What is the difference between cout<<1+2; and cout<<1+2<<endl;

Answer 1

endl moves down to a new line before printing the next text

Answer 2

the second thing will make a new line, sience endl mens end line. for example lets asume the first line of the code above as A and the secod as B, if you write A then B the result will be
33
but if you write B then A the result will be
3
3

Answer 3

std::endl flushes the stream so everything gets printed
if you dont use it the stream gets flushed when his tie (in this case std::cin) is used or the programm ends

Answer 4

endl instruction moves outputes to the next line.
you'll see that good writing two codes:
first
cout << 1+2 << 3+4;
second
cout << 1+2 << endl << 3+4;

Answer 5

Thank you!!!