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Arrays Technical Interview Questions

Arrays
Reverse Array
Pair Sum Equals Number
Floor and Ceil
Largest Sum Subarray
Missing Number
Odd Occuring Number
Sort by Frequency
First and Second Smallest
Majority Element
Difference between elements
Arrange Even and Odd
Closest Sum Elements
Distinct Elements
First Repeating Number
Common Elements in Arrays
Smallest Missing Number
Max Adjacent Sum
Find Occurrences of Number
Rotate Image
Distance Between Numbers
Pair with given difference
Product Array Puzzle
Replace Elements
First Repeating Element
Move Zeroes to End
Pythagorean Triplets
Maximum Average Subarray
Subarray Sum Equal to X
Leaders in Array
Largest Pair Sum
Segregate 0s 1s and 2s
Find Duplicates
Consecutive Elements Check
Triplet with given Sum
Binary Search in Sorted Array
Fixed point in sorted array
Reorder Elements by Indexes
Merging two sorted arrays
Find next greater number
Reorder array using given indexes
Count of triplets with sum less than given value
Merge two sorted arrays
Subarray and Subsequence
Rearrange array maximum minimum form
Find the lost element from a duplicated array
Count minimum steps to get the given array
Maximum element in an array which is increasing and then decreasing
Minimum number of jumps to reach the end of an array
Subarray with given sum
Length of Longest Increasing Subsequence
Smallest positive number missing unsorted array
The Celebrity Problem
Sorted subsequence of size 3
Partition Problem
Find pair with given difference
Maximum length of chain pairs
Four elements that sum to given
Maximum circular subarray sum
Count possible triangles
Longest Increasing Subsequence
Petrol Bunks Tour
Tug of War
Counting Sort
Maximum Repeating Number
Positive Negative Arrangement
Find a Peak element
Elements More Than n/k
Max Product Subsequence
Longest Bitonic subarray in an array
Number of smaller elements on right side
Implement two stacks in an array
Maximum sum increasing subsequence
Find the two numbers with odd occurrences in an unsorted array
Largest subarray with equal number of 0's and 1's
Maximum product subarray
Replace every element with the greatest on the right side in an array
Sorting a k sorted array
Find the row with maximum number of 1's
Shuffle a given array
Iterative Implementation of quick sort
Arrange given numbers to form the biggest number
Pancake sorting
Pancake sorting Problem
Maximum Subarray Sum using Divide and Conquer
Merge Overlapping Intervals
Stock Buy Sell to Maximize Profit
Sort Elements by frequency
Print all possible combinations of r elements in a given array of size n
Monotonically increasing function
Minimum element in a sorted and rotated array
Merge k Sorted Arrays
Flip Zeroes for Consecutive 1's
Least Average Subarray
Longest span with same sum in two binary arrays
Form minimum number from given sequence of D's and I's
Number of strictly increasing subarrays
Minimum difference between any two elements in an array
Number of pairs with given sum
Make Array Palindrome
Dynamic Programming, Longest Bitonic SubSequence

Array Interview Questions

Arrays interview questions are the favourite topic of Microsoft, Amazon, Google, VMWare, etc. We are providing list of questions on Arrays which will help you to challange the interviewrs. Below are the questions on array data structure. Array algorithm questions are first choice of interviewers. Below are important array questions for technical interviews.


Reverse Array

Pair Sum Equals Number

Floor and Ceil

Largest Sum Subarray

Missing Number

Odd Occuring Number

Sort by Frequency

First and Second Smallest

Majority Element

Difference between elements

Arrange Even and Odd

Closest Sum Elements

Distinct Elements

First Repeating Number

Common Elements in Arrays

Smallest Missing Number

Max Adjacent Sum

Find Occurrences of Number

Rotate Image

Distance Between Numbers

Pair with given difference

Product Array Puzzle

Replace Elements

First Repeating Element

Move Zeroes to End

Pythagorean Triplets

Maximum Average Subarray

Subarray Sum Equal to X 

Leaders in Array

Largest Pair Sum

Segregate 0s 1s and 2s

Find Duplicates

Consecutive Elements Check

Triplet with given Sum

Binary Search in Sorted Array

Fixed point in sorted array

Reorder Elements by Indexes

Merging two sorted arrays

Find next greater number 

Reorder array using given indexes

Count of triplets with sum less than given value

Merge two sorted arrays 

Subarray and Subsequence 

Rearrange array maximum minimum form

Find the lost element from a duplicated array

Count minimum steps to get the given array

Maximum element in an array which is increasing and then decreasing

Minimum number of jumps to reach the end of an array

Subarray with given sum

Length of Longest Increasing Subsequence

Smallest positive number missing unsorted array

The Celebrity Problem

Sorted subsequence of size 3

Partition Problem

Find pair with given difference

Maximum length of chain pairs

Four elements that sum to given

Maximum circular subarray sum

Count possible triangles

Longest Increasing Subsequence

Petrol Bunks Tour

Tug of War

Counting Sort

Maximum Repeating Number

Positive Negative Arrangement

Find a Peak element

Elements More Than n/k

Max Product Subsequence

Longest Bitonic subarray in an array

Number of smaller elements on right side

Implement two stacks in an array

Maximum sum increasing subsequence

Find the two numbers with odd occurrences in an unsorted array

Largest subarray with equal number of 0's and 1's

Maximum product subarray

Replace every element with the greatest on the right side in an array

Sorting a k sorted array

Find the row with maximum number of 1's

Shuffle a given array

Iterative Implementation of quick sort

Arrange given numbers to form the biggest number

Pancake sorting

Pancake sorting Problem

Maximum Subarray Sum using Divide and Conquer

Merge Overlapping Intervals

Stock Buy Sell to Maximize Profit

Sort Elements by frequency

Print all possible combinations of r elements in a given array of size n

Monotonically increasing function

Minimum element in a sorted and rotated array

Merge k Sorted Arrays

Flip Zeroes for Consecutive 1's

Least Average Subarray

Longest span with same sum in two binary arrays

Form minimum number from given sequence of D's and I's

Number of strictly increasing subarrays

Minimum difference between any two elements in an array

Number of pairs with given sum

Make Array Palindrome

Dynamic Programming, Longest Bitonic SubSequence

These are the good collection of array questions for technical interviews. Array algorithm questions are commonly asked questions for technical interviews.


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