Binary search, Computer Engineering

Assignment Help:

Binary Search

Now that the basic framework is working, it is time to begin implementing a few alternative search functions. Each of these search algorithms have strengths and weaknesses, depending on the distribution of the input and the search keys used. The classic solution to this problem is binary search. Binary search is a divide-and-conquer algorithm. See Levitin [2007] pp 162 for a detailed description of this algorithm.

ALGORITHM BinarySearch (A[0 . . . n - 1], k)
// Non-recursive binary 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: l ← 0; r ← n - 1
2: while l ≤ r do
3: m ← ⌊(l + r)/2⌋
4: if A[m] = k then
5: return m
6: else if k < A[m] then
7: r ← m- 1
8: else

9: l ← m+ 1

10: return -1

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


Related Discussions:- Binary search

Explain program source code, Q. Explain Program Source Code? Program S...

Q. Explain Program Source Code? Program Source Code  Every assembly language statement appears as: {identifier}  Keyword {{parameter},}  {;comment}.   Element of a

Explain virtual packets, Explain Virtual Packets. The router can't tran...

Explain Virtual Packets. The router can't transfer a copy of a frame from one kind of network to other since the frame formats be different. More significantly, the router cann

is risc always fast, It is fast because it has got separate program and da...

It is fast because it has got separate program and data memory(highly pipelined architecture)

Illustrate does gas have density, Q. Illustrate does gas have density? ...

Q. Illustrate does gas have density? Answer:- Gas in addition to everything in the universe has density though some densities are not either too high or too low to be dete

Microprocessor, can i get the comparison of microprocessors architecture?

can i get the comparison of microprocessors architecture?

Real life decoding, We have not considered the time element in our decoding...

We have not considered the time element in our decoding. An important time for decoding is the time from the address strobe (AS) to when the data is required in a read.   Time

Define refresh circuits, Define Refresh Circuits? It is a circuit which...

Define Refresh Circuits? It is a circuit which make sure that the contents of a DRAM are maintained when every row of cells are accessed periodically.

What are the disadvantages of public key cryptography, What are the disadva...

What are the disadvantages of Public Key Cryptography? Disadvantages of Public Key Cryptography are as given below: a) It is used to encrypt a secret key that is used to e

.master-slave flip flop, JK, SR, D master FF 1)draw block diagram 2) combin...

JK, SR, D master FF 1)draw block diagram 2) combinational circuits using NOR & NAND gate thank you

What is core dump, Raises when accessing an unassigned memory location acce...

Raises when accessing an unassigned memory location accessing a null pointer

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