Can anyone please tell what this does and how we got this output?

Question

https://code.sololearn.com/cMQ7whO9jj2f/?ref=app

Answer 1

It just printing i value
i and +i are here same -2 and +(-2)=-2 finally -2 and -2 only..
Line no:5 has no effect..

Answer 2

Thank you Jayakrishna🇮🇳

Answer 3

Adding to Jayakrishna

https://en.cppreference.com/w/cpp/language/operator_arithmetic#Unary_arithmetic_operators

Answer 4

Hope it clears...
You're welcome..