Consider the following game. You are given a sequence of n positive numbers (a1, a2, ...,...
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Consider the following game. You are given a sequence of n positive numbers (a1, a2, ..., ,an). Initially, they are all colored black. At each move, you choose a black number ak and color it and its immediate neighbors (if any) red (the immediate neighbors are the elements ak-1, ak+1). You get ak points for this move. The game ends when all numbers are colored red. The goal is to get as many points as possible. (a) Describe a greedy algorithm for this problem. Verify that it does not always maximize the number of points by giving a counter-example. Consider the following game. You are given a sequence of n positive numbers (a1, a2, ..., ,an). Initially, they are all colored black. At each move, you choose a black number ak and color it and its immediate neighbors (if any) red (the immediate neighbors are the elements ak-1, ak+1). You get ak points for this move. The game ends when all numbers are colored red. The goal is to get as many points as possible. (a) Describe a greedy algorithm for this problem. Verify that it does not always maximize the number of points by giving a counter-example.
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Related Book For
Data Structures and Algorithm Analysis in Java
ISBN: 978-0132576277
3rd edition
Authors: Mark A. Weiss
Posted Date:
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