65535 is a positive number, so the complement code is the same as its original code. Taking 16 bits as an example, the binary system is 1111111111111111 and the hexadecimal system is ffff. Writing in binary is tedious, complex, and error-prone; since the base of hexadecimal is the fourth power of 2, hexadecimal can be implemented.
What you can do to remember the victims of Colorado's Columbine High
