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Actually readable Level Order Traversal

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James Eversole 2025-01-20 20:10:14 -06:00 committed by James Eversole
parent ec0a6b7b16
commit aac10d031d
1 changed files with 36 additions and 7 deletions
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43
demos/LevelOrderTraversal.tri
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@ -17,18 +17,47 @@
-- 4 5 6
--
isLeaf = (\node : lOr (emptyList node) (emptyList (tail node)))
getLabel = (\node : head node)
getLeft = (\node : if (emptyList node) [] (if (emptyList (tail node)) [] (head (tail node))))
getRight = (\node : if (emptyList node) [] (if (emptyList (tail node)) [] (if (emptyList (tail (tail node))) [] (head (tail (tail node))))))
isLeaf = (\node :
lOr
(emptyList node)
(emptyList (tail node)))
getLabel = (\node : head node)
getLeft = (\node : if (emptyList node)
[]
(if (emptyList (tail node))
[]
(head (tail node))))
getRight = (\node : if (emptyList node)
[]
(if (emptyList (tail node))
[]
(if (emptyList (tail (tail node)))
[]
(head (tail (tail node))))))
processLevel = y (\self queue : if (emptyList queue)
[]
(pair (map getLabel queue) (self (filter
(\node : not (emptyList node))
(lconcat (map getLeft queue) (map getRight queue))))))
processLevel = y (\self queue : if (emptyList queue) [] (pair (map getLabel queue) (self (filter (\node : not (emptyList node)) (lconcat (map getLeft queue) (map getRight queue))))))
levelOrderTraversal = (\a : processLevel (t a t))
toLineString = y (\self levels : if (emptyList levels) "" (lconcat (lconcat (map (\x : lconcat x " ") (head levels)) "") (if (emptyList (tail levels)) "" (lconcat (t (t 10 t) t) (self (tail levels))))))
toLineString = y (\self levels : if (emptyList levels)
""
(lconcat
(lconcat (map (\x : lconcat x " ") (head levels)) "")
(if (emptyList (tail levels)) "" (lconcat (t (t 10 t) t) (self (tail levels))))))
levelOrderToString = (\s : toLineString (levelOrderTraversal s))
flatten = foldl (\acc x : lconcat acc x) ""
flatLOT = (\s : lconcat (t 10 t) (flatten (levelOrderToString s)))
exampleOne = flatLOT [("1") [("2") [("4") t t] t] [("3") [("5") t t] [("6") t t]]]]
exampleOne = flatLOT [("1") [("2") [("4") t t] t] [("3") [("5") t t] [("6") t t]]]
exampleTwo = flatLOT [("1") [("2") [("4") [("8") t t] [("9") t t]] [("6") [("10") t t] [("12") t t]]] [("3") [("5") [("11") t t] t] [("7") t t]]]
exampleOne