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deleted 45 characters in body

edited Oct 20, 2013 at 13:43

JavaScript (102 characters)

Requires support for arrow functions. This will work unmodified in JavaScript Shell or otherwise when print is changed to alert.

for(j=k=l=-~'',j=++j+j,j*=++j;j--;)print(k=(''+k).replace(RegExp('(.)\\'+l+'*','g'),(a,b)=>a.length+b))

answered Apr 30, 2011 at 7:57