This document contains code for a program that calculates the total price and discount of two products purchased. It prompts the user to enter their name and details of two products including name, quantity, and price of each. It then calculates the total price by multiplying quantity by price for each product and adding them together. Finally it calculates a 10% discount on the total and prints out the total price and discount amount. The code uses scanf to input values and printf to output results to the user.

1. PBL8.1
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2. PBL 8.1
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http://www.lks.ac.th/kuanjit/

3. scanf.htm
http://ba.hcu.ac.th/Elearnin
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scanf ( )
#include <stdio.h>
#include <conio.h>
main()

4. {
float x1,P1,total,x2,P2,discount;
char product1[10],name[10],product2[10];
printf("nEnter your namet:t");
scanf("%s",name);
printf("nProduct1t:t");
scanf("%s",product1);
printf("nUnit1tt:t");
scanf("%f",&x1);
printf("nPrice1tt:t");
scanf("%f",&P1);
printf("n+++++++++++++++++++++++++n");
printf("nnProduct2t:t");
scanf("%s",product2);
printf("nx2tt:t");
scanf("%f",&x2);
printf("nP2tt:t");
scanf("%f",&P2);
total=((x1*P1)+(x2*P2));
discount=(total*.10);
printf("n+++++++++++++++++++++++++nn");
printf("Total Price ==>t:t%.2f",total);
printf("n+++++++++++++++++++++++++nn");
printf("ndiscount 10% ==>t:t%.2f",discount);
getch();

5. }