array-rearrange Archives

Rearrange sorted array such that all odd indices elements comes before all even indices element

Expert

Given a sorted array arr[] consisting of N positive integers, the task is to rearrange the array such that all the odd indices elements come… Read More

array-rearrange

Blogathon-2021

Arrays

Blogathon

Greedy

Mathematical

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

Hard

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… Read More

array-rearrange

maths-mean

Arrays

Mathematical

Modify array to a permutation of consecutive numbers of longest length by at most K insertions

Given an array arr[] of length N and an integer K, the task is to find the maximize the length of the array by appending… Read More

array-rearrange

Natural Numbers

permutation

Arrays

Greedy

Mathematical

Sorting

Longest remaining array of distinct elements possible after repeated removal of maximum and minimum elements of triplets

Medium

Given an array arr[] consisting of N integers, the task is to repeatedly select triplets and remove the maximum and minimum elements from the triplets… Read More

array-rearrange

cpp-unordered_map

frequency-counting

Arrays

Mathematical

Bitwise XOR of same indexed array elements after rearranging an array to make XOR of same indexed elements of two arrays equal

Given two arrays A[] and B[] consisting of N positive integers, the task is to the Bitwise XOR of same indexed array elements after rearranging… Read More

array-rearrange

Bitwise-XOR

Arrays

Bit Magic

Mathematical

Sorting

Check if an array can be sorted by swapping adjacent elements such that each element is swapped even number of times

Given an array arr[] consisting of N integers, the task is to check if the array can be sorted by swapping adjacent elements any number… Read More

array-rearrange

Arrays

Mathematical

Sorting

Rearrange the Array by shifting middle elements to start and end alternatively

Medium

Given an array, the task is to shift the middle element to the start and end of the array alternatively, till the middle element becomes… Read More

array-rearrange

Arrays

Combinatorial

Minimum number of decrements by 1 required to reduce all elements of a circular array to 0

Given an circular array arr[] consisting of N integers, the task is to find the minimum number of operations to reduce all elements of a… Read More

array-rearrange

circular-array

Arrays

Mathematical

Searching

Find whether it is possible to make array elements same using one external number | Set 2

Given an array arr[] consisting of N integers and following are the three operations that can be performed using any external number X: Add X… Read More

array-rearrange

Arrays

Mathematical

Sorting

Rearrange Array to find K using Binary Search algorithm without sorting

Given an array, arr[] of N distinct integers and an integer K, the task is to rearrange the given array in such a way, that… Read More

array-rearrange

Binary Search

Arrays

Searching

Maximize the smallest array element by incrementing all elements in a K-length subarray by 1 exactly M times

Medium

Given an array arr[] of size N, and integers M and K, the task is to find the maximum possible value of the smallest array… Read More

array-rearrange

Binary Search

subarray

Arrays

Mathematical

Searching

Check if elements of a Binary Matrix can be made alternating

Hard

Given a 2D array grid[][] of size N * M, consisting of the characters “1”, “0”, and “*”, where “*” denotes an empty space and… Read More

array-rearrange

Design Pattern

Mathematical

Matrix

Pattern Searching

Minimize moves required to make array elements equal by incrementing and decrementing pairs | Set 2

Expert

Given an array arr[] of size N, the task is to print the minimum number of moves required to make all array elements equal by… Read More

array-rearrange

Arrays

Greedy

Mathematical

Make all array elements equal by repeatedly replacing largest array element with the second smallest element

Medium

Given an array arr[] of size N, the task is to count the number of operations required to make all array elements equal by replacing the… Read More

array-rearrange

Arrays

Mathematical

Sorting

Modify array by making all array elements equal to 0 by subtracting K^i from an array element in every i-th step

Given an array arr[] of size N, the task is to check if it is possible to convert all array elements to 0s, by subtracting… Read More

array-rearrange

Arrays

Mathematical