• Re: Day 6 of Advent of Code in Commodore 128 Basic

    From Anssi Saari@3:770/3 to ArcadeAge on Sat Dec 15 14:43:16 2018
    ArcadeAge <wwww.leser@gmail.com> writes:

    Does the challenge consist in writing a fully general solution to the mathematical problem? Or are they content if your program can solve
    the given major problem?

    Specific problem solving only, they expect a specific result from a
    specific set of input data. One assumes they check the answers
    automatically.

    Would it be a lot of work to devise a problem instance that is too
    hard to solve by hand but still can be solved by a standard Commodore
    128 within a few minutes?

    Probably not. I looked at the first two problems, both have two parts. I
    think a C64 (or 128) can easily do three of them. The fourth needs some
    memory where 64 or 128 KB is not enough and I at least can't see a way
    around that. Maybe with a RAM expansion. I wouldn't want to do that
    with a floppy drive although a 1581 would work. And now that I've
    thought that far, maybe I have to do just that :)

    I actually tried doing one of the Euler project problems on a C64. After
    a lot of head scratching the problem reduced to 400 additions which of
    course a C64 can do easily. Only problem was, the result needed about 36
    bits and cc65 only has 32-bit integers.

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