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Array Basics

A collection of 17 posts

Deletion at Xth Position

Continuing from insertion, deletion is another essential operation in problem-solving that helps us remove irrelevant, outdated, or specific elements from a dataset while preserving its structure. Whether it's removing a completed task from a to-do list, eliminating a player from a game leaderboard, or deleting an entry from

Insertion at Xth Position Solution

Insertion at Xth Position Solution in C++/Java/Python/JS

In problem-solving, inserting an element at a specific position in a dataset is a fundamental operation that helps us manage dynamic data efficiently. Whether we are updating a list of tasks, inserting a new player into a ranking board, or adding an item to a specific location in memory, this

Find 2nd Minimum in Array

Once we've determined the minimum value in an array, the next logical step in certain situations is to find the second smallest value. This might represent the next lowest cost, a close competitor's score, or the second least critical threshold. Let’s see how to approach

Find 2nd Maximum in Array

After identifying the maximum value in an array, the next step in some scenarios is to find the second-highest value. This could represent the runner-up score or the next best option in a dataset. Let’s explore how to determine the second maximum efficiently, ensuring we account for all edge

Find Minimum Element in Array

In problem-solving, identifying the least or smallest value in a dataset is a crucial skill, as it often represents the baseline, minimum requirement, or the most critical limiting factor. For instance, finding the minimum element in an array helps us determine the lowest score, minimum cost, or the least significant

Find Maximum Element in Array

In various problem-solving scenarios, we often need to identify key characteristics of a dataset, such as determining the most significant value. For instance, finding the maximum element in an array is a fundamental task that helps us locate the highest point of interest, whether it's the largest number,

Sum of Triplet Equal to Target in Array

To extend the approach we've used for finding two elements that sum up to a target value, we can apply the same logic to find three elements that sum up to a target value. Given an array of integers, we need to check if there exist three distinct

Sum of Pair Equal to Target in Array

In the context of analyzing data within arrays, it's often necessary to determine whether two or three different elements in the array sum up to a specific target value. This problem is a common one in programming, especially in scenarios involving searching for pairs or triplets of numbers

Find Count of Unique and Duplicate Elements in an Array

Find Count of Unique and Duplicate Elements in an Array Solution in C++/Java/Python/JS

In the process of analyzing data within arrays, it's often crucial to differentiate between unique elements and duplicate elements. This can provide insights into the diversity of data, help detect redundancies, or even optimize storage by identifying repeated values. Understanding the frequency of unique versus duplicate elements is

Check if an Array is Sorted

As we continue our progress in this article, as arrays which is a fundamental data structure representing a collection of similar elements—it's essential to consider the array's organization, particularly whether it is sorted or unsorted. The state of sorting is a crucial property, as it

Find Number of Times Target Appear in Array

When working with arrays, a common task is to count how many times a particular element appears in the array. This is often needed in scenarios where we want to analyze the frequency of specific values or simply check the occurrence of a target element. Let’s explore how to

Find Sum and Product of All the Elements in an Array Solution

Find Sum and Product of All the Elements in an Array Solution in C++/Java/Python/JS

As we progress in this discussion, we often need to perform operations such as finding the collective sum, product, or any other operation such as (GCD, or applying bitwise operations) on the entire array. Let’s now explore how these tasks can be accomplished. Since sum and product are the

Separate Odd and Even Elements of an Array

Separate Odd and Even Elements of an Array Solution in C++/Java/Python/JS

When working with arrays, there are situations where we may need to separate elements based on specific criteria, one of the most common of such criteria is whether they are odd or even. In such cases, it's common to create two separate arrays: one for odd elements and

Create Duplicate of an Array

When working with arrays, there are situations where we may need to perform operations or modifications on an array while preserving the original data. In such cases, it's common to create a copy of the original array. By doing this, any modifications or operations can be performed on

Print Alternate Elements of an Array Solution

Print Alternate Elements of an Array Solution in C++/Java/Python/JS

In certain scenarios, it's necessary to access elements at specific intervals, such as accessing only alternate elements or focusing on elements at odd or even indexes. Let's explore how this can be done Write a program that takes an array as input and prints the alternate

reverse-array-print

Print Array in Reverse Order Solution in C++/Java/Python/JS

Now that we've seen how to traverse an array in a forward manner, there are many situations where we need to traverse and perform operations on an array in reverse order as well. Let's explore how this is done with the below problem. Write a program

Index of the Given Array Solution

Print Each Element and its Index in an Array Solution in C++/Java/Python/JS

Write a program that takes an array as input and prints each element of the array along with its corresponding index. Example: Input: nums = [1, 2, 3, 5, 6] Output: Value at Index 0 is 1 Value at Index 1 is 2 Value at Index 2 is 3 Value at