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array-range-queries

376+ posts

Last Updated: 23 July 2025

The array range query problem can be defined as follows:Given an array of numbers, the array range query problem is to build a data structure that can efficiently answer q...read more

DSA

Arrays

array-range-queries

CSES Solutions – Static Range Sum Queries

Last Updated: 23 July 2025

Given an array arr[] of N integers, your task is to process Q queries of the form: what is the sum of values in range [a,b]?ExamplesInput: arr[] = {1, 3, 4, 8, 6, 1, 4, 2}...read more

Competitive Programming

array-range-queries

prefix-sum

CSES Problems

CSES Solutions - Nested Ranges Check

Last Updated: 10 July 2024

Given N ranges, the task is to determine for each range if it contains some other range and if some other range contains it. Range [a,b] contains range [c,d] if a ≤ c and ...read more

Competitive Programming

Picked

array-range-queries

CSES Problems

Segment Tree for Range Assignment and Range Sum Queries

Last Updated: 23 July 2025

Given an array of sizeNfilled with all 0s, the task is to answerQqueries, where the queries can be one of the two types:Type 1 (1, L, R, X):Assign value X to all elements ...read more

Geeks Premier League 2023

Segment Tree for Range Multiplication and Sum Queries

Last Updated: 23 July 2025

Given an array of size N filled with all 1s, the task is to answer Q queries, where the queries can be one of the two types: Type 1 (1, L, R, X): Multiply all elements on ...read more

Geeks Premier League 2023

Segment Trees for Competitive Programming

Last Updated: 23 July 2025

Segment Tree is one of the most important data structures used for solving problems based on range queries and updates. Problems based on Segment Trees are very common in ...read more

Competitive Programming

array-range-queries

Segment-Tree

Sum and Update Queries on 2D Matrix

Last Updated: 23 July 2025

Given a 2D matrix mat[][] of size NXN with all its elements initialized to 0, the task is to answer Q queries. Each query[i] can be one of the following types:Type 1 [1, x...read more

DSA

array-range-queries

Binary Indexed Tree

Find Maximum Difference Between any Two Pairs By Following Operations Optimally

Last Updated: 31 December 2023

Given an array X[] of length N along with A and B. You can apply below type of operations:Operation 1: Choose two different indices, delete elements at both indices and in...read more

DSA

array-range-queries

Algorithms-Greedy Algorithms

Greedy Algorithms

Java-Arrays

DSA-Blogs

Geeks Premier League 2023

Fastest Horse Query in a Race

Last Updated: 25 January 2024

Given ‘N’ horses running in ‘N’ different lanes numbered from 1 to ‘N’. You are given an array “FINISHTIME” containing ‘N’ integers where “FINISHTIME[i]” represents the ti...read more

QA - Placement Quizzes-Data Interpretation

Scala-Arrays

Volkswagen IT Services

Geeks Premier League 2023

Find Next Optimal Range in Array

Last Updated: 23 July 2025

Given an array ranges[][] of size N x 2, where for every i, range[i][0] is the start and range[i][1] is the end of the range. For every range, find the index of the Next O...read more

Geeks Premier League 2023

Find maximum difference between elements having a fixed index difference of K

Last Updated: 16 November 2023

Given an integer K and an unsorted array of integers arr[], find the maximum difference between elements in the array having a fixed index difference of K.Examples: Input:...read more

Minimum Possible Cost of Flight ticket required to reach the city D

Last Updated: 23 July 2025

Given two integers N, D and an array A[] of size N where A[i] represents the population of ith city. For any city i, there are two flights to city (i+1) and to city (i+3),...read more

Algorithms-Dynamic Programming

Print the sum of array after doing k queries on the array

Last Updated: 10 February 2023

Given an array, arr[] of size n. Calculate the sum of arr[] by performing k queries on arr[], such that we have to add an element given in array y[], on the basis of the b...read more

Technical Scripter 2022

DSA

array-range-queries

2D Range Minimum Query in O(1)

Last Updated: 23 July 2025

Given a matrix mat[][] of size N*M, the task is to find the minimum value in a submatrix of the array, defined by the top-left and bottom-right indices of the submatrix fo...read more

Picked

Technical Scripter 2022

DSA

array-range-queries

Find the final Array by updating given Ranges

Last Updated: 23 July 2025

Given an array arr[] consisting of N integers and an array Q[][3] consisting of M queries of the form [L, R, U], the task for each query is to xor every array element over...read more

Technical Scripter

Technical Scripter 2022

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