Question

Suppose we are writing a C++ program for the sales department of a small company. The department has 4 sales person and is selling 5 products. The program will allow the input of each sale made (sales person, product, sales amount). The program will also allow a user to see the sales made by a particular sales person or the sales on a particular product.

Requirement of the Program:

1. Using a 2-D array as a data structure for storing the sales information

2. Containing a menu that allows a user to

1. Enter a sale
2. Check the sales made by a sales person
3. Check the sales on a product
4. Exit the program

Here is a sample run of the program:

Answer 1

Answer : Given data

CODE

#include<iostream>
using namespace std;

//function to enter sales
void Enter_sale(int sales[5][4])
{
   //variables
   int product,person,sale_amount;
  
   cout<<"1. Product 1 \n2. Product 2 \n3. Product 3 \n4. Product 4 \n5. Product 5 \n";
  
   //prompt for product
   cout<<"Enter Product: ";
   cin>>product;
  
   cout<<"1. Sales Person 1 \n2. Sales Person 2 \n3. Sales Person 3 \n4. Sales Person 4 \n";
  
   //prompt for sales
   cout<<"Enter Sales Person: ";
   cin>>person;
  
   //prompt for sales amount
   cout<<"Enter Sales Amount: ";
   cin>>sale_amount;
  
   //adding to previous total sales amount
   sales[product-1][person-1]=sales[product-1][person-1]+sale_amount;
}

//function to check sales by a person
void Check_salesperson(int sales[5][4])
{
   int person,total=0;
   cout<<"1. Sales Person 1 \n2. Sales Person 2 \n3. Sales Person 3 \n4. Sales Person 4 \n";
  
   //prompt for person
   cout<<"Enter Sales Person: ";
   cin>>person;
  
   if(person>=1 && person<=4)
   {
       //printing details of sales by a person
       cout<<"Details of Sales \n";
       for(int i=0;i<5;i++)
       {
           cout<<"Product "<<i+1<<": "<<sales[i][person-1]<<"\n";
           total=total+sales[i][person-1];
       }
       //printing total sales by a person
       cout<<"Total: "<<total<<"\n";
   }
   else
   {
       cout<<"Error!\n";
   }
}

//function to check sales by a product
void Check_product(int sales[5][4])
{
   int product,total=0;
   cout<<"1. Product 1 \n2. Product 2 \n3. Product 3 \n4. Product 4 \n5. Product 5 \n";
  
   //prompt for product
   cout<<"Enter Product: ";
   cin>>product;
   if(product>=1 && product<=5)
   {
       //printing details of sales on a product
       cout<<"Details of Sales \n";
       for(int i=0;i<4;i++)
       {
           cout<<"Sales Person "<<i+1<<": "<<sales[product-1][i]<<"\n";
           total=total+sales[product-1][i];
       }
       //printing total sales on a product
       cout<<"Total: "<<total<<"\n";
   }
   else
   {
       cout<<"Error!\n";
   }
}

int main()
{
   int choice;
   int sales[5][4] = {{0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0}};
   while(true)
   {
       //Menu
       cout<<"1. Enter Sales\n2. Check Sales by a Person\n3. Check Sales on a Product\n4. Exit\n";
      
       //choice
       cin>>choice;
       switch(choice)
       {
           //if enter sales
           case 1:
               Enter_sale(sales);
               break;
           //if check sales by a person
           case 2:
               Check_salesperson(sales);
               break;
           //if check sales on a product
           case 3:
               Check_product(sales);
               break;
           //if exit
           case 4:
               exit(0);
           //if wrong choice
           default:
               cout<<"Error!\n";
               break;
       }
   }
}

OUTPUT

CODE SCREEN SHOT

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