Exponential search, Computer Engineering

Assignment Help:

Exponential Search

Another alternative to variable size decrease-and-conquer search is known as exponential search. This algorithm begins searching at the beginning of the list. It then progressively tests at larger intervals (A[2],A[4],A[8], . . .) until a straddling range is found which may contain the search value. A binary search is then performed on only the suspect range to ?nd the ?nal index position.

ALGORITHM ExponentialSearch (A[0 . . . n - 1], k)

// A variable-size decrease and conquer search in an ordered list.
// INPUT : An array A[0 . . . n - 1] of ordered elements, and a search key k.
// OUTPUT : an index to the position of k in A if k is found or -1 otherwise.
1: set pos ← 2
2: while pos < n and A[pos] < k do
3: prev ← pos
4: pos ← pos  2
5: if pos > n - 1 then
6: pos ← n - 1
7: result ← BinarySearch(A[prev . . . pos], k)
8: if result = -1 then
9: return -1
10: else
11: return result + prev

Algorithm ExponentialSearch shows the pseudocode for this solution. Implement the algorithm.


Related Discussions:- Exponential search

What is the different between index and subscript, Subscript refers to the ...

Subscript refers to the array of occurrence, whereas Index shown an occurrence of a table element. An index can only modified using perform, search & set. Require to have an index

How to create user interfaces for lists, How to create user interfaces for ...

How to create user interfaces for lists? The R/3 system automatically, obtains a graphical user interface (GUI) for your lists that offers the basic functions for list process

Write a subroutine in c which toggles the cursor, Q . Write a subroutine in...

Q . Write a subroutine in C which toggles the cursor? Write a subroutine in C which toggles the cursor. It takes one argument which toggles the value between on (1) and off (0)

Robotics, Based on the disciplines of engineering, AI and physiology robo...

Based on the disciplines of engineering, AI and physiology robotics is concerned with building robot machines with physical capabilities akin to human beings which are cont

What are the two aspects of locality of reference, What are the two aspects...

What are the two aspects of locality of reference? Define them. Two aspects of locality of reference are temporal aspects and spatial aspect. Temporal aspect is that a r

Transport protocol you use to call a web service soap, What is the transpor...

What is the transport protocol you use to call a Web service SOAP? Http is preferred for Soap whereas tcp for binary i.e. HTTP is used in web services and tcp works well in rem

Embedded software, Embedded Software Intelligent products have becom...

Embedded Software Intelligent products have become commonplace for all consumer and industrial market. Embedded software stays in read only memory and is utilised to control

What are the user interfaces of interactive lists, What are the user interf...

What are the user interfaces of interactive lists? If you require the user to communicate with the system during list display, the list must be interactive.  You can describe

Calculate max distance so subscriber get speech reproduction, In a subscrib...

In a subscriber loop that contains a series resistance of 300 ohms to protect the batteries in the exchange, a normalized telephone draws 10 mA and its standard input d.c. resistan

Overflow condition in linked list, Overflow condition in linked list may ha...

Overflow condition in linked list may happen when attempting to Make a node when free space pool is empty.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd