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How to Create a Vector of Vectors of Pairs in C++?

Last Updated: 06 February 2024

In C++ STL, we can nest different containers into each other at any number of levels. On such container is the Vector of Vectors of Pairs i.e. 2D vector of pairs.In this a...read more

How to Iterate Over a Set of Pairs in C++?

Last Updated: 02 February 2024

In C++, a set is a container that stores unique values in some specified order while pairs are data structures that store key-value pairs. In this article, we will look at...read more

How to Iterate Over a Vector of Pairs in C++?

Last Updated: 02 February 2024

In C++, vectors are dynamic arrays that allow users to store data in a contiguous memory location while pairs are data structures that allow the users to store two heterog...read more

Group Vector of Pair Elements in Multimap

Last Updated: 01 February 2024

Multimap stores key-value pairs and for the same key, we can have more than one value i.e. multiple values for a single key. We can use this property of multimap to group ...read more

How to Insert Pairs into a Map in C++?

Last Updated: 29 January 2024

In C++, maps are STL containers that store key-value pairs and maintain the element's order according to their keys. Pairs also store the data as key values. In this artic...read more

How to Sort a List of Pairs in C++?

Last Updated: 25 January 2024

In C++, the pair container allows the users to store two different types of objects as a single unit. We can store the pairs in a list if we want to store multiple pairs i...read more

How to Convert Map to a Vector of Pairs in C++?

Last Updated: 25 January 2024

In C++, map containers allow us to store the data in key-value pairs. There might be some cases where you want to convert an entire map into a vector of pairs. In this art...read more

Count Pairs with equal elements and Divisible Index Sum

Last Updated: 09 December 2023

Given an array arr[] of length N and an integer k. You have to return the count of all the pairs (i, j) such that:arr[i] == arr[j]ij(i+j) is divisible by kExamples:Input: ...read more

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Count ways to choose Triplets of Pairs such that either first or second values are distinct

Last Updated: 23 January 2023

Given an array of pairs arr[] of size N (N ? 3) where each element of pair is at most N and each pair is unique, the task is to determine the number of ways to select trip...read more

Check if every pair in Array B follows the same relation as their corresponding values in A

Last Updated: 02 May 2022

Given two Arrays A[] and B[] each of size N, the task is to check if the given arrays are valid or not, based on the following conditions:Every element in A at index i, wi...read more

Sorting Vector of Pairs by 1st element in ascending and 2nd element in descending

Last Updated: 20 February 2023

A pair is a container that stores two values mapped to each other, and a vector containing multiple numbers of such pairs is called a vector of pairs.While solving problem...read more

Deque of Pairs in C++ with Examples

Last Updated: 30 December 2021

What is a deque?In C++, the deque is a sequence container and it is also known by the name, double-ended queue. As the name implies, a deque allows insertion and deletion ...read more

Multimap of pairs in C++ with Examples

Last Updated: 27 December 2021

What is a multimap?In C++, a multimap is an associative container that is used to store elements in a mapped fashion. Internally, a multimap is implemented as a red-black ...read more

Sorting 2D Vector of Pairs in C++

Last Updated: 20 February 2023

A 2D vector also known as vector of vectors is a vector in which each element is a vector on its own. In other words, It is a matrix implemented with the help of vectors.W...read more

2D Vector of Pairs in C++ with Examples

Last Updated: 28 July 2022

What is Vector?In C++, a vector is similar to dynamic arrays with the ability to resize itself automatically. Vector elements are stored in contiguous memory locations so ...read more

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