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  1. main = interact $ f" "0
  2.  
  3. b="([{<"
  4. d=")]}>"
  5. y=cycle
  6. (!)=elem
  7. f(e:c)n(x:r)|x!b=y b!!n:f(y d!!n:e:c)(n+1)r|x!d=e:f c(n-1)r|1<3=x:f(e:c)n r
  8. f c n s=s
Success #stdin #stdout 0s 4724KB
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stdin
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<<<>><<>><<<<<<>>>>>>>
stdout
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([{}][{}][{<([{}])>}])
https://ideone.com/4zg9fJ
language:
Haskell (ghc 8.4.4)
created:
7 years ago
visibility:
public

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