So with key = "0", we have possible keys of 1, 2, or 15. If it isn't a key, we need to keep the value. If it is a key, we still need to keep the value, but also add in the values of the hash at that key.

Do you see now?

Edited
I almost forgot, the values of the item, if it is a key, also can be keys themselves, and need to be treated in the same way.

In reply to Re: Re: A little fun with hashes by abitkin
in thread A little fun with hashes by abitkin

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