# My calculation bill of first customer will run into second customer's bill.. Can someone please help me.. Thankyou!!

0 votes
asked Aug 9, 2018
#include<stdio.h>

#include<stdlib.h>

#include<math.h>

#include<ctype.h>

#pragma warning (disable:4996)

#define SST 0.1

#define COMBO_A 10.00

#define COMBO_B 15.00

#define COMBO_C 18.00

#define COMBO_D 24.00

void main()

{

// declare variable

char comboA, comboB, comboC, comboD;

char comboChoices, yesOrNo;

int quantityA = 0, quantityB = 0, quantityC = 0, quantityD = 0;

int customer = 0, totalQuantity;

int quantity = 0;

double price = 0, priceA = 0, priceB = 0, priceC = 0, priceD = 0;

double chargesA = 0, chargesB = 0, chargesC = 0, chargesD = 0;

double total = 0, totalCOMBO = 0, totalSST = 0, totalPAY = 0, ChangeDUE = 0;

double amountPAID = 0, charges = 0;

double  totalSSTCharges, totalAmountCollected;

do {

rewind(stdin);

printf("\n");

printf("       Please choose your COMBO : ");

scanf("%c", &comboChoices);

rewind(stdin);

totalCOMBO = 0;

printf("       Quantity of COMBO %c : ", comboChoices);

rewind(stdin);

scanf("%d", &quantity);

rewind(stdin);

if (toupper(comboChoices) == 'A') {

printf("\n");

priceA = COMBO_A * quantity;

printf("       Combo A : %d * RM%.2f = RM%.2f \n", quantity, COMBO_A, priceA);

quantityA += quantity;

priceA += price;

chargesA =  charges + priceA;

printf("\n");

}

else if (toupper(comboChoices) == 'B') {

printf("\n");

priceB = COMBO_B * quantity;

printf("       Combo B : %d * RM%.2f = RM%.2f \n", quantity, COMBO_B, priceB);

quantityB += quantity;

priceB += price;

chargesB = charges + priceB;

printf("\n");

}

else if (toupper(comboChoices) == 'C') {

printf("\n");

priceC = COMBO_C * quantity;

printf("       Combo C : %d * RM%.2f = RM%.2f \n", quantity, COMBO_C, priceC);

quantityC += quantity;

priceC += price;

chargesC = charges + priceC;

printf("\n");

}

else if (toupper(comboChoices) == 'D') {

printf("\n");

priceD = COMBO_D * quantity;

printf("       Combo D : %d * RM%.2f = RM%.2f \n", quantity, COMBO_D, priceD);

quantityD += quantity;

priceD += price;

chargesD = charges + priceD;

printf("\n");

}

printf("       Do you want to continue order ? ");

rewind(stdin);

printf("\n");

printf("       --> 1. YES. \n");

printf("       --> 2. NO.  \n");

printf("       Enter 1 or 2 to continue : ");

scanf("%d", &comboChoices);

rewind(stdin);

} while (comboChoices != 2);

total = priceA + priceB + priceC + priceD;

totalSST = total * SST;

totalPAY = total + totalSST;

totalSSTCharges = SST * total;

totalAmountCollected = total + totalSSTCharges;

totalQuantity = quantityA + quantityB + quantityC + quantityD;

printf("\n");

printf("                         <============================================================================>  \n");

printf("                         |          COMBO Charges           -->        >>  RM%5.2f <<                 |  \n", total);

printf("                         |           Add 10%% SST            -->        >>  RM%5.2f <<                 |  \n", totalSSTCharges);

printf("                         |         Total amount PAY         -->        >>  RM%5.2f <<                 |  \n", totalPAY);

printf("                         <============================================================================>  \n");

printf("                                     Enter Amount           -->            RM");

scanf("%lf", &amountPAID);

ChangeDUE = amountPAID - totalPAY;

rewind(stdin);

printf("                         <============================================================================>  \n");

printf("                         |            Change DUE            -->         >>  RM%.2f <<                 |  \n", ChangeDUE);

printf("                         <============================================================================>  \n");

printf("\n");

printf("                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");

printf("                                        >> Thank You !! HAVE A NICE DAY !!  <<  O(^0^)O  \n");

printf("                                      vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv\n");

printf("\n");

printf("       Next Customer ? \n");

rewind(stdin);

printf("       --> 1. YES. \n");

printf("       --> 2. NO.  \n");

printf("       Press 1 or 2 to continue --> ");

rewind(stdin);

scanf("%c", &yesOrNo);

} while (yesOrNo != '2');

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