Explain binary searching, Fibinocci search.

Answer Posted / kamal.r

Searching a binary tree for a value that matches a key value
is FAST, especially for tightly packed trees (a tightly
packed tree contains about twice as many elements as the
previous level)
o Therefore at most log(2)n comparisons are required either
to find a match or determine that no match exists.
o For example, searching a tightly packed 1000-element
binary search tree requies at most 10 comparisons because 2
o a binary search tree with n elements has a minimum of
log(2)n levels
o in-order: 0. if parameter node is null then return; 1.
recursive traverse left subtrees entirely 2. display data 3.
recursive traverse right subtrees entirely
o pre-order: 0 if param node is null return 1. display data
2. recursive traverse left subtrees entirely 3. recursive
traverse right subtree entirely.
o post-order: 0 if param node is null then return; 1.
recursive traverse left subtrees entirely 2. recursive
traverse right subtree entirely 3. display data
o to keep it efficient you must make sure to keep tree
balanced. Best way is to ensure the inputted data is coming
in with random values...If they are sorted in
ascending/descending order the tree will definitely become
unbanlanced

Fibnacci search

The Fibonacci Sequence is defined such that the first two
numbers of
the sequence are 0 and 1. subesequent numbers are the sum of the
previous two. e.g.

0, 1, 1, 2, 3, 5, 8, 13 ......

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