From: "Jan E." <lists@...>
Date: 2012-07-05T03:46:49+09:00
Subject: Re: Insert letters of the alphabet between the original letters of a string

Hi,

What's "cad"? It isn't defined anywhere.

Apart from that, the calculation of the indices for insertion is wrong. 
You start with 2 instead of 1, and you don't take into account that the 
string is growing with each step.

The indices have to be 1, 3, 5, 7, ...


# repeat the characters infintely, because the string may have any 
length
alphabet = ('a'..'z').cycle

string = "String"
0.upto string.length - 2 do |i|
  string.insert 2 * i + 1, alphabet.next
end
puts string


But like I already said in your last thread: Ruby isn't Java. You need 
to get rid of this strange "for" loop.

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