I wonder why output is 13?

Question

int x = 3;
while (x++<10)
{
x += 2;
}
cout <<x;
return 0;

Answer 1

1st iteration:
x++<10 => 3<10 true, x++, x=x+1
x=4, x+=2=> x=6,

2nd:
x<10 => 6<10 true, x++, x=7,
X+=2 =>x=9

3rd:
X<10 =>9<10, true, x++=>x=10
X+=2. =>x=12,

4th:
X<10=> 12<10 false, loop stops, x++ =>x=13

X++, Post increment first uses the value then increments... So answer is 13
Hope this helps you....

Answer 2

The condition will be ran 1 more time than the code block.

Answer 3

x=3, then x++ == x = x +1 so x=4
4 < 10 so 4 + 2 = 6
Why output is 13???

Answer 4

Thank you very much! Yeah! I get it!