Challenge: Designing a NumberRange Struct

Problem statement

Design a struct that works similarly to NumberRange, which also supports specifying the step size. The step size can be the third member:

Sample input

foreach (element; NumberRange(0, 10, 2)) {
    write(element, ' '); 
}

Sample output

The expected output of the code above is every second number from 0 to 10:

0 2 4 6 8

Challenge

This problem is designed for you to practice, so try to solve it on your own first. If you get stuck, you can always refer to the explanation and solution provided in the next lesson. Good luck!