Boolean Truth Table C++_How Does it Work?

Question

Given the following code:

int x = 1;
int y = 2;
int z = 3;

Which of the following presents the how the evaluation is done?
if ( (x == 2) || (y == 2) || (z == 2) )

1.
false or true or false
false or false
false

2.
false or true or false
false or false
true

3.
true or true or false
true or false
false

4.
false or true or false
true or false
true

Answer 1

x==2 is false, y==2 is true, and z==2 is false again.
So it's: false OR true OR false.
Or-statements evaluate true if at least one factor is true, given by y==2.
So the entire evaluation is true and the if-block will be executed.

Answer 2

logical statement are a little different that classical operators
a or ... will return true if a is true without testing the right part
a and ... will return false if a is false without testing the right part
so :
0 && call() will never do call
neither do :
1 || call()

Answer 3

1- false or true or false will be true
it is bcoz in between false and true the logic operator is OR which states that either of the operand is true the answer will be true.