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 the program invisible registers, What are program invisible registe...

What are program invisible registers? Global and local descriptor tables are found in memory system. In order to specify and access the address of these tables, program invisi

Difference between visual check and parity check, Difference between Visual...

Difference between Visual check and Parity check Visual check This is checking for errors by comparing entered data with original document (NOTE: this is not the same as

Moral and ethical implications, • Moral and Ethical Implications o Will ...

• Moral and Ethical Implications o Will this be safe to have on the road    Will the computers on board be able to handle extreme circumstances • Hazardous conditions o Ex

Ascii characters, Display how the value ASCII "MIRIAM" is stored in memory ...

Display how the value ASCII "MIRIAM" is stored in memory in Big Endian format starting at location 100 hexadecimal. Suppose that each memory location kept two ASCII characters.

What is the role of a controller in an mvc application, The controller resp...

The controller responds to user interactions, with the application, by selecting the act method to implement and also selecting the view to render.

Discuss the classifications of switching systems, Discuss the classificatio...

Discuss the classifications of switching systems. The categorizations of switching systems are specified in the block diagram given below:

Example of prolog, Example of Prolog: We can say that this is also tru...

Example of Prolog: We can say that this is also true if there are four even numbers. Now we have our first rule: • If there are three or four even numbered cards, such play

Difference between reply-to and return-path , What is the difference betwee...

What is the difference between Reply-to and Return-path in the headers of a mail function? Ans) Reply-to: Reply-to is where to deliver the respond of the mail. Return-pat

Vliw architecture, Vliw Architecture Superscalar architecture was desig...

Vliw Architecture Superscalar architecture was designed to develop the speed of the scalar processor. But it has been realized that it is not easy to execute as we discussed pr

What are drawbacks of electronic data interchange processes, What are the d...

What are the drawbacks of Electronic Data Interchange processes? Disadvantages of EDI processes are given below: 1. The X12 standard is so huge and general 2. Electron

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