The cin command

Question

Basically I've been replacing

int x = 4;

with
int x;
cin >> x

So its easier to try different inputs instead of constantly having to change code

Answer 1

I don't think this is a good idea, when you start making big programs stuff like this might confuse you or override some values

Answer 2

It's better to assign 0 for int type. Like this int x=0;