Step by Step solution about How to resolve the algorithm Here document step by step in the C++ programming language

This is a C++ program that prints a raw string. Raw strings are strings that can contain any character, including newline characters and quotes, without the need for escape sequences. They are declared by prefixing the string with the letter R, followed by a double-quote, an optional identifier, and an opening parenthesis. The string then ends with a closing parenthesis, the identifier (if you used one), and a double-quote.

In this example, the raw string is declared as follows:

R"EOF(  A  raw  string  begins  with  R,  then a double-quote ("),  then an optional
identifier (here I've used "EOF"),  then an opening parenthesis ('(').  If you
use  an  identifier,  it  cannot  be longer than 16 characters,  and it cannot
contain a space,  either opening or closing parentheses, a backslash, a tab, a
vertical tab, a form feed, or a newline.

 It  ends with a closing parenthesis (')'),  the identifer (if you used one),
and a double-quote.

 All  characters are okay in a raw string,  no escape sequences are necessary
or recognized, and all whitespace is preserved.
)EOF"

The identifier EOF is used to terminate the raw string.

The program then prints the raw string to the console using the std::cout object.

#include <iostream> // Only for cout to demonstrate

int main()
{
  std::cout <<
R"EOF(  A  raw  string  begins  with  R,  then a double-quote ("),  then an optional
identifier (here I've used "EOF"),  then an opening parenthesis ('(').  If you
use  an  identifier,  it  cannot  be longer than 16 characters,  and it cannot
contain a space,  either opening or closing parentheses, a backslash, a tab, a
vertical tab, a form feed, or a newline.

  It  ends with a closing parenthesis (')'),  the identifer (if you used one),
and a double-quote.

  All  characters are okay in a raw string,  no escape sequences are necessary
or recognized, and all whitespace is preserved.
)EOF";
}