GeeksforGeeks

Last Updated: 21 October 2024

In C++, std::pair is the data type that stores the data as keys and values. On the other hand, std::vector is an STL container that stores the collection of data of simila...read more

C++ Programs

How to Compare Two Pairs in C++?

Last Updated: 06 February 2024

In C++, a pair is used to combine together two values that may be of different data types. Pair provides a way to store two heterogeneous objects as a single unit. In this...read more

How to Find a Pair by Key in a Vector of Pairs in C++?

Last Updated: 06 February 2024

In C++, vectors are dynamic arrays that can automatically resize themselves according to the number of elements while pair allows the users to store two heterogeneous obje...read more

How to Capture Pairs in Lambda Expression in C++?

Last Updated: 07 February 2024

In C++, lambda expressions provide an easy way to define anonymous functions inline. They also allow these inline functions to capture some variables from the surrounding ...read more

How to Insert a Pair into an Unordered Map in C++?

Last Updated: 13 February 2024

In C++, STL provides the pair container which allows the user to store two objects that can be of the same or different type as a single unit. On the other hand, the Unord...read more

How Can I Sort a Multimap by Value in C++?

Last Updated: 20 October 2024

In C++, std::multimap stores elements as key-value pairs sorted by keys and there is no way to modify it to sort the elements by value but we can create a workaround to ac...read more

How to Create a Set of Pairs in C++?

Last Updated: 27 February 2024

In C++, sets are associative containers that store unique elements. On the other hand, pairs allow the users to store two data of different or the same type into a single ...read more

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

Last Updated: 29 February 2024

In C++, a vector of pairs can be converted to a map. This can be useful when you want to create a map from a vector of pairs, where each pair contains a key and a value. I...read more

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

Last Updated: 29 February 2024

In C++, a map can be converted to a set of pairs. This can be useful when you want to create a set of pairs from a map, where each pair contains a key and a value. In this...read more

make_pair() in C++ STL

Last Updated: 19 November 2024

In C++, make_pair() is a standard library function used to construct a key-value pair from the given arguments. The type of the pair constructed is deduced automatically f...read more

How to Insert into Multimap using make_pair in C++?

Last Updated: 06 March 2024

In C++, a multimap is a container that stores key-value pairs in an ordered manner. Unlike a map, a multimap allows multiple values to be associated with a single key. In ...read more

How to Create a Stack of Pairs in C++?

Last Updated: 06 March 2024

In C++, Stacks are a type of container adaptor with LIFO(Last In First Out) type of working, where a new element is added at one end (top) and an element is removed from t...read more

How to Access Elements of a Pair in C++?

Last Updated: 01 April 2024

In C++, a pair container is defined inutilityheader that can store two values that may be of different data types so as to store two heterogeneous objects as a single unit...read more

How to Add Element to Vector of Pairs in C++?

Last Updated: 14 May 2024

In C++, vectors are dynamic arrays that can grow and shrink in size whereas a pair is a container that can store two data elements or objects. A vector of pairs, therefore...read more

How to Sort a Vector of Pairs Based on the Second Element of the Pair in C++?

Last Updated: 23 July 2024

In C++, a vector of pairs is a common data structure used to store pairs of values. Sometimes, when dealing with pairs we need to sort such vectors of pairs based on a spe...read more