School project (c++ Inventory management program) - c++

Question

I recently started working on a project. The task is the following:
Write a program to keep a list of available items in a sports goods store. For each item, the following information must be stored: Name, Manufacturer, Price, Available items. The program should support the following features, as a text menu from which the user can choose:
• Enter a new item in the list
• Search by Manufacturer of an item
• Sort items in the list by Name
• Display the current content of the list
I was advised this on another topic:
1) For the menu, you would make a function that displays the information and returns the input after verifying that it's a valid input. You can use pass by reference. Don't bother about functions if you haven't learn it yet. Then just use switch case like you said.
2) For adding an item, (again make a function if you have learnt about it) make a temporary ITEMS object and ask the user for the various required inputs like price and then directly read the inputs into the object (eg. cin >> object.price). After getting all information, simply push the object into the vector we had.
3) For searching by Manufacturer's name you simple need to compare the given name with the manufacturer's name from each element of the vector.
4) Sort the elements of the vector based on their name parameter.
5) Simply print out all parameters of each element in the vector.
I will create a vector after learning more about them, and I will enter below the code which I have written so far. My questions here is should i follow the five tips on top or not. If you think I should not, please share your insights with different suggestions. I know this topic will probably be closed because I did read all the rules but still some information could be crucial. Thanks in advance and I'm sorry if this essay of mine has been time-consuming.
#include <iostream>
#include <conio.h>
#include <string.h>
#include <dos.h>
#include <vector>
using namespace std;
struct articles
{
char name[20];
char manufacturer[15];
double price;
char available;
};
int main()
{
int choice;
do
{
cout << ("\n ##################################################");
cout << ("\n # Menu #");
cout << ("\n # 1.Enter new article #");
cout << ("\n # 2.List of manufacturers of articles #");
cout << ("\n # 3.Sort articles by name #");
cout << ("\n # 4.Display the current content of the list #");
cout << ("\n # 5. End of program #");
cout <
< ("\n ##################################################") << endl;
cin >> choice;
switch (choice)
{
case 1:
articles newart;
cout << ("Enter a name: ");
cin >> (newart.name);
cout << ("Enter a manufacturer: ");
cin >> (newart.manufacturer);
cout << ("Enter a price: ");
cin >> (newart.price);
cout << ("Enter if its available (y/n): ");
cin >> (newart.available);
cout << ("The new article you've created is the following: \n");
cout << newart.name << endl;
cout << newart.manufacturer << endl;
cout << newart.price << endl;
cout << newart.available << endl;
break;
/* case 2:
//code
break;
case 3:
//code
break;
case 4:
//code
//extra information about the mode and the controller
break;
case 5:
cout << "End of Program.\n";
break;
*/
default:
cout << "Not a Valid Choice. \n"
<< "Choose again.\n";
break;
}
}while (choice != 5);
return 0;
}