Recursive binary search, Computer Engineering

Assignment Help:

The implementation of a (non-recursive) binary search of an array. The assumption is that a given array is sorted. We want to see if a particular value, that we'll call the target value, is in that array and, if so, where. In a binary search one checks the value in the middle of the array, i.e., if there are N elements in the array, one checks if the element with index (int)N/2 matches the target. (Note that if there are an even number of elements in the array, there is no true mid-point. The element with an index of (int)N/2 has one more element "below" it than it does "above" it.) If the value in the middle of the array is less than the target, then the function searches the portion of the array that is above the current middle, i.e., the new array to be searched starts with the element above the current middle and there are N - (int)N/2 - 1 elements in that. If the value in the middle of the array is greater than the target, then the function searches the portion of the array that is below the current middle. In this case the new array to be search starts where the original array started but now it is considered to have N - (int)N/2 elements. When the function is given an array of one element and if there is no match, the function returns NULL. (Or, if there is nothing left to search, e.g., there are no more elements "above" the current mid-point of a two-element array, the function returns NULL.) If there is a match, the function returns the address of the element that matches the target. Write a function called bin search() that takes three arguments: an integer pointer, the number of elements, and the value to be searched for (the target value). As indicated above, if the target is found in the array, the function returns the address (i.e,. an integer pointer) where the target was found. If the value is not found, it returns NULL.


Related Discussions:- Recursive binary search

Explain jk flip-flop using sr flip-flop, Q. Explain 4 bit Ripple counter wi...

Q. Explain 4 bit Ripple counter with necessary diagram. Q. Explain JK Master-slave Flip-flop with block diagram and logic design. Q. Explain JK flip-flop using SR flip-flop

Implementing protection with virtual memory, Implementing Protection with V...

Implementing Protection with Virtual Memory - computer architecture: To enable the operating system to implement protection in the VM system, the HW have to: I. Support at

Explain e-brokerage, E-brokerage. An e-brokerage is an investment house...

E-brokerage. An e-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.

Basic operational concepts of a computer, Basic Operational Concepts of a C...

Basic Operational Concepts of a Computer: Most of computer operations are executed in the ALU (arithmetic and logic unit) of a processor. For an example: to add 2 numb

Software, its language base assignment

its language base assignment

Which process is used for page reference, Locality of reference implies tha...

Locality of reference implies that the page reference being made by a process is Ans. Locality of reference means that the page reference being made through a process is proba

Resolution method - artificial intelligence, Resolution Method - Artificial...

Resolution Method - Artificial intelligence: A minor miracle happened in 1965 when Alan Robinson published his resolution function. This function uses a generalized format of t

Timing in mpi program, Q. Timing in MPI program? MPI_Wtime ( ) returns ...

Q. Timing in MPI program? MPI_Wtime ( ) returns lapsed wall clock time in seconds because some random point in past. Elapsed time for program section is given by difference bet

Identify state as shifting register content to left by 1 bit, Shifting a re...

Shifting a register content to left by one bit position is equivalent to ? Ans. Multiplication by two is equivalent while shifting register content to left by one bit position.

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