B1 Write a function NearestPoint (G,v,mylist) which takes as input a networkx object G representing a weighted graph, an object v which will be a node of G, and a list mylist of some other nodes of G. The function should return whichever node in mylist is nearest to v (in the sense of the minimum weight path from v). In the event of a tie, it should return the nearest node which appears earliest in mylist. CORDELIA WEBB UNIVERSITY OF LEEDS, 2023/24 B2 We say that a weighted graph has the Unique Weight Prop- erty (UWP) if no two edges have the same weight. Recall from Workshop 9-10 that if G is connected and has the UWP then it will automatically have a unique spanning tree. Write a func- tion UWP (G) which tests whether or not G has the UWP and returns True or False accordingly. Hint: extract a list of edge-weights and use the count func- tion to see how many times each appears. B3 Write a function GoodPath (G,a,b) which takes as input a net- workx object G representing a connected weighted graph with UWP and objects a, b which will be nodes of G. Your function should return True if the shortest path from a to b lies entirely inside the unique minimal connector and False otherwise.
B1 Write a function NearestPoint (G,v,mylist) which takes as input a networkx object G representing a weighted graph, an object v which will be a node of G, and a list mylist of some other nodes of G. The function should return whichever node in mylist is nearest to v (in the sense of the minimum weight path from v). In the event of a tie, it should return the nearest node which appears earliest in mylist. CORDELIA WEBB UNIVERSITY OF LEEDS, 2023/24 B2 We say that a weighted graph has the Unique Weight Prop- erty (UWP) if no two edges have the same weight. Recall from Workshop 9-10 that if G is connected and has the UWP then it will automatically have a unique spanning tree. Write a func- tion UWP (G) which tests whether or not G has the UWP and returns True or False accordingly. Hint: extract a list of edge-weights and use the count func- tion to see how many times each appears. B3 Write a function GoodPath (G,a,b) which takes as input a net- workx object G representing a connected weighted graph with UWP and objects a, b which will be nodes of G. Your function should return True if the shortest path from a to b lies entirely inside the unique minimal connector and False otherwise.
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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