Padovan string, Programming Languages

Assignment Help:

Padovan String

Problem Description


A Padovan string P(n) for a natural number n is defined as:

P(0) = 'X'

P(1) = 'Y'

P(2) = 'Z'

P(n) = P(n-2) + P(n-3), n>2
where + denotes string concatenation.
For a string of the characters 'X' , 'Y' and 'Z' only, and given value of n, write a program that counts the number of occurrences of the string in the n-th Padovan string P(n).


An example is given below.

For n = 6 and the string ZY, the program should count the occurrences of ZY in P(6).

P(0) = 'X'

P(1) = 'Y'

P(2) = 'Z'

P(n) = P(n-2) + P(n-3), n>2


P(3) = P(1)+P(0)

P(3) = YX


P(4) = P(2)+P(1)

P(4) = ZY


P(5) = P(3)+P(2)

P(5) = YXZ


P(6) = P(4)+P(3)

P(6) = ZYYX

So, the number of occurrences of the string ZY in P(6) is 1.

Instruction to work with Open PBT Client:

  1. Specify the work directory path in the 'Work directory Path' field. The path should correspond to your solution Work directory.
  2. Download the support files by clicking the Get Dev Files.
  3. You will find the problem directories containing:
    • problem.h file
    • problem.c file

in your project directory.

  1. Code the solution in .c file inside the problem directory
  2. All required files will be downloaded to your work directory. Creating additional files is strongly discouraged.

Step 1:

In your Solution File:

  • Implement your logic in function int stringOccurrences(int n, char* str)
  • int   n :n is an integer represents n(th) for which full main string has to formed, from which occurrence of string str has to be found.
  • char*    str :str is a string represents sub string whose occurrence has to be found in the main string.
  • You can create more functions if required, but those functions should be in the same file.

 

Step 2:

In your solution keep in mind the following constraints:.

  1. In this problem you have to write a program that counts the number of occurrences of the string in the n-th Padovan string P(n).
  2. Padovan formula is P(n) = P(n-2) + P(n-3) where n>2 and n is the integer.
  3. In the above Padovan formula + sign means string concatenation.
  4. For the Padovan formula value of P(0),P(1) and P(2) is given. You have to use those value only.
  5. n should not be greater than 40 otherwise return -1
  6. string str should be consist of only X,Y and Z in upper case otherwise return -1

The Prototype of the function is

int stringOccurrences(int n, char* str)
This function takes following arguments.

  • n is the value for which full main string has to formed, from which occurrence of string str has to be found.
  • str represents sub string whose occurrence has to be found in the main string.
  • This function returns a number of occurrence of string str in the main string.

The constraints are:

  1. n should not be greater than 40 otherwise return -1
  2. string str should be consist of only X,Y and Z in upper case otherwise return -1

Example 1

Input


int n = 6
string str = ZY

Output


1

Explanation : This question is explained in problem description.

Example 2

Input


int n = 6
String str = ZYmm

Output


-1

Explanation :
String str is containing character other than X, Z and Y.

Example 3

Input


int n = 8
String str = XZ

Output


1

For C solutions

Header File

:

padovanstring.h

Function Name

:

int stringOccurrences(int n, char* str)

File Name

:

padovanstring.c

For C++ solutions

Header File

:

padovanstring.h

Class Name

:

PadovanString

Function Name

:

int stringOccurrences(int n, char* str)

File Name

:

padovanstring.c

General Instructions

    *

The file / class names, functions, method signatures, header files are to be used as mentioned in the problem statement. Do not use your own names or change the method signatures and fields. You can add any number of additional methods.

    *

For C solutions, change the value of "C_OR_CPP" macro in header file as 1 and for C++ solutions change the value as 2.

    *

In case of iostream.h specify as iostream only.

    *

Command line options for the main() function are not supported currently.


Related Discussions:- Padovan string

What is linear programming problem, QUESTION 1 (a) (i) What is linear p...

QUESTION 1 (a) (i) What is linear programming problem? (ii) Define and explain the following terms: (1) objective function, (2) decision variable, (3) constraints, (4) feasi

Mobile application in android platform phones, Recent problems in finishing...

Recent problems in finishing implementation: This mobile application is built with Sencha Touch framework. Source code is attached in this zip package. The daily rest calc

Java virtual machine, Expertsmind.com is expert in java assignment help ...

Expertsmind.com is expert in java assignment help JAVA Virtual Machine A Java exclusive device or java virtual machine (JVM) is an exclusive device able of undertaking Jav

New features of visual studio 2008, New Features of Visual Studio 2008 1. L...

New Features of Visual Studio 2008 1. LINQ Support LINQ primarily is the structure of many conventional question employees that allow you to perform with information in a more user

Wap for intelligent agent able to play block dominoes game, Objective: ...

Objective: In a programming language of your choice, write an intelligent agent able to play block Dominoes against a player. Together with this assignment you will find two pa

Write the html code to bind this xml data, Question: (a) (i) Describe w...

Question: (a) (i) Describe what an XML Data Island is and outline the restrictions of using a Data Island. (ii) The following XML file book.xml is used to keep track of a l

Classroom management, A partly completed project Cwk 4-students is availabl...

A partly completed project Cwk 4-students is available for downloading from Studynet Assignments. You are required to amend this BlueJ project to implement a version of the WHEN sy

Program for adding a course in the website of a university, 1. You are work...

1. You are working as a designer for a university that offers a program in Computer Science. One of the tracts is computer security. One of your colleagues has recommended adding a

Program compares interest rates, 'This program compares interest rates betw...

'This program compares interest rates between two banks and determines the best bank 'Eric Weber, Adam Litchfield, Eric Romero, Sarah, Alex, Amy '10/5/12 'Lab #4 Problem 42 'CSC

Linux Lab Assignments, I have a linux lab class that consist of 1 lab assig...

I have a linux lab class that consist of 1 lab assignment per week for 5 weeks. It is an online virtual lab and is fairly easy, I just don''t have the time.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd