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Map In C++ Geeksforgeeks

Written by Bon Juve Jan 04, 2023 · 3 min read
Map In C++ Geeksforgeeks

std::map<key_type, value_type> map_name;

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C++ is a popular programming language used for various applications. One of the most useful features of C++ is its map data structure. A map is an associative container that stores keys and values. In this article, we will discuss the map in C++ and how to use it in your programs. We will also cover GeeksforGeeks, a popular online platform for programmers, and how it can help you learn more about C++ and other programming languages.

What is a map in C++?

A map is a data structure that stores key-value pairs. It is also known as an associative array, dictionary, or hash table. The keys in a map are unique and are used to access their corresponding values. Maps are implemented using a tree-based data structure that allows for efficient lookup, insertion, and deletion operations.

How to use a map in C++?

To use a map in your C++ program, you first need to include the header file. Then, you can declare a map object using the following syntax:

std::map map_name;

The key_type and value_type can be any C++ data type, such as int, float, string, etc. To insert a key-value pair into the map, you can use the insert() function:

map_name.insert(std::make_pair(key, value));

To access a value in the map, you can use the [] operator:

value = map_name[key];


GeeksforGeeks is an online platform for programmers to learn and practice coding. It offers a wide range of tutorials, articles, and coding challenges for various programming languages, including C++. GeeksforGeeks has a dedicated section for C++ tutorials, which covers topics such as data structures, algorithms, and object-oriented programming.

How can GeeksforGeeks help you learn C++?

If you are new to C++ or want to improve your programming skills, GeeksforGeeks can be a great resource. The C++ tutorials on GeeksforGeeks are well-structured and cover all the essential topics. You can start with the basics, such as variables, operators, and control structures, and then move on to more advanced topics, such as pointers, arrays, and functions.

What are the benefits of learning C++?

C++ is a powerful programming language that is widely used in various industries, such as gaming, finance, and software development. Learning C++ can help you improve your problem-solving skills, as well as your understanding of computer science concepts such as memory management, algorithms, and data structures. C++ is also a popular language for competitive programming, which can help you prepare for coding interviews and contests.


In this article, we have discussed the map data structure in C++ and how to use it in your programs. We have also covered GeeksforGeeks, a popular online platform for learning C++ and other programming languages. By learning C++ and using the map data structure, you can improve your programming skills and prepare for a career in software development.
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