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紧急!!! 快帮帮忙 C++ 的问题!!!

eric1993

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电梯直达

1^#

发表于 2011-6-18 07:08 PM |只看该作者 |倒序浏览

本帖最后由 eric1993 于 2011-6-18 07:10 PM 编辑

各位大大帮帮忙吧!!!!!
小弟正面对个大问题!!!
要怎样用 ceil() & floor() function 和 mathematic 的方式来form个formula

   [1,2,3,4] = 0
   [6,7,8,9] = 5
   [5]          = 5
用 % 的方式小弟想到头都快穿了!!!! 救命啊!

以下是小弟的  source code

#include <stdio.h>
#include <math.h>
#define GOV_TAX 0.06
#define SER_TAX 0.10

void main ()
{
int num1;
char des1[20];
double unitPrice, sum, sumtotal, gov_tax, ser_tax, discVouc, padis, lastVal, chardue, ceil_padis;
float cash;
printf("Enter Description             > ");
scanf("%s", &des1);

printf("Enter Quantities                > ");
scanf("%d", &num1);

printf("Enter Prices Of Descriptions    > ");
scanf("%lf", &unitPrice);

printf("Enter amount of Discount Voucher > ");
fflush(stdin);
scanf("%lf", &discVouc);

printf("Enter a customer cash : ");
fflush(stdin);
scanf("%f",&cash);

sum = num1 * unitPrice;
gov_tax = sum * GOV_TAX;
ser_tax = sum * SER_TAX;
sumtotal = sum + gov_tax + ser_tax;
padis = sumtotal - discVouc;
ceil_padis = ceil(padis * 10) / 10;  << 我的formula 不够完整,

lastVal = ceil_padis;
chardue = cash - lastVal;

printf("\n");
printf("             G-Core Software Development          \n");
printf("\n");
printf("          Welcome to KLFC Sales Receipt System    \n ");
printf("\n");
printf("\n");
printf("                   RECEIPT             \n");
printf("+-------------+----------+-------------+------------------+\n");
printf("| Description | Quantity | Unit Prices | Total Amount(RM) |\n");
printf("+-------------+----------+-------------+------------------+\n");
printf("| %7.13s | %d    |  %8.2f |    %8.2f |\n", des1, num1 , unitPrice, sum);
printf("+------------------------+-------------+------------------+\n");
printf("|                      |  Sub Total  |    %8.2f |\n", sum);
printf("|    Goverment Tax  6%%  |          |    %8.2f |\n", gov_tax);
printf("|    Service Tax 10%%  |          |    %8.2f |\n", ser_tax);
printf("|                      |          +------------------+\n");
printf("|                      | Grand Total |    %8.2f |\n", sumtotal);
printf("+========================+=============+==================+\n");
printf("|             Grand Total %8.2f                |\n", sumtotal);
printf("|       Discount Amount %8.2f                |\n", discVouc);
printf("|                      --------------                |\n");
printf("|          Payable Amount %8.2f                |\n", padis);
printf("|                      ==============                |\n");
printf("|       Adjusted Amount                      %8.2f|\n", lastVal);       << 这边啊!
printf("+=========================================================+\n");
   printf("          Total          %8.2f                      \n", lastVal);
printf("          Cash          %8.2f                      \n", cash);
printf("          Change Due    %8.2f                      \n", chardue);
printf("+=========================================================+\n");
printf("          THANKYOU AND HAVE A NICE DAY                \n");
printf("\n");
}

Function

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uncopyrightable

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发表于 2011-6-18 08:29 PM |只看该作者

这个好像是TARC DIA1 PCD 的assignment

programming这东西...有时google都没答案的
问你的coursemate吧

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发表于 2011-6-18 11:56 PM |只看该作者

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LoveQueenie

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发表于 2011-6-18 11:58 PM |只看该作者

SOURCE CODE

#include <stdio.h>
#include <math.h>
#define GOV_TAX 0.06
#define SER_TAX 0.10

void main ()
{
      int num1;
      char des1[20];
         double unitPrice, sum, sumtotal, gov_tax, ser_tax, discVouc, padis, lastVal, chardue, ceil_padis;
      float cash;
      printf("Enter Description             > ");
      scanf("%s", &des1);

      printf("Enter Quantities                > ");
      scanf("%d", &num1);

      printf("Enter Prices Of Descriptions    > ");
      scanf("%lf", &unitPrice);

         printf("Enter amount of Discount Voucher > ");
         fflush(stdin);
      scanf("%lf", &discVouc);

      printf("Enter a customer cash : ");
         fflush(stdin);
      scanf("%f", &cash);


      sum = num1 * unitPrice;
      gov_tax = sum * GOV_TAX;
      ser_tax = sum * SER_TAX;
         sumtotal = sum + gov_tax + ser_tax;
      padis = sumtotal - discVouc;
      int ceOfl=int(padis*100);

      if(ceOfl%10<4){
         ceil_padis = floor(padis * 10) / 10;
      }else if(ceOfl%10>5){
         ceil_padis = ceil(padis * 10) / 10;  //<< 我的formula 不够完整,
      }else{
         ceil_padis = padis;
      }

      lastVal = ceil_padis;
      chardue = cash - lastVal;

      printf("\n");
      printf("             G-Core Software Development          \n");
      printf("\n");
      printf("          Welcome to KLFC Sales Receipt System    \n ");
         printf("\n");
      printf("\n");
      printf("                   RECEIPT             \n");
      printf("+-------------+----------+-------------+------------------+\n");
      printf("| Description | Quantity | Unit Prices | Total Amount(RM) |\n");
      printf("+-------------+----------+-------------+------------------+\n");
      printf("| %7.13s | %d    |  %8.2f |    %8.2f |\n", des1, num1 , unitPrice, sum);
      printf("+------------------------+-------------+------------------+\n");
      printf("|                      |  Sub Total  |    %8.2f |\n", sum);
      printf("|    Goverment Tax  6%%  |          |    %8.2f |\n", gov_tax);
      printf("|    Service Tax 10%%  |          |    %8.2f |\n", ser_tax);
      printf("|                      |          +------------------+\n");
      printf("|                      | Grand Total |    %8.2f |\n", sumtotal);
      printf("+========================+=============+==================+\n");
      printf("|             Grand Total %8.2f                |\n", sumtotal);
      printf("|       Discount Amount %8.2f                |\n", discVouc);
      printf("|                      --------------                |\n");
      printf("|          Payable Amount %8.2f                |\n", padis);
      printf("|                      ==============                |\n");
      printf("|       Adjusted Amount                      %8.2f|\n", lastVal);    //  << 这边啊!
      printf("+=========================================================+\n");
         printf("          Total          %8.2f                      \n", lastVal);
      printf("          Cash          %8.2f                      \n", cash);
      printf("          Change Due    %8.2f                      \n", chardue);
      printf("+=========================================================+\n");
      printf("          THANKYOU AND HAVE A NICE DAY                \n");
      printf("\n");
}