Binary search tree: remove

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Revision as of 22:03, 19 September 2014 by Jhohmann (talk | contribs)
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TREE-DELETE(T,z)

if left[z] = NULL or right[z] = NULL
then y = z
else y = TREE-SUCCESSOR(z)
if left[y] ≠ NULL
then x = left[y]
else x = right[y]
if x ≠ NULL
then p[x] = p [y]
if p[y] = NULL
then root[T] = x
else if y = left[p[y]]
then left[p[y]] = x
else right[p[y]] = x
if y ≠ z
then key[z] = key[y]
copy y's satellite data into z
return y