Solved

Linked List

Posted on 2006-07-04
3
2,449 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 39

Accepted Solution

by:
itsmeandnobodyelse earned 150 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 50 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 50 total points
ID: 17040637
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Programmer's Notepad is, one of the best free text editing tools available, simply because the developers appear to have second-guessed every weird problem or issue a programmer is likely to run into. One of these problems is selecting and deleti…
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
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 be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

726 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