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rbdelete stuff

release0.1.5
Georg Hopp 12 years ago
parent
commit
5af0f9f243
  1. 35
      docs/rbdelete.txt

35
docs/rbdelete.txt

@ -93,15 +93,48 @@ where 6 subcases could be distinguished.
Wikipedia says we begin with replacing B(3) which one if its childs, in my Wikipedia says we begin with replacing B(3) which one if its childs, in my
case this means, setting r(8)->left to NULL.... case this means, setting r(8)->left to NULL....
B(11)
R(8) R(13)
B(N) B(9) B(12) B(16)
B(N) R(10) B(N) B(N) B(N) B(N)
B(N) B(N)
So, what is called in on Wikipedia is simply a nullpointer for me...hopefully So, what is called in on Wikipedia is simply a nullpointer for me...hopefully
I don't have to do anything with it. I don't have to do anything with it.
Get an overview over our variables now: Get an overview over our variables now:
N : Nullpointer set in R(8)->left
N : Nullpointer set in R(8)->left (thus N will be black by definition, ever)
P : R(8) P : R(8)
S : B(9) S : B(9)
Sl: Nullpointer Sl: Nullpointer
Sr: R(10) Sr: R(10)
we have case 2 described in Wikipedia (reverse colors of P and S)
B(11)
R(8) R(13)
B(N) B(9) B(12) B(16)
B(N) R(10) B(N) B(N) B(N) B(N)
B(N) B(N)
still case 2 rotate left on P
B(11)
B(9) R(13)
B(8) R(10) B(12) B(16)
B(N) B(N) B(N) B(N) B(N) B(N) B(N) B(N)
# vim: set et ts=4: # vim: set et ts=4:
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