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Top 50 Mobile Engineer Interview Questions

The 50 most important questions to prepare for Mobile Engineer interviews. Questions from real interview reports rank first. Updated daily.

50questions
~21htotal time
2,529companies covered
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1
RecursionStart here. 16 questions · ~400 min
Linked List ReversalEasy
Practice
Recently asked

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysA S S E M B L E DCrescent Electric SupplyCenterWell
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2
Hash Tables17 questions · ~425 min
Two Sum with TargetEasy
Practice
Recently asked

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsiCapitalPaycomBlend360
Longest Substring Without RepeatsMedium
Practice
Recently asked

Find the longest substring with all unique characters using a sliding window.

Hash TablesStringsTwo PointersDeepInstinctTaboolaEDF Renewables
Two Sum in Unsorted ArrayEasy
Practice
Recently asked

Find two indices in an unsorted array whose values sum to a target using a hash table in O(n) time.

Hash TablesArraysStringsAmazonUberUniversity of Utah
Detect Cycle in Linked ListEasy
Practice
Recently asked

Use Floyd’s two-pointer algorithm to determine whether a singly linked list contains a cycle.

Hash TablesLinked ListsTwo PointersAMD Construction GroupInformaticaAkamai
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3
Arrays7 questions · ~175 min
Merge Two Sorted ArraysEasy
Practice
Recently asked

Merge two sorted arrays into one sorted array using a two-pointer linear scan.

ArraysSortingTwo PointersDropboxTetraScienceBooking
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4
More topics10 questions · ~250 min
Reverse a String in PythonEasy
Practice
Recently asked

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonCNAAct DigitalLos Alamos National Laboratory
Maximum Sum Contiguous SubarrayEasy
Practice
Recently asked

Use Kadane's algorithm to find the contiguous subarray with the largest sum in linear time.

Dynamic ProgrammingArraysGreedyMetaPublicis GroupeSmbc Global Foundation
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