You are given n balls arranged in a row. Each ball i has a value v;. Give a polynomial time algorithm to pick a maxi- mum value subset S of the balls so that no three consecutive balls are in S. For example, say the ball values are 2 2 3 2 2 then, the maximum value subset has the first, second, fourth and the fifth ball, and their total value is 2+ 2+2+2 = 8. For this problem, you also need to write a proof of correctness of the recurrence.
You are given n balls arranged in a row. Each ball i has a value v;. Give a polynomial time algorithm to pick a maxi- mum value subset S of the balls so that no three consecutive balls are in S. For example, say the ball values are 2 2 3 2 2 then, the maximum value subset has the first, second, fourth and the fifth ball, and their total value is 2+ 2+2+2 = 8. For this problem, you also need to write a proof of correctness of the recurrence.
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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Transcribed Image Text:4 No three in a row
You are given n balls arranged in a row. Each ball i has a
value v;. Give a polynomial time algorithm to pick a maxi-
mum value subset S of the balls so that no three consecutive
balls are in S.
For example, say the ball values are
2 2 3 2 2
then, the maximum value subset has the first, second, fourth
and the fifth ball, and their total value is 2+2+ 2+2 = 8.
For this problem, you also need to write a proof
of correctness of the recurrence.
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