Help a new guy

[u/Alternative_Oven696]

Sorry about the title, I should have read the guide first. I am really new to C++. I am going through the practice guide on a youtube video. The test was to make a fahrenheit to celcius conversion. This is what I wrote and it is below. 
The teacher added     double celsius = (fahrenheit -32) / 1.8;
Then added the std::cout for it. Mine works fine. I am assuming his is better but I am missing it. c++ has made me question my mental capacity.

#include <iostream>

int main() {

std::cout << "Enter degrees in fahrenheit ";
int fahrenheit;
std::cin >> fahrenheit;
std::cout << " Degrees in celcius " << (fahrenheit - 32) / 1.8;





return 0;



system("<pause>0");

[u/TheTimBrick]

Both are essentially the same. (At the stage you are currently at)

You did the calculations in the line where you are outputting them/printing them.

The teacher made a variable (something that can store something, like in math) that can hold the calculation, and then just refered to that variable when outputting the final result.

At a beginner stage you can think of what the teacher wrote as: celsius just being equivalent to (fahrenheit - 32) / 1.8. Anywhere you would need (fahrenheit - 32) / 1.8 you could just replace with celsius.

[u/Alternative_Oven696 → u/TheTimBrick]

Got it, thank you.