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Suppose you want to perform an experiment to verify the problems that can be caused by random insert / remove pairs. Here is a strategy
Suppose you want to perform an experiment to verify the problems that can be
caused by random insertremove pairs. Here is a strategy that is not perfectly random, but close enough. You build a tree with N elements by inserting N elements
chosen at random from the range to M alpha N You then perform N pairs of insertions followed by deletions. Assume the existence of a routine, randomIntegerab
which returns a uniform random integer between a and b inclusive.
a Explain how to generate a random integer between and M that is not already
in the tree so a random insertion can be performed In terms of N and alpha what
is the running time of this operation?
b Explain how to generate a random integer between and M that is already in
the tree so a random deletion can be performed What is the running time of
this operation?
c What is a good choice of alpha Why?
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