Since Underload has no input command, I have some questions relating to hard-coded input:

  • Is hard-coded input allowed by default?
  • If it is allowed, can the hard-coded input be anywhere in the program?
  • Are you allowed to use Underload's way of storing numbers for hard-coded input in challenges that require number input?
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  • \$\begingroup\$ Can we allow hard-coded input in languages that support input commands? \$\endgroup\$ – user85052 Aug 25 '19 at 4:45
  • \$\begingroup\$ I don't think so, since the only thing mentioning hard-coded input is this, and that only mentions languages that don't support input. \$\endgroup\$ – EdgyNerd Aug 25 '19 at 6:53

It is not so clear, but we've had discussions about similar topics. A first place to look would be here but there doesn't seem to be anything about Underload yet.

From the "default IO for "-question it seems that taking inputs as predefined variables is not accepted [1] [2] which is also argued to make the answer a snippet which is not accepted either [3], but at the same time there seem to be exceptions, for example if you use a variable that just stores the result of the last execution [4] or if you are using assembly [5] or some form of turing machines [7] (I'm not sure whether this also covers BrainFuck).

One question mentiones Underload in the context of functions [6], another one also asks about underload and the use of point-free functions [7], so it seems writing lambda expressions/pointfree furnctions to make your submission a function is the best way to go, because functions are allowed by default [8].

I'm not sure about the numbers, but since unary is allowed [9] and using the byte values as numeric input is allowed too [10] I'd argue that the default of using Church numerals in Underload should be allowed too.

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