What is printed from this code?

There are 2 different answer option(s) of this question, please select the right option(s).

vector<int> v(22);
bool b = (v[6]);
printf(“%d”, !b);

• False
• 0
• 1
• This code has an error.

or

int i = 0;
printf(“%d”, i++);
printf(“%d”, i–);
printf(“%d”, ++i);
printf(“%d”, –i);

• 0,1,1,0
• 0,1,0,1
• 0,0,1,0
• 1,0,1,0