Question

This is in C.

4.19 (Calculating Sales) An online retailer sells five different products whose retail prices are shown in the following table: Product number Retail price $ 2.98 $ 4.50 $9.98 $ 4.49 $6.87 Write a program that reads a series of pairs of numbers as follows: a) Product number b) Quantity sold for one day Your program should use a switch statement to help determine the retail price for each product. Your program should calculate and display the total retail value of all products sold last week. Entering -1 for product number should indicate you are done entering the product numbers.

Answer 1

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#include<stdio.h>

int main(){

int prod_no, quantity;

int prod1_qty=0, prod2_qty=0, prod3_qty=0, prod4_qty=0, prod5_qty=0;

double prod1_sales=0, prod2_sales=0, prod3_sales=0, prod4_sales=0, prod5_sales=0;

double total = 0.0;

printf("Please enter the product number between 1 and 5. -1 to end: ");

scanf("%d", &prod_no);

while(prod_no!=-1){

printf("Please enter quantity sold: ");

scanf("%d", &quantity);

switch(prod_no){

case 1:

prod1_qty += quantity;

prod1_sales += quantity*2.98;

break;

case 2:

prod2_qty += quantity;

prod2_sales += quantity*4.50;

break;

case 3:

prod3_qty += quantity;

prod3_sales += quantity*9.98;

break;

case 4:

prod4_qty += quantity;

prod4_sales += quantity*4.49;

break;

case 5:

prod5_qty += quantity;

prod5_sales += quantity*6.87;

break;

}

printf("Please enter the product number between 1 and 5. -1 to end: ");

scanf("%d", &prod_no);

}

total = prod1_sales + prod2_sales + prod3_sales + prod4_sales + prod5_sales;

printf("Product\t\tQty\tSales\n");

printf("Product 1:\t%d\t%.2f\n", prod1_qty, prod1_sales);

printf("Product 2:\t%d\t%.2f\n", prod2_qty, prod2_sales);

printf("Product 3:\t%d\t%.2f\n", prod3_qty, prod3_sales);

printf("Product 4:\t%d\t%.2f\n", prod4_qty, prod4_sales);

printf("Product 5:\t%d\t%.2f\n", prod5_qty, prod5_sales);

printf("\nTotal\t: %.2f\n", total);

return 0;

}

nagarajuanagaraju-Vostro-3550:10022020$ gcc sales. nagarajuanagaraju-Vostro-3550: 10022020$ ./a.out Please enter the product number between 1 and 5. -1 to end: 1 Please enter quantity sold: 2 Please enter the product number between 1 and 5. -1 to end: 2 Please enter quantity sold: 3 Please enter the product number between 1 and 5. -1 to end: 3, Please enter quantity sold: 4 Please enter the product number between 1 and 5. -1 to end: 4 Please enter quantity sold: 5 Please enter the product number between 1 and 5. -1 to end: 5 Please enter quantity sold: 6 Please enter the product number between 1 and 5. -1 to end: 1 Please enter quantity sold: 3 Please enter the product number between 1 and 5. -1 to end: 2 Please enter quantity sold: 4 Please enter the product number between 1 and 5. -1 to end: 3 Please enter quantity sold: 5 Please enter the product number between 1 and 5. -1 to end: 4 Please enter quantity sold: 6 Please enter the product number between 1 and 5. -1 to end: 5 Please enter quantity sold: 7 Please enter the product number between 1 and 5. -1 to end: -1 Product Sales Product 1: 14.90 Product 2: 31.50 Product 3: 9 89.82 Product 4: 49.39 Product 5: 89.31 Qty Sales 11 13 Total : 274.92