What exactly does "printw" do? (Ncurses)

ncurses

Solution

5 seconds on `Google` revealed some nice documentation.

printw() class: Print formatted output similar to printf()

and

6.3.1. printw() and mvprintw

These two functions work much like printf(). mvprintw() can be used to move 
the cursor to a position and then print. If you want to move the cursor first 
and then print using printw() function, use move() first and then use printw() 
though I see no point why one should avoid using mvprintw(), you have the 
flexibility to manipulate.

Source - NCURSES-Programming-HOWTO

Problem

Original source