Arrays

6.3k+ posts

Top 50 Array Coding Problems for Interviews

Last Updated: 21 March 2024

Here is the collection of the Top 50 list of frequently asked interview questions on arrays. Problems in this Article are divided into three...read more

Arrays

Algorithms

Data Structures

GFG Sheets

DSA

What is Array?

Last Updated: 10 April 2024

Array is a linear data structure where all elements are arranged sequentially. It is a collection of elements of same data type stored at co...read more

Arrays

Interview Experiences

Data Structures

DSA

Experiences

Find Second largest element in an array

Last Updated: 08 April 2024

Given an array of integers, our task is to write a program that efficiently finds the second-largest element present in the array.Examples:I ...read more

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Linear Search Algorithm - Data Structure and Algorithms Tutorials

Last Updated: 18 March 2024

Linear Search is defined as a sequential search algorithm that starts at one end and goes through each element of a list until the desired e...read more

K’th Smallest/Largest Element in Unsorted Array

Last Updated: 29 October 2023

Given an array arr[] of size N and a number K, where K is smaller than the size of the array. Find the K'th smallest element in the given ar ...read more

Introduction and Array Implementation of Queue

Last Updated: 25 May 2023

Last Updated: 07 November 2023

Given a set of non-negative integers and a value sum, the task is to check if there is a subset of the given set whose sum is equal to the g...read more

Last Updated: 10 July 2023

Array: Arrays store elements in contiguous memory locations, resulting in easily calculable addresses for the elements stored and this allow...read more

Arrays

Linked List

DSA

Maximum and minimum of an array using minimum number of comparisons

Last Updated: 15 April 2024

Given an array of size N. The task is to find the maximum and the minimum element of the array using the minimum number of comparisons.Examp ...read more

Inversion count in Array using Merge Sort

Last Updated: 28 July 2023

Inversion Count for an array indicates - how far (or close) the array is from being sorted. If the array is already sorted, then the inversi...read more

Program for array left rotation by d positions.

Last Updated: 07 March 2024

Given an array of integers arr[] of size N and an integer, the task is to rotate the array elements to the left by d positions.Examples: I...read more

Array Reverse in C/C++/Java/Python/JavaScript

Last Updated: 13 April 2024

Array reverse or reverse a array means changing the position of each number of the given array to its opposite position from end, i.e. if a ...read more

Find the Missing Number

Last Updated: 13 April 2024

Given an array arr[] of size N-1 with integers in the range of [1, N], the task is to find the missing number from the first N integers.Note ...read more

limited-range-elements

DSA

Largest Sum Contiguous Subarray (Kadane's Algorithm)

Last Updated: 12 April 2024

Given an array arr[] of size N. The task is to find the sum of the contiguous subarray within a arr[] with the largest sum. Recommended P...read more

Check if pair with given Sum exists in Array (Two Sum)

Last Updated: 08 April 2024

Given an array A[] of n numbers and another number x, the task is to check whether or not there exist two elements in A[] whose sum is exact ...read more

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