?
Solved

Linked List

Posted on 2006-07-04
3
Medium Priority
?
2,458 Views
Last Modified: 2013-12-14
create a Linked list to represent the following polynomial
3*x^2*y   +   9x*y^3   +   15*x*y   +  3

I not able to figure out how to proceed with this question...


0
Comment
Question by:sinha_anshul26
3 Comments
 
LVL 39

Accepted Solution

by:
itsmeandnobodyelse earned 600 total points
ID: 17040555
>>>> I not able to figure out how to proceed with this question...

You need to parse the given algorithm, extracting each token. You should get a list like

3  number
*  mul
x  variable
^  pow
*  number
y  variable
+  add


The first column type is string cause you might get names and/numbers.

The second could be a enum, e. g.

  enum MathToken { NUMBER, VARIABLE, MUL, POW, ADD, ... };

Any 'row' of the above list can be set to a new item, combining both attributes:

  struct Token
  {
        string        value;
        MathToken token;
  };

Then, you may put the items to a linked list, e. g.

   list<Token> polynomial;

e. g. by using std::list  which you get by

 #include <list>
 using namespace std;

Regards, Alex






0
 
LVL 17

Assisted Solution

by:rstaveley
rstaveley earned 200 total points
ID: 17040573
I guess you can express each term of the polynomal as a node in a linked list. The coefficient and x and y exponents as members.

e.g.

struct Term {int coeff;int xexp;int yexp;}
typedef std::list<Term> Polynomial;

However, I expect you aren't allowed to use the standard library for your linked list in your assignment.
0
 
LVL 5

Assisted Solution

by:dennis_george
dennis_george earned 200 total points
ID: 17040637
0

Featured Post

Learn to develop an Android App

Want to increase your earning potential in 2018? Pad your resume with app building experience. Learn how with this hands-on course.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
How to install Selenium IDE and loops for quick automated testing. Get Selenium IDE from http://seleniumhq.org Go to that link and select download selenium in the right hand column That will then direct you to their download page. From that p…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.

601 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question