Q: Consider the following algorithm Algo-X that takes an array A of n numbers and explain working of this algorithm: ALGO-X(A)ALGO-XR(A, t, i, r)1 return ALGO-XR(A, 0, 1, 2)1 while i s A. length2if r -- 03if A[i] =- t4return TRUEelse if ALGO-XR(A, t – A[i), i + 1,r – 1)return TRUEi - i+18 return FALSE7

Explanation: The algorithm ALGO-X(A) accepts an array A of size n and calls another algorithm…

ALGO-XR(A, t, i, r) 1 while i s A. length 2 ALGO-X(A) 1 return ALGO-XR(A, 0, 1,2) if r--0 if A[i] -- t 3 4 5 return TRUE else if ALGO-XR(A, t – A[i], i + 1,r – 1) return TRUE i - i+1 8 return FALSE 7

ALGO-XR(A, t, i, r) 1 while i s A. length 2 ALGO-X(A) 1 return ALGO-XR(A, 0, 1,2) if r--0 if A[i] -- t 3 4 5 return TRUE else if ALGO-XR(A, t – A[i], i + 1,r – 1) return TRUE i - i+1 8 return FALSE 7

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Fundamentals of Multithreaded Algorithms

An algorithm that executes a single instruction in a uniprocessor system is called a serial algorithm. In the case of a multiprocessor computer system, a multiprocessor computer can execute multiple instructions in parallel. A multithreaded algorithm is an algorithm that enables multiple instances of the code to be executed concurrently.Multithreading is a concept that allows the CPU to execute threads independently while sharing similar resources. It is an important CPU feature that works on the process. Thread is a sequence of instructions that executes in parallel with other threads. Because of multithreading, multiple tasks can be performed within a single process, making the execution faster.

Question

Q: Consider the following algorithm Algo-X that takes an array A of n numbers and explain working of this algorithm:

ALGO-X(A)
ALGO-XR(A, t, i, r)
1 return ALGO-XR(A, 0, 1, 2)
1 while i s A. length
2
if r -- 0
3
if A[i] =- t
4
return TRUE
else if ALGO-XR(A, t – A[i), i + 1,r – 1)
return TRUE
i - i+1
8 return FALSE
7

Process or set of rules that allow for the solving of specific, well-defined computational problems through a specific series of commands. This topic is fundamental in computer science, especially with regard to artificial intelligence, databases, graphics, networking, operating systems, and security.

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