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Dumping trees to a console.

by BrowserUk (Pope)
on Oct 15, 2012 at 14:11 UTC ( #999091=CUFP: print w/ replies, xml ) Need Help??

Dumping trees to a terminal in a compact, readable form is an invaluable aid to developing and debugging tree-based algorithms. The following demonstrates a mechanism for doing this for array-based binary trees:

A couple of examples:

C:\test>genBinTree -S=1 ___________ ___________/ \___ _______/ \_ _/ \ _____/ \_ _/ \_ _/ \_ z _/ \_ _/ \_ _/ \ / \ _/ \ / \ _/ \_ _/ \ _/ \ / \ _/ \ r s t / \ w x y _/ \ / \ / \ h / \ k m n / \ q u v / \ c d e f g i j o p a b C:\test>genBinTree -S=1 -N ___________ ___________/ \___ _______/ \_ _/ \ _____/ \_ _/ \_ _/ \_ z _/ \_ _/ \_ _/ \ / \ _/ \ / \ _/ \_ _/ \ _/ \ / \ _/ \ r s t / \ w x y _/ \ / \ / \ h / \ k m n / \ q u v / \ c d e f g i j o p a b a b c d e f g h i j k m n o p q r s t u v w x y z l r h e c o o o n u i i o s a u o i a n i h r a u p a a l h x l t d l l k v c p e m e n i c i a n l h v r t o t f e i i o e e a a b e r g f t s y k u a o l a r l g e m r e o r o o o k e i o o t b c a r r e e e t e m y r C:\test>genBinTree -S=1234567890123456789 _____________________ _______/ \_ _______/ \___________ _/ \___ _/ \ _____/ \ _/ \ / \_ / \___ f / \_________ q _/ \ v w _/ \ a / \_ g ___/ \ _/ \ u / \ z b _/ \ / \_____ p / \ t x y / \ e h _/ \_ r s c d / \_ _/ \ i / \ / \ o j k m n C:\test>genBinTree -S=123456789012345678 _______ ___/ \_ _/ \_ _/ \_______ / \_ / \_ / \ / \_________ a / \ d / \ g h i _/ \___________ b c e f _/ \ ___/ \_ _/ \ n _/ \ _____/ \ / \ m _/ \_ s ___/ \ z j k / \ / \ / \_ y o p q r t _/ \_ / \ / \ u v w x

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