maths-mean

34 posts

Last Updated: 02 May 2026

Descriptive statistics is a branch of statistics that focuses on summarizing and organizing data so it can be easily understood and interpreted. It helps in describing the...read more

Count of Unique elements after inserting average of MEX and Array Max K times

Last Updated: 23 July 2025

Given an array A[] of N non-negative integers and an integer K. Each time,you can do the following two operationsFind Average of MAX and MEX(rounded up to closest greater ...read more

Geeks Premier League

Geeks-Premier-League-2022

Generate a Matrix with mean of each subarray of each row as an integer

Last Updated: 29 March 2022

Given two integers M and N, the task is to generate an MxN matrix having elements in range [1, MxN] such that the average of any subarray of any row is an integer. If it i...read more

Geeks-Premier-League-2022

DSA

subarray

Permutation and Combination

maths-mean

Count of pairs that can be removed from Array without changing the Mean

Last Updated: 23 July 2025

Given an array arr[] of size N, the task is to find the number of pairs of the array upon removing which the mean (i.e. the average of all elements) of the array remains u...read more

Geeks-Premier-League-2022

DSA

Arrays

maths-mean

Program to find simple moving average | Set-2

Last Updated: 23 July 2025

Simple Moving Average is the average obtained from the data for some t period of time . In normal mean, its value get changed with the changing data but in this type of me...read more

Replace all elements of given Array with average of previous K and next K elements

Last Updated: 23 July 2025

Given an array arr[] containing N positive integers and an integer K. The task is to replace every array element with the average of previous K and next K elements. Also, ...read more

Convert given Matrix into a Symmetric Matrix by replacing elements at (i, j) and (j, i) with their mean

Last Updated: 23 July 2025

Given an integer N and a N x N matrix, the task is to convert the given matrix into a symmetric matrix by replacing (i, j)th and (j, i)th element with their arithmetic mea...read more

Find mean of K adjacent elements on each sides for each Array element

Last Updated: 23 July 2025

Given a circular array arr[] of N numbers, and an integer K. The task is to print the average for 2K+1 numbers for each elements (K from left, K from right, and the elemen...read more

Rearrange given Array by replacing every element with the element located at mean of adjacent elements

Last Updated: 06 June 2022

Given an array arr[]. The array contains numbers from 0 to N-1 only, where N is the size of arr[]. The task is to modify the array in such that for each i from 0≤iN, arr[i...read more

Count of triplets that can be removed without changing Mean of given Array

Last Updated: 23 July 2025

Given an array arr[], the task is to calculate the count of possible triplets such that they can be removed from the array without changing the arithmetic mean of the arra...read more

Find an Array such that mean of this and given Array together equals to K

Last Updated: 23 July 2025

Given two integers N, K, and an array arr[] consisting of positive integers. The task is to find any possible array of size N such that the mean of arr[] and the array to ...read more

Find K missing numbers from given Array in range [1, M] such that total average is X

Last Updated: 15 December 2021

Given an array arr[] of integers of size N where each element can be in the range [1, M], and two integers X and K. The task is to find K possible numbers in range [1, M] ...read more

DSA

maths-mean

Check if given array can be rearranged such that mean is equal to median

Last Updated: 23 July 2025

Given sorted float array arr[]. Check if arr[] can be rearranged such that its mean is equal to its median.Examples:Input: arr[] = {1.0, 3.0, 6.0, 9.0, 12.0, 32.0}Output: ...read more

Mean of minimum of all possible K-size subsets from first N natural numbers

Last Updated: 23 July 2025

Given two positive integers N and K, the task is to find the mean of the minimum of all possible subsets of size K from the first N natural numbers.Examples:Input: N = 3, ...read more

Rearrange given Array such that each elements is not equal to mean of adjacent elements

Last Updated: 23 July 2025

Given an array arr consisting of N unique integers, the task is to rearrange the array such that element at index i of array should not be mean of adjacent elements (i.e.,...read more

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