This does not look as a cycle or a circle to me.

Why not? 

1 2
  2 3
1   3

DO YOU SEE IT NOW?
 [1,--2]
  |   |
  |  [2,3]
  |     |
 [1,----3]

[download]

In reply to Re^4: Tree in perl by Anonymous Monk
in thread Tree in perl by saurabh2k26

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