With reference to Exercise 1, suppose that the set of freeways must include city c or city d (but not necessarily both) and all the other cities. Find the minimum-cost set of freeways. 1. The network below shows the paths to success from L (log cabin) to W (WhiteHouse). The first number is the cost of building a freeway along the edge and thesecond is the number of trees (in thousands) that would have to be cut down.e8, 48, 58, 412, 44, 47, 23, 15, 13, 36, 34, 15, 17, 23, 24, 2Lad4, 2k5, 38, 35, 24, 26, 48, 34, 15, 1b.W7, 26, 35, 56, 2hin

Given, Cost of building freeway along the edges: (L,c)=7, (L,a)=5, (L,b)=8,…

Answered: With reference to Exercise 1, suppose…

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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With reference to Exercise 1, suppose that the set of freeways must include city c or city d (but not necessarily both) and all the other cities. Find the minimum-cost set of freeways.

1. The network below shows the paths to success from L (log cabin) to W (White
House). The first number is the cost of building a freeway along the edge and the
second is the number of trees (in thousands) that would have to be cut down.
e
8, 4
8, 5
8, 4
12, 4
4, 4
7, 2
3, 1
5, 1
3, 3
6, 3
4, 1
5, 1
7, 2
3, 2
4, 2
L
a
d
4, 2
k
5, 3
8, 3
5, 2
4, 2
6, 4
8, 3
4, 1
5, 1
b.
W
7, 2
6, 3
5, 5
6, 2
h
in

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