What is this: cout << (y>>2)?

Question

https://code.sololearn.com/cXn0zTm0TdE6/?ref=app

Answer 1

>> 2 is a bitwise right shift by 2 positions. It's effectively the same as an integer division by 4:

0b00010001 (17)
>> 1:
0b00001000 (8, trailing -1 is lost)
>> 1:
0b00000100 (4)

Answer 2

thanks Anna.
this code is a good explain too.

https://code.sololearn.com/c3btxo5900gg/?ref=app