How to print output in C++?

 In C++, you can print output to the console using the std::cout object, which is part of the C++ Standard Library. Here's an example of how to use std::cout to print output in C++:

c++
#include <iostream>

int main() {
    std::cout << "Hello, world!" << std::endl;
    return 0;
}

In this example, we use std::cout to print the string "Hello, world!" to the console. The << operator is used to insert the string into the output stream, and std::endl is used to end the line and flush the output buffer.

You can also use the << operator to print other types of data, such as numbers or variables. For example:

c++
#include <iostream>

int main() {
    int x = 42;
    double y = 3.14;

    std::cout << "The value of x is: " << x << std::endl;
    std::cout << "The value of y is: " << y << std::endl;

    return 0;
}

In this example, we print the values of the integer variable x and the double variable y to the console using std::cout.