#include #include /* Structure to store students data */ struct Product { char *

Question

#include
#include

/*
Structure to store students data
*/
struct Product {
char *name;
double unit_price;
double sale_vol;
double total_sale;
};

struct Product *readSalesData(int *totalData);
void selection_sort(struct Product a[], int n);
void writeSalesData(struct Product products[], int totalData);

/*
* Entry point
*/
int main() {
struct Product *products;
int totalData = 0;
products = readSalesData(&totalData);

printf("Total: %d ", totalData);
// sorting by sales volume
selection_sort(products, totalData);

// writing to file
writeSalesData(products, totalData);

return 0;
}

struct Product *readSalesData(int *totalData) {
struct Product *products;

FILE *read;

read = fopen("sale.txt", "r");

int i = 0;
products = (struct Product *)malloc(1000 * sizeof(struct Product *));
while (!feof(read)) {

products[i].name = (char *)malloc(20 * sizeof(char));
fscanf(read, "%s %lf %lf", products[i].name, &products[i].unit_price,
&products[i].total_sale);
products[i].sale_vol = products[i].unit_price * products[i].total_sale;

i++;
(*totalData)++;
}
printf("i= %d ", i);
fclose(read);
return products;
}

void writeSalesData(struct Product products[], int totalData) {

FILE *write;

write = fopen("sorted_products.txt", "w");

int i = 0;
while (i < totalData) {
fprintf(write, "%s %lf %lf %lf ", products[i].name, products[i].unit_price,
products[i].total_sale, products[i].sale_vol);

i++;
}
fclose(write);
}

void selection_sort(struct Product a[], int n) {
int i, largest = 0;
if (n == 1)
return;
for (i = 1; i < n; i++) {

if (a[i].sale_vol > a[largest].sale_vol)
largest = i;
}
if (largest < n - 1) {

double temp = a[n - 1].sale_vol;

a[n - 1].sale_vol = a[largest].sale_vol;

a[largest].sale_vol = temp;

double temp_unit_price = a[n - 1].unit_price;
a[n - 1].unit_price = a[largest].unit_price;
a[largest].unit_price = temp_unit_price;

double temp_total_sale = a[n - 1].total_sale;
a[n - 1].total_sale = a[largest].total_sale;
a[largest].total_sale = temp_total_sale;

char *temp_name = a[n - 1].name;
a[n - 1].name = a[largest].name;
a[largest].name = temp_name;
}
selection_sort(a, n - 1);
}

For Mac gcc terminal.(Pravesh Kumar)

Name your program product2.e) so it takes 2. Extra credit (20 points) Modify the program (Name your program product2.c) so it takes command line argument for the product name and the program displays unit price, total numbers of pounds sold, and sale volume of the product. The program should include the following function: void find_product (struct product products[l, int n, char *name); The find_player function should find the product by name, print the product's unit price, total numbers of pounds sold, and sale volume with two decimal digits. Example run: ./a.out grape Output: Name: grape Unit price: 2.25 Number of pounds sold: 393.50 Sale volume: 885.38

Explanation / Answer

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

/*
Structure to store students data
*/
struct Product
{
char *name;
double unit_price;
double sale_vol;
double total_sale;
};

struct Product* readSalesData(int *totalData);
void selection_sort(struct Product a[], int n);
void find_product(struct Product products[], int n, char *name);

/*
* Entry point
*/
int main(int argc, char* argv[])
{
struct Product *products;
int totalData = 0;
products = readSalesData(&totalData);
  
printf("Total: %d ", totalData);
//sorting by sales volume
selection_sort(products, totalData);
  
// searching and printg
find_product(products, totalData, argv[1]);
  
  
return 0;
}

struct Product* readSalesData(int *totalData)
{
struct Product *products;
  
FILE *read;
  
read = fopen("sales.txt", "r");
  
int i=0;
products = (struct Product *)malloc(1000*sizeof(struct Product*));
while(!feof(read))
{
      
       products[i].name = (char *)malloc(20*sizeof(char));
       fscanf(read,"%s %lf %lf", products[i].name, &products[i].unit_price, &products[i].total_sale);
       products[i].sale_vol = products[i].unit_price * products[i].total_sale;
      
       i++;
       (*totalData)++;
}
printf("i= %d ",i);
fclose(read);
return products;
}

void selection_sort(struct Product a[], int n){
int i, largest = 0;
if (n == 1)
       return;
for (i = 1; i < n; i++){

   if (a[i].sale_vol > a[largest].sale_vol)
       largest = i;
   }
   if (largest < n - 1) {

       double temp = a[n-1].sale_vol;   

       a[n-1].sale_vol = a[largest].sale_vol;   

       a[largest].sale_vol = temp;
      
       double temp_unit_price = a[n-1].unit_price;
       a[n-1].unit_price = a[largest].unit_price;
       a[largest].unit_price = temp_unit_price;
      
       double temp_total_sale = a[n-1].total_sale;
       a[n-1].total_sale = a[largest].total_sale;
       a[largest].total_sale = temp_total_sale;
      
       char *temp_name = a[n-1].name;
       a[n-1].name = a[largest].name;
       a[largest].name = temp_name;
   }
selection_sort(a, n - 1);

}

void find_product(struct Product products[], int n, char *name){
   int i;
   for(i=0; i<n; i++){
       if(strcmp(products[i].name, name) == 0){
           printf("Name: %s ", name);
           printf("Unit price: %.2lf ", products[i].unit_price);
           printf("Number of products sold: %.2lf ", products[i].total_sale);
           printf("Sales Volume: %.2lf ", products[i].sale_vol);
       }
   }
  
}

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.