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HackerRank tells you all you need to know about the input, so it's a completely different situation from an arbitrary CLI. This approach works for the type of problems on this particular site, and for the typical use case where input comes from a terminating program or a file.
It actually won't run forever because of a handy thing called EOF.
Functions or Not?
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how do you know how many lines to read? In a situation where a user is inputting a variable set of inputs, would this work?
If you run this it will just ask for inputs forever.
also, I think that you don't need to define your own read if your run function has a definition
run :: [Int] -> [String]HackerRank tells you all you need to know about the input, so it's a completely different situation from an arbitrary CLI. This approach works for the type of problems on this particular site, and for the typical use case where input comes from a terminating program or a file.
It actually won't run forever because of a handy thing called EOF.
Nice idea about the type sig, though.
how would you write
on one line?