## Design the system for seller, Data Structure & Algorithms

Assignment Help:

Your program should include three components selling, buying and managing for the use of sellers, buyers and the Manager, respectively. Provide a menu for a user to enter each component.

Selling

When a seller has an item to sell, she/he will first check the catalogue to find a suitable category to place the item. Your program should allow the seller to traverse all  available categories level by level from the root to the leaves. Giving the above catalogue as an example, the program will first show the following root category:

Catalogue:

1 Books

2 Movies, Music and Games

3 Home, Garden and Tools

4 Sports & Outdoors

If the user chooses Option 1, your program will list the content of subcategory -

Books:

Books:
1 Textbooks

2 Audiobooks

3 Magazines

If a user chooses a number which points to a selling item, your program should show the information of the item (expect for the information of maximal discounts). If a user chooses "Add a new category", the program should ask for the title of the category and add it into the catalogue. If the user chooses "Add a selling item", the program should ask for the information of the item and add the item into the catalogue under the current level.

Note that a category can contain either subcategories, selling items or both. For instance, there could be a selling item under Books, which does not belong to any subcategory under this category.

#### Define a procedure called make-avl-tree, This question deals with AVL trees...

This question deals with AVL trees. You must use mutable pairs/lists to implement this data structure: (a) Define a procedure called make-avl-tree which makes an AVL tree with o

#### Explain multidimensional array, Multidimensional array: Multidimensional a...

Multidimensional array: Multidimensional arrays can be defined as "arrays of arrays". For example, a bidimensional array can be imagined as a bidimensional table made of elements,

#### Deletion of any element from the circular queue, Algorithm for deletion of ...

Algorithm for deletion of any element from the circular queue: Step-1: If queue is empty then say "queue is empty" & quit; else continue Step-2: Delete the "front" element

#### Search on a hashed file, Write a program to simulate searching over a hashe...

Write a program to simulate searching over a hashed file, with different assumptions for the sizeof file pages.Write a program to perform equality search operations on the hashed f

#### If-then-else statements, In this example, suppose the statements are simple...

In this example, suppose the statements are simple unless illustrious otherwise. if-then-else statements if (cond) { sequence of statements 1 } else { sequence of st

#### Infix expression to postfix form using the stack function, Q. Convert the f...

Q. Convert the following given Infix expression to Postfix form using the stack function: x + y * z + ( p * q + r ) * s , Follow general precedence rule and suppose tha

#### State flowchart that take temperature input using pseudocode, Write an algo...

Write an algorithm using pseudocode which takes temperatures input over a 100 day period (once per day) and output the number of days when the temperature was below 20C and the num

#### Infix expression into the postfix expression, Q. Convert the given infix ex...

Q. Convert the given infix expression into the postfix expression (also Show the steps) A ∗ (B + D)/ E - F(G + H / k ) Ans. Steps showing Infix to Post fix

#### Algorithms, Data array A has data series from 1,000,000 to 1 with step size...

Data array A has data series from 1,000,000 to 1 with step size 1, which is in perfect decreasing order. Data array B has data series from 1 to 1,000,000, which is in random order.