How will be the code if we did not use endl.

Answer 1

endl ends the line so the next output will start on a new line.
cout << "hell";
cout ≤≤ "o";
// Output:
hello

cout << "hell" ≤≤ endl;
cout ≤≤ "o";
// Output:
hell
o

Answer 2

you can use \n onside double quotes to go to next line as

cout<<"\n";