What will the following code display?

int number = 6

int x = 0;

x = - -number;

cout << x << endl;

1. 7

2. 6

3. 5

4. 0

5

Explanation:

The operator '--number', it is a pre decrement operator which decrement first and then assign. It decrement the value by 1.

initially the number is 6.

x is 0.

then, x = - -number;

it decrement the number by 1 first and then assign to x.

so, x assign the value 5.

finally, print the value.

Therefore, the answer is 5.