arithmetic without variables?

[manutdfan]

I have been told to write a program which calculates total cost using values for amounts of resources and cost. I am supposed to write the program in functions, which I understand how to do although I am told I cannot use global variablesn and don't need to use local variables.

But I don't understand how I can do the arithmetic without variables, and also how to pass the values between the functions without using global variables.

I am new to programming so I am sorry for asking questions which are probably very basic, I have had a quick look through the FAQ's and tutorials but I still can't seem to find anything that would help me.

Thanks

[vart]

You should pass a values to the functions as parameters... And (seems strange to me) use only these parameters variables in your calculations

[SpaceCadet]

int calcDeficit(int x, int y)
{
    return (x-y);
}

int main (void)
{
    int MUFC_points=25;
    int LFC_points=14;

    int deficit=calcDeficit(MUFC_points, LFC_points);

    if (deficit > 10)
    {
        printf ("%d points behind. You're season is over Mickey!", deficit);
    }
    else
    {
        printf("Dream on mate, United are %d points ahead already. You know you can't catch them!", deficit);
    }
}

Enjoy. Know I did!

[CornedBee]

Parameters are local variables. The instructions you got are factually incorrect. It is impossible to do anything useful without local variables when you're not allowed to use global variables.

[jafet]

Pity C doesn't have lambda functions You could try argc and argv, but that'd be a stretch.

[maxorator]

Who are such teachers who give these STUPID assignments?

They should be burned, because they are teaching stupid things...