Treelib: rotace stromu
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@ -235,6 +235,52 @@ def swap_succ(node):
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# Dokumentace viz wiki:
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# Dokumentace viz wiki:
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# (lower bude jednoduchá rotace, ne mega, existence jednoduché rotace mi došla až po nakreslení obrázku)
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# (lower bude jednoduchá rotace, ne mega, existence jednoduché rotace mi došla až po nakreslení obrázku)
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def raise_node(node):
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def raise_node(node):
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if node is None:
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raise TreeLibError("Nelze přesunout None. Tohle by se nemělo stát.")
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# Pojmenování viz WIKI (as of 2020-03-19 01:33:44 GMT+1)
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# FIXME: Velmi naivní, chybí error checky
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D = node
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C = get_parent(D)
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E = C.succ
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subtree4_head = D.first_child
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subtree4_tail = last_brother(subtree4_head)
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subtree3P_head = D.succ
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subtree3L_head = C.first_child
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subtree3L_tail = safe_pred(D)
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# Prostor pro motlitbu...
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pass
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pass
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# Amen.
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C.succ = D
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C.save()
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D.succ = E
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D.save()
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subtree3L_tail.succ = None
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subtree3L_tail.save()
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subtree4_tail.succ = subtree3P.head
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subtree4_tail.save()
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# To by mělo být všechno...
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def lower_node(node):
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def lower_node(node):
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if node is None:
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raise TreeLibError("Nelze přesunout None. Tohle by se nemělo stát.")
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# Pojmenování viz WIKI (as of 2020-03-19 01:33:44 GMT+1)
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# FIXME: Velmi naivní, chybí error checky
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C = node
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D = C.succ
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B = safe_pred(C)
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subtree2_head = B.first_child
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subtree2_tail = last_brother(subtree2_head)
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# Prostor pro motlitbu...
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pass
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pass
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# Amen.
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B.succ = D
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B.save()
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subtree2_tail.succ = C
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subtree2_tail.save()
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# To by mělo být všechno...
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