What does (~)mean?

Answer 1

In case of c/c++(I'm not aware of other langs) it works differently. Like ~n is ~(n+1). But in general, ~n will be converting it into equivalent 0's and 1's(binary) and toggling them and then again converting it back to decimal. Can someone plz explain this behaviour.

Answer 2

Bitwise not. If the starting bit is 1, make it 0, otherwise, make it 1.
x = 0101
~x = 1010

Answer 3

https://www.sololearn.com/learn/4076/?ref=app