#include <iostream>
#include <utility>

int main() {
    // Using uniform initialization to initialize a std::pair
    auto pair = std::pair<int, std::string>{42, "Hello World"};

    // Accessing the elements of the pair
    std::cout << "First element: " << pair.first << std::endl;
    std::cout << "Second element: " << pair.second << std::endl;

    return 0;
}

In the code snippet above, we include the necessary headers <iostream> for outputting the values and <utility> for using std::pair. Inside the main() function, we declare a variable pair and initialize it using uniform initialization syntax.

The type of the pair elements is specified between angle brackets < >. In this example, we have an int as the first element and a std::string as the second element.

To access the individual elements of the pair, we use the .first and .second member variables. In this case, we use std::cout to print the values of the elements.

When you run this code, you will see the output:

First element: 42
Second element: Hello World

By using uniform initialization syntax, you can easily initialize std::pair objects in a concise and readable way.