Precedence of operators

Question

In this code if variable passed 0 result to the condition why result is 4 in else block?
https://code.sololearn.com/c0vgSFyS7D7q/?ref=app

Answer 1

https://code.sololearn.com/cYN26HkMh8t2/?ref=app

Answer 2

After closing parenthesis if the a variable is 1 the condition is true in this case condition is false meanes a=0

Answer 3

No. a++ means it first uses the value of a, then increments it no matter what happens.

Answer 4

https://www.sololearn.com/learn/CPlusPlus/1610/?ref=app

Answer 5

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