Why is the answer 12?

Question

int f=1, i=2;
while(++i<5) {
f*=i;
}
cout<<f;

Can someone explain to me why the answer is 12? I thought that it would be 2 because you are basically multiplying f from i (1*2), as long as it is below 5.

Answer 1

You add 1 too i in the begining of the loop. So i Will be 3 and 4. Last loop Will be 3*4=12