cpp-unordered_set Archives

unordered set of Vectors in C++ with Examples

Last Updated: 19 December 2021

What is an unordered set?In C++, an unordered set is an unordered container that can hold a number of unique elements. Unlike a set, elements in an unordered set are not a...read more

Different Ways to Initialize an unordered_set in C++

Last Updated: 17 April 2023

An unordered_set is an associated container available in the C++ Standard Template Library(STL) that is used for unique elements without any specific ordering, it internal...read more

C++

STL

cpp-unordered_set

How to Store Duplicate Elements in Ordered Set in C++?

Last Updated: 03 December 2024

The ordered set is a policy-based data structure in GNU C++ that contains unique elements in sorted order just like set. In this article, we will learn how to store duplic...read more

C++

STL

cpp-unordered_set

Count of distinct pair sum in given Array

Last Updated: 01 August 2022

Given an array arr[] of size N, the task is to find the total number of unique pair sums possible from the array elements.Examples:Input: arr[] = {6, 1, 4, 3}Output: 5Expl...read more

max_bucket_count() Function in Unordered Set C++ STL

Last Updated: 27 November 2022

Prerequisite: unordered_set() in C++The max_bucket_count() is the built-in function defined in C++ STL. This function returns the maximum number of buckets that the Unorde...read more

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C++

Picked

Technical Scripter 2022

STL

cpp-unordered_set

C++ Program to Print all triplets in sorted array that form AP

Last Updated: 18 August 2023

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples : Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 3...read more

C++

cpp-unordered_set

arithmetic progression

Java Program to Print all triplets in sorted array that form AP

Last Updated: 19 January 2022

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples : Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 3...read more

Java

cpp-unordered_set

arithmetic progression

Python3 Program to Print all triplets in sorted array that form AP

Last Updated: 05 September 2024

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples :Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 35,...read more

Python

cpp-unordered_set

arithmetic progression

PHP Program to Print all triplets in sorted array that form AP

Last Updated: 22 July 2024

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples :Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 35,...read more

arithmetic progression

Javascript Program for Print all triplets in sorted array that form AP

Last Updated: 16 September 2024

Given a sorted array of distinct positive integers, print all triplets that form AP (or Arithmetic Progression)Examples :Input : arr[] = { 2, 6, 9, 12, 17, 22, 31, 32, 35,...read more

arithmetic progression

C++ Program for Number of unique triplets whose XOR is zero

Last Updated: 27 August 2022

Given N numbers with no duplicates, count the number of unique triplets (ai, aj, ak) such that their XOR is 0. A triplet is said to be unique if all of the three numbers i...read more

C++

Bitwise-XOR

cpp-unordered_set

Find product of nodes whose weights is catalan number in a Linked list

Last Updated: 04 December 2023

Given a linked list with weights, the task is to find the product of nodes whose weights are Catalan numbers.Examples:Input: 3(1) - 7 (4) - 5 (2) - 12 (5) - 14 (3) - NULLO...read more

Linked List

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DSA

Data Structures-Linked List

cpp-unordered_set

Check if array contains duplicates

Last Updated: 29 August 2024

Given an integer array arr[], check if the array contains any duplicate value.Examples:Input: arr[] = {4, 5, 6, 4}Output: trueExplanation: 4 is the duplicate value.Input: ...read more

How to Create Deque of Unordered_Set in C++?

Last Updated: 27 March 2024

In C++, a deque (double-ended queue) is a container that allows insertion and removal of elements from both ends whereas an unordered set is a container that stores unique...read more

What is the difference between Set vs Hashset in C++?

Last Updated: 23 May 2024

In C++, both set and HashSet(also called unordered_set) are used to store elements but they have different properties and use cases. In this article, we will learn the key...read more