Challenge in C++ (Is equal or not?)

Question

The challenge is simple

You have to make a code taking three integer(a,b,c) inputs and will print TRUE if the sum or difference of b and c is a
and if not it will print FALSE

sample input: 5 4 1
sample output TRUE

Answer 1

Thanks for simple challenge.. my code:

https://code.sololearn.com/ceGywYIGWnIQ/?ref=app

Answer 2

https://code.sololearn.com/cN8ja3DpZ9mS/?ref=app

Here you go. Checks for valid input