[c++] please explain me why the answer is 2

Question

int c,j=0,n=0;
for(c=1;c<=5;c++){
j=j++;
}
n=j+2;
j=n;
cout<<j;

Answer 1

Because, loop does not increase j value. j++ means it will increase value of j by 1 on next cycle. But j=j++, does not increase its value. After that n=j+2; it make n = 2. At last j=n. So, j =2 as output

Answer 2

@Aditya
this should work according to you but it is not working
https://code.sololearn.com/ciBxIDas5kx9/?ref=app

Answer 3

it will be 6