Can You Explain?

Question

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

outputs 4.

so i understand it but i dont REALLY understand it. they say a++ changes changes the value of b to a but doesnt increment till the cout line is ran but ++b increments then changes the value. i dont get it 😅. any help would be fantastic THANKS!!

Answer 1

b gets the value of a (3) and then a is incremented afterwards b is incremented once before output (4)
(~_~)

Answer 2

b=a++ means b=a and a=a+1
cout<<++b means b=b+1 and cout<<b

Answer 3

when u do ++a means the value increments and sets the incremented value to b.
b = ++a;// a=a+1; b=a;
when you do a++ means the initial value will be stored in b ,the value will be incremented.
b = a++;//b=a; a=a+1;

Answer 4

yea i know but why does a++ basically just make b inherit the value of a and nothing more? why not just say b = 3?

Answer 5

like why does b=a++ not make b 4? it takes 3 1ST then what, it just completly forgets about the ++ part and doesnt increment it? thats what doesnt make sense.