Pair in C++ Standard Template Library (STL)

In this tutorial, we will be discussing a program to understand pair in C++ Standard Template Library.

Pair is a container defined in the utility header that contains two values. It is used to combine two values and associate them even if they are of different types.

Example

 Live Demo

#include <iostream> #include <utility> using namespace std; int main(){    //initializing a pair    pair <int, char> PAIR1 ;    PAIR1.first = 100;    PAIR1.second = 'G' ;    cout << PAIR1.first << " " ;    cout << PAIR1.second << endl ;    return 0; }

Output

100 G