRecursion
44
MediumCourse Schedule IIβœ“ Our Solution
54
Depth-First SearchBreadth-First SearchGraphTopological Sort
45
HardSerialize and Deserialize Binary Treeβœ“ Our Solution
54
StringTreeDepth-First SearchBreadth-First Search+2
46
MediumDesign Tic-Tac-Toe
54
ArrayHash TableDesignMatrix+1