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  1.  
  2. x = 24987654
  3.  
  4. x -= x % (10 ** (Math.log(x, 10).to_i - 1))
  5.  
  6. puts x
  7.  
  8.  
Success #stdin #stdout 0.01s 7408KB
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Standard input is empty
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24000000
https://ideone.com/trSNOr
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
public

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