Question

Help

can you do this?

C programming

Overview

In this program, you will be taking product information in from a file, taking in sales information from a file, and calculating the new inventory quantity. Your program should also output the inventory information to a new file at the user's request.

Requirements:

Take in via command line arguments the names of the product info and sales files. Read in the information into an array of structures and a 2d array respectively. Calculate the remaining inventory based upon the number of items sold, and print a report. Finally, ask the user if they would like to output the information to a new file. If so, the output file should have the same format as the input product info file.

File Format

Product Info

Row 1: Number of products

Rows 2+: Product Name

Rows 3+: Quantity, MSRP, Sale Price

4

Mountain Dew 12

pack 50 4.99 3.99

Doritos 172 3.99 375

iPhone 11 43 699.99 699.99

Thin Mints 73 4 3.99

Sales

Row 1: Number of sales

Rows 2+: Number sold for each product

5

2 2 0 0

1 3 0 0

0 0 1 0

0 1 0 3

1 0 0 0

In the above file example, there were file sales. The columns represent each of the four products from this sample.

Answer 1

I have attached the code and screenshots, please have a look. I have commented the code.

----------------------------------------------------product_info.txt---------------------------------------------------------------------------------

4
Mountain Dew 12 pack
50 4.99 3.99
Doritos
172 3.99 3.75
iPhone 11
43 699.99 699.99
Thin Mints
73 4 3.99

----------------------------------------------------------product_info.txt screenshot-------------------------------------------------

-------------------------------------------------------sales_info.txt--------------------------------------------------------------------------

5
2 2 0 0
1 3 0 0
0 0 1 0
0 1 0 3
1 0 0 0

--------------------------------------------------------sales_info.txt screenshot--------------------------------------------------------

--------------------------------------------------------main.c----------------------------------------------------------------------

#include <stdio.h>
#include <stdlib.h>

//struct for product_info
struct product_info
{
char prod_name[50];
int quantity;
float msrp;
float sale_price;
int remaining_inventory;
};

int main(int argc, char** argv)
{
if(argc < 3) // Check for command line arguments
{
printf("Run as ./a.out product_info.txt sales_info.txt\n");
exit(1);
}
int number_of_products;   
char temp[100];
FILE *inpfile;
inpfile = fopen(argv[1],"r"); // Reading the input file
fscanf(inpfile, "%d", &number_of_products); // first line in product info file contains, Number of products
fgets(temp, 100, inpfile); //goto next line

struct product_info products[number_of_products]; // create array of structures

for(int i = 0; i<number_of_products; i++)
{
fgets(products[i].prod_name, 50, inpfile); //Get productname from line
fscanf(inpfile, "%d %f %f", &products[i].quantity, &products[i].msrp, &products[i].sale_price); //Get Quantity, MSRP, Sale Price
fgets(temp, 100, inpfile); //goto next line
}

int number_of_sales;
inpfile = fopen(argv[2],"r"); // Reading the input file
fscanf(inpfile, "%d", &number_of_sales); // first line in sales info file contains, Number of sales
fgets(temp, 100, inpfile); //goto next line

int sales_quantity[number_of_sales][number_of_products]; // create 2d array of sales quantity

for(int i = 0; i<number_of_sales; i++)
{
for(int j = 0; j<number_of_products; j++)
{
fscanf(inpfile, "%d", &sales_quantity[i][j]); // write to 2d array from file
}
fgets(temp, 100, inpfile); //goto next line
}

for(int j = 0; j<number_of_products; j++) // Calculating remaining inventory Column wise
{
int sold = 0;
for(int i = 0; i<number_of_sales; i++)
{
sold = sold + sales_quantity[i][j];
}
products[j].remaining_inventory = products[j].quantity - sold;
}
int flag = 0;
printf("\n Do you want to create inventory file (Enter 1 if Yes, 0 if No):");
scanf("%d", &flag);

if(flag == 1)
{
FILE *outfile ;
outfile = fopen("inventory_info.txt", "w") ; // Creating output file
fprintf(outfile,"%d\n", number_of_products);
for(int i = 0; i<number_of_products; i++)
{
   fprintf(outfile,"%s", products[i].prod_name);
   fprintf(outfile,"%d %f %f\n", products[i].remaining_inventory, products[i].msrp, products[i].sale_price);
}
printf("inventory_info.txt created successfully\n");
}
return 0;
}

------------------------------------------------------main.c screenshots----------------------------------------------------------

---------------------------------------------------------inventory_info.txt-----------------------------------------------------------------------

4
Mountain Dew 12 pack
46 4.990000 3.990000
Doritos
166 3.990000 3.750000
iPhone 11
42 699.989990 699.989990
Thin Mints
70 4.000000 3.990000

-------------------------------------------------inventory_info.txt screenshot---------------------------------------------------

------------------------------------------------------console screenshot-----------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------

I hope this will help you. Please feel free to comment.