Output of this small program is 9. How?

Question

https://code.sololearn.com/c49e664iF1uc/?ref=app

Answer 1

Ayush Singh you might want to take a look at the lessons explaining "unary operators" again.
When you use "++x", this happens...
x=x+1;
It's value increments by 1 and gets "stored".
Thus, the first time u did ++x it became 4, the second time it became 5. Therefore, 4+5. Which is 9.

Answer 2

int z = ++x; // z = 5 not 4