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added 4 characters in body

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edited Apr 30, 2017 at 8:43

Ruby, 4850 bytes

p (0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\p{Alnum}/}

Reads from standard input; requires the Ruby interpreter be invoked with the -n option (implicit while gets loop).

Could be reduced to 4143 bytes if it were allowed to match underscores.

p (0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\w/}

(0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\p{Alnum}/}

Reads from standard input; requires the Ruby interpreter be invoked with the -n option (implicit while gets loop).

Could be reduced to 41 bytes if it were allowed to match underscores.

(0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\w/}

p (0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\p{Alnum}/}

Reads from standard input; requires the Ruby interpreter be invoked with the -n option (implicit while gets loop).

Could be reduced to 43 bytes if it were allowed to match underscores.

p (0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\w/}

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answered Apr 30, 2017 at 8:34

Ray Hamel

(0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\p{Alnum}/}

Reads from standard input; requires the Ruby interpreter be invoked with the -n option (implicit while gets loop).

Could be reduced to 41 bytes if it were allowed to match underscores.

(0..~/$/).any?{|n|$_[n,2].to_i.chr=~/\w/}