code doubt??

Question

int a=3;
int b=2;
b=a++;
cout<<++b;

Answer 1

it will print 4.

Answer 2

b = a++;

// it's post increment here and currently a is 3. So b is assigned to 3

cout << ++b;
// It's pre increment. So b will be incremented before its prints. 3 + 1 = 4. So b is changed to 4.

Finally 4 is the answer. Hope you understand this concept

Answer 3

i wnt explanation for this