I need to show a volume and the hour it was recorded for various data manipulations (smallest number, largest, sort in ascending order, etc) How do I return both the hour and the volume in my function?
You could make a structure:
Code:
struct Data { int hour; int volume; };

Data smallest( ... )
{
    struct Data d = { -1, -1 };

    ... do stuff ...

    d.hour = hour;
    d.volume = volume;
    return d;
}
Quzah.