Can someone explain me this code?[SOLVED]

Question

Why is the output 1 and not 0 as we have the NOT operator (!) ?
https://code.sololearn.com/chOPmOT8me1G/?ref=app

Answer 1

Because "!b" is not modifying b

You should write b=!b;

Answer 2

The command "!b;" just evaluates to false, but this result is not used by anything.

It's like writing "2+2;", it evaluets to 4 but that 4 is not used

So nothing changes

Answer 3

Angelo Ohh yeahh you're right I understood it now. Thank youu!

Answer 4

Angelo true but then what changes with !b?