How to use pairs instead of structures in C++?

In C++, pairs can be used instead of structures to store two different types of data.

The steps to use a pair are as follows:

1. a service or tool that provides benefit or assistance

#include <utility>

1. Declare a pair variable and specify two pieces of data at initialization.

std::pair<int, double> myPair(10, 3.14);

This will create a pair object, where the first element is an integer of 10 and the second element is a double of 3.14.

1. Utilize data from pairs.

You can use .first and .second to access the first and second elements in a pair.

int firstElement = myPair.first;
double secondElement = myPair.second;

In the above example, the firstElement will be assigned the value of 10, and the secondElement will be assigned the value of 3.14.

1. The pair object’s value can be set to a new value using the assignment operator.

myPair = std::make_pair(20, 4.56);

This will set the first element of the pair object to 20 and the second element to 4.56.

Note: pair is a template class that can be used with any type of data as its elements.