Thank you, this is elegant solution (a little bit complicated for late night but working :)). How did you mean keeping counter for $index? And also, I am aware that this will work only if @arr is "sorted", I will try to improve algorithm and if I lost then I will ask again :) Thank you.

In reply to Re^2: Convert array to tree OR why variable changes arbitrarily by Anonymous Monk
in thread Convert array to tree OR why variable changes arbitrarily by Anonymous Monk

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