Unary operator!!!?!?

Question

I got stuck....in unary operator...a=10
;b=-10;
(~a)=-11 ..(~b)=9....
~a=-11 this is understood as like 0 to 10 is 11 number and for ~ it is -11
But how (~b) =9;

Answer 1

~ flips the bits in the binary form of a number...
b = -10 = 1111... 1111 1111 0110
~b = 0000... 0000 0000 1001
= 9(decimal)
https://www.sololearn.com/learn/4076/?ref=app

Use this code to convert decimal number to binary and apply the bitwise complement 👇
https://code.sololearn.com/cDWx71pvFez9/?ref=app