Choose the correct answer for the question below: A greedy algorithm for a given problem:

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
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Choose the correct answer for the question below:

A greedy algorithm for a given problem:


1.Always makes the choice that results in the most efficient space complexity
 
2.Always makes a locally-optimal choice in the hope that this choice will lead to a globally optimal solution, and never goes back to reverse the decision.
 
3.Always makes a locally-optimal choice but goes back and re-selects the same element in case the choice was sub-optimal.

4.Always makes the choice that results in the most efficient time complexity

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