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  1. def d(a,b,c)
  2.   n=(a<0)^(b<0)
  3.   a=-a if n
  4.   m=a/b-b/a
  5.   l=m.to_s.size-1
  6.   g=(a*10**(10+c)/b).to_s
  7.   f=m<0?"."+"0"*(l-1)+g[0..c-l-1] : g[0..l]+"."+g[l+1..c-2]
  8.   p n ? "-"+f : f
  9. end
  10.  
  11. d(53228,16943,20)
Success #stdin #stdout 0.01s 7460KB
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Standard input is empty
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"3.141592398040488697"
https://ideone.com/fvmcfb
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
secret

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