How to make range for values?

Question

C++ / C#

I have a variable that changes every second

. So, I need to get the maximum and minimum values ​​​​from it, then find out the average of these numbers

. " is a variable, not a predefined number.

I didn’t find anything sensible, either restrictions on numbers, or searching for numbers in an array

Answer 1

var твоя_переменная = ;
var min = 0;
var max = 0;
if(твоя_переменная < min) {
    min = твоя_переменная;
}
if(твоя_переменная > max ) {
    max = твоя_переменная;
}