Question: A string is repeat - free if non - empty prefixes of the string does not occur in the rest of the string. That is

A string is repeat-free if non-empty prefixes of the string does not occur in the rest of the string. That is, w is repeat-free if for all x, y, if xy = w then x does not occur in y.
How many prefix-free strings of length n are there for each of the following alphabets? Show your work.
The binary alphabet {0,1}
Theternaryalphabet{0,1,2}

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

B. Write a prograam called EditDistance.java or editdistance.py that implements the edit distance algorithm discussed in the textbook. Your program takes as input two strings given as command line...

Q:

*NEED HELP ASAP PLEASE* NOTE: USER MUST INPUT THE TWO STRINGS IN COMMAND LINE! B. Write a prograam called EditDistance.java or editdistance.py that implements the edit distance algorithm discussed in...

Q:

Please help me on this assignment! It's Java! Create a new class called Lab18GOM that is extended from JFrame. Make sure you store it in a file called Lab18GOM.java Enter your personal information at...

Q:

LABORATORY: OSCILLATIONS AND WAVES Objectives: 0 to investigate the relationship between the mass attached at the end of a spring, the spring constant, and the resulting stretching of the spring. 0...

Q:

Python and most Python libraries are free to download or use, though many users use Python through a paid service. Paid services help IT organizations manage the risks associated with the use of...

Q:

creating a uml diagram using java doc creating a linkedstring construtor object/ chat array jes/project2.pdt Part IV: Project description Project 2 ADT Character String Implement the ADT character...

Q:

Lesson 12 Quiz (Show/Explain all Work) IST 230 Relations on Sets, Databases 1. Let A = {0, 1, 2, 3, 4, 5, 6, 7, 8} and B = {1, 2, 3, 4, 5, 6, 7, 8}. Now let R be a binary relation R from A to B such...

Q:

Hi, I'm having a really tough time with writing Simulation. java. All the files needed for the assignment are in the instructions below, including example input ex1 and example outputs ex1.rpt and...

Q:

case study: Chipotle maxican grill in 2016. minimum 7 page analysis., power point presentation 8 slides . 24, by 11 PM. The drop box for this assignment will be provided in the week 8 folder. You...

Q:

import junit.framework.TestCase; /***************************************************************************** * A Song is a sequence of Note objects. * The song can have a special "current...

Q:

Watchdog Company maintains and repairs warning lights, such as those found on radio towers and lighthouses. Watchdog Company prepared the end-of-period spreadsheet shown below at July 31, 2014, the...

Q:

Cyclops Company has its own research department. However, the company purchases patents from time to time. The following is a summary of transactions involving patents now owned by the company....

Q:

The geometric average of - 1 0 % , 1 0 % and 2 0 % is _ _ ? Answer as a percentage and round answer to two decimal places

Q:

Which of the following are problems with identifying users of ABC? Multiple select question. ABC means different things to different organizations. Organizations will announce the discontinuance of...

Q:

Employ effective vocal cues Employ effective visual cues

Q:

3 Might there be some middle ground? Could you adjust the topic to focus on verifiable facts? For example, you could investigate whether banning dogs would lower the insurance premiums paid by the...

Q:

Clearly transitions help to clarify messages and keep them flowing in oral and written forms of communication. But do transitions function similarly in mediated communication contexts? For example,...