Program in C to demonstrate switch case

Write a program in C to demonstrate switch case

#include <stdio.h>

void main()

{

            int,ch qty;

            long tb,dis,nb;

            clrscr();

            printf("1.BPL\n2.Onida\n3.Sony\n4.Samsung\n5.LG\n");

            printf("\nEnter Your Choice: ");

            fflush(stdin);

            scanf("%d",&ch);

            printf("Enter Qty: ");

            scanf("%d",&qty);

            switch(ch)

            {

                        case 1:tb=(long)qty*10000;

                                    printf("\nBPL is %ld",tb);

                        break;

                        case 2:tb=(long)qty*12000;

                                    printf("\nOnida is %ld",tb);

                        break;

                        case 3:tb=(long)qty*11500;

                                    printf("\nSony is %ld ",tb);

                        break;

                        case 4:tb=(long)qty*11000;

                                    printf("\nSamsung is %ld ",tb);

                        break;

                        case 5:tb=(long)qty*13000;

                                    printf("\nLG is %ld ",tb);

                        break;

                        Default:

                                    printf("Wrong Choice...");

            }

            dis=(tb*10)/100;

            nb=tb-dis;

            printf("\nDiscount is %ld",dis);

            printf("\nNet bill is %ld",nb);

            getch();

}