GeeksforGeeks

Aggregate Multimap Values with Same Key and Store in Map in C++

Last Updated: 20 March 2024

In C++, a multimap is an associative container that contains a sorted list of key-value pairs, while the same key can contain multiple values. It is a version of a map tha...read more

How to Find Symmetric Difference of Two Multimaps in C++?

Last Updated: 12 March 2024

In C++, a multimap is a container that contains a sorted list of key-value pairs and there can be multiple entries having the same key. The symmetric difference between tw...read more

How to Create a Unordered Multimap of Tuples in C++?

Last Updated: 12 March 2024

In C++, an unordered multimap container stores key-value pairs in no particular order. Unlike a map, an unordered multimap allows multiple values to be associated with a s...read more

How to Initialize Multimap with Default Values in C++?

Last Updated: 24 April 2025

In C++, a multimap is a container provided by the STL library that stores key-value pairs in an ordered manner. Unlike a map, a multimap allows multiple values to be assoc...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 Multimap of Arrays in C++?

Last Updated: 28 February 2024

In C++, a multimap is similar to amapwith the addition that multiple elements can have the same keys. Also, it is NOT required that the key-value and mapped value pair hav...read more

How to Create a Multimap of Vectors in C++?

Last Updated: 27 February 2024

In C++, a multimap is similar to amapwith the addition that multiple elements can have the same keys. Also, it is not required that the key-value and mapped value pair hav...read more

How to Implement Priority Queue Using Multimap in C++?

Last Updated: 16 February 2024

A priority queue is a type of queue where elements are removed from the queue based on some priority. The element with the highest (or lowest priority depending on the typ...read more

How to Insert a Pair in Multimap in C++?

Last Updated: 09 February 2024

In C++, we have multimap which is used to store key-value pairs like a map but multimap can have multiple values for the same key. In this article, we will learn how to in...read more

Search a Multimap in Reverse Order in C++

Last Updated: 08 February 2024

In C++, multimap can store multiple values for a single key, and the elements are stored in an order of lowest to highest key value. In this article, we will discuss how t...read more

How to Delete a Pair from a Multimap in C++?

Last Updated: 06 February 2024

In C++, multimap stores key-value pairs and for the same key there can be multiple values in a multimap. In this article, we will learn how to delete a pair from a multima...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 Can I Get All the Unique Keys in a Multimap?

Last Updated: 29 January 2024

In C++, multimap stores key-value pairs like map but they allow users to store duplicate keys. It means that the same key can occur multiple times. In this article, we wil...read more

Multimap of tuples 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

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