Can you explain what standard output (stdout) is?

Standard output (stdout) is one of the standard input/output streams in operating systems, intended for outputting data from a program. Usually, stdout is associated with the console or terminal where the program outputs textual information.

In C/C++, stdout is represented by the object stdout (in C) or the stream std::cout (in C++). Using stdout, a program can output results, messages, or debugging information.

Example of output to stdout in C++:

#include <iostream>

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

In Unix systems, stdout can be redirected to a file or another process, which is convenient for logging or data processing.