On a certain island there are only two types of people: Knights and Knaves. Every person on the island is either is a Knight or a Knave, an no one is both. When the people on the island speak, the following rules hold: Knights always tell the truth. Knaves always lie. There are two native islanders standing next to each other. One is named Claire and the other is named Desmond. You do not know what type either of them are. Claire suddenly says, “We are both Knights”. After this, Desmond says “Either Claire is a Knight or I am a Knight, but we are not both Knights.” What is Claire? Is it possible to determine what Desmond is?

On a certain island there are only two types of people: Knights and Knaves. Every person on the island is either is a Knight or a Knave, an no one is both. When the people on the island speak, the following rules hold: Knights always tell the truth. Knaves always lie. There are two native islanders standing next to each other. One is named Claire and the other is named Desmond. You do not know what type either of them are. Claire suddenly says, “We are both Knights”. After this, Desmond says “Either Claire is a Knight or I am a Knight, but we are not both Knights.” What is Claire? Is it possible to determine what Desmond is?

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter10: Classes And Data Abstraction

Section: Chapter Questions

Problem 14PE

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Exercise 4

There are two native islanders standing next to each other. One is named Claire and the other is named Desmond. You do not know what type either of them are. Claire suddenly says, “We are both Knights”. After this, Desmond says “Either Claire is a Knight or I am a Knight, but we are not both Knights.”

What is Claire? Is it possible to determine what Desmond is?

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