C

Capgemini

25 questions tracked25 with solutions
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Frequency scoreSorted highest β†’ lowest frequencyβœ“ Our Solution = we have a detailed walkthrough

Showing 25 of 25 questions

1
100
ArrayHash Table
2
EasyNumber of Unique Subjects Taught by Each Teacherβœ“ Our Solution
96
Database
3
EasyReverse Degree of a Stringβœ“ Our Solution
96
StringSimulation
4
EasyRemove Duplicates from Sorted Arrayβœ“ Our Solution
84
ArrayTwo Pointers
5
EasyCount Elements With Maximum Frequencyβœ“ Our Solution
79
ArrayHash TableCounting
6
EasyBest Time to Buy and Sell Stockβœ“ Our Solution
74
ArrayDynamic Programming
7
MediumAdd Two Numbersβœ“ Our Solution
67
Linked ListMathRecursion
8
EasyLongest Common Prefixβœ“ Our Solution
67
StringTrie
9
EasyPalindrome Numberβœ“ Our Solution
67
Math
10
MediumRotate Arrayβœ“ Our Solution
58
ArrayMathTwo Pointers
11
MediumFind First and Last Position of Element in Sorted Arrayβœ“ Our Solution
58
ArrayBinary Search
12
MediumSubarray Sum Equals Kβœ“ Our Solution
58
ArrayHash TablePrefix Sum
13
EasyBalanced Binary Treeβœ“ Our Solution
58
TreeDepth-First SearchBinary Tree
14
MediumLongest Substring Without Repeating Charactersβœ“ Our Solution
58
Hash TableStringSliding Window
15
HardTrapping Rain Waterβœ“ Our Solution
58
ArrayTwo PointersDynamic ProgrammingStack+1
16
EasyMove Zeroesβœ“ Our Solution
58
ArrayTwo Pointers
17
EasyValid Anagramβœ“ Our Solution
58
Hash TableStringSorting
18
EasyFibonacci Numberβœ“ Our Solution
58
MathDynamic ProgrammingRecursionMemoization
19
MediumExchange Seatsβœ“ Our Solution
58
Database
20
HardMedian of Two Sorted Arraysβœ“ Our Solution
58
ArrayBinary SearchDivide and Conquer
21
MediumLongest Happy Stringβœ“ Our Solution
58
StringGreedyHeap (Priority Queue)
22
EasyValid Palindromeβœ“ Our Solution
58
Two PointersString
23
MediumReverse Words in a Stringβœ“ Our Solution
58
Two PointersString
24
MediumNth Highest Salaryβœ“ Our Solution
58
Database
25
MediumCoin Changeβœ“ Our Solution
58
ArrayDynamic ProgrammingBreadth-First Search