Explain me this code pls

Question

https://www.sololearn.com/post/615489/?ref=app

Answer 1

Smiley Hope it helps you
https://www.sololearn.com/learn/4073/?ref=app

Answer 2

Binary or "|" ,compares the bits of two numbers and
returns 1 if 1and 0,
1 if 1 and 1,
0 if 0 and 0
Binary value of 5 is =>0b101

0b101
0b101 with or operator results in

0b101

Binary value of 10 is 0b1010

0b1010
0b0101 with or operator results in

0b1111

0b101 is equivalent to 5 in decimal number system and 0b1111 is equivalent to 15

So 5+15=20