Top 50 Arrays Interview Questions
The most frequently asked Arrays questions across all roles and companies, ranked by real interview frequency. Updated daily.
Reverse a singly linked list in-place using iterative pointer manipulation.
A S S E M B L E D
Crescent Electric Supply
CenterWellImplement binary search to find a target value in a sorted array in O(log n) time.
HHAeXchange
EDF Renewables
SRS ConsultingUse a hash map to find two array elements that sum to a target in O(n) time.
iCapital
Paycom
Blend360Use a hash map to find two array elements that sum to a target in O(n) time.
NeoDoctoCCredibleFind two indices in an array whose values add up to a target using a hash map.
Converseon
Earnest Research
EtsySign up to see every question
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Merge two sorted arrays into one sorted array using a two-pointer linear scan.
Dropbox
TetraScience
BookingFormat a concise response listing programming languages and the reason for comfort with each.
Foundation Medicine
Franklin EnergyCenterWellImplement a linear array-sum solution and explain why its time complexity is O(n).
Arch Capital
Capella Space
Zynga