itch.io

If you mean the "pages" on the right side, That's used for the '!' subprogress instruction. But yes, I do think the current subprocess implementation is not good enough. Maybe I will change to other designs, or even remove it.

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Section 5 requires the use of nested loopings. People new to Brainfuck always stuck at calculating multiplying. Multiply is simply performing additions many times. But adding in Brainfuck will simply destroy the origin number. So what you should do is to keep a copy of it.

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Section 7 reqiuires the use of looping as condition statements. It may be a little more difficult than the problems before. But once you get that point, you will have ideas to solve them.

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Finally, thanks for playing.

There's a zero among the input numbers in "Plus 2" test case 7, which confusing the program as an EOF.

I agree with you if you are writing an command line interpretor for brainfuck. But this is a game.

Maybe I am taking the game "Human Resource Machine" into consideration. That's weird when I produced an output as expected but the game did not finished.

If I flip the order of operations in @Sebungifto's code, the execution will fail.

+[,.]

The execution should stop when there is a read operation but no more input exists.  

There should be no any judgements to the execution position of the source code. And zero should not be inputed as a fallback.