#include <stdio.h>   // 수정해야됨 . 풀 다 말았음.
#include <string.h>
const int INWON=5;

struct Tag
{ int num, pronum, prowon;
  long int total, dis ;
  char addcode[3],procode[3],add[10];
  float ratewon;
};

void input(struct Tag mar[],int);
void addcode(struct Tag mar[],int);
void procode(struct Tag mar[],int);
void total(struct Tag mar[],int);
void rate(struct Tag mar[],int);
void dis(struct Tag mar[],int);
void sort(struct Tag mar[],int);
void print(struct Tag mar[],int);

void main()
{   struct Tag mar[];
        input(mar, INWON);
        addcode(mar, INWON);
        procode(mar, INWON);

        total(mar, INWON);
        rate(mar, INWON);
        dis(mar, INWON);
    
        sort(mar, INWON);
        print(mar, INWON);
}

void input(Tag mar[],int n)
{   for (int k=0;k<n;k++)
        {   printf("%d\n",k+1);
          
            printf("고객번호:");
        scanf("%d",&mar[k].num);
        printf("거주지코드:");
        scanf("%s",mar[k].addcode);
        printf("물품코드:");
        scanf("%s",mar[k].procode);
                printf("판매수량:");
        scanf("%d",&mar[k].pronum);
        }
}

void addcode(Tag mar[],int n)
{   for (int k=0;k<n;k++)
        {   if (mar[k].addcode=='A')
                        strcpy(mar[k].add,"대구");

        else if (mar[k].addcode=='B')
                          strcpy(mar[k].add,"인천");

        else if (mar[k].addcode=='C')
                          strcpy(mar[k].add,"서울");

        else if (mar[k].addcode=='D')
                          strcpy(mar[k].add,"부산");

        else if (mar[k].addcode=='E')
                          strcpy(mar[k].add,"대전");

                else if (mar[k].addcode=='F')
                          strcpy(mar[k].add,"울산");

        else if (mar[k].addcode=='G')
                          strcpy(mar[k].add,"광주");
        }
}

void procode(Tag mar[], int n)
{   for (int k=0;k<n;k++)
        {   if (mar[k].procode=='AA')
                        mar[k].prowon=80;
                else if (mar[k].procode=='BB')
                        mar[k].prowon=60;
                else if (mar[k].procode=='CC')
                        mar[k].prowon=90;
                else if (mar[k].procode=='DD')
                        mar[k].prowon=50;
                else if (mar[k].procode=='EE')
                        mar[k].prowon=70;
        }
}

void total(Tag mar[],int n)
{   for (long int k=0;k<n;k++)
         mar[k].total=mar[k].procode*mar[k].pronum;
}

void rate(Tag mar[], int n)
{   for (int k=0;k<n;k++)
        {   if (mar[k].total < 3500 )
                        mar[k].ratewon=0.3;
                else if (mar[k].total>=3500 || mar[k].total<=4499)
                        mar[k].ratewon=0.4;
                else if (mar[k].total>=4500 || mar[k].total<=5499)
                        mar[k].ratewon=0.5;
                else if (mar[k].total>=5500)
                        mar[k].ratewon=0.6;
        }
}

void dis(Tag mar[], int n)
{   for (long int k=0;k<n;k++)
    mar[k].dis=mar[k].total*mar[k].ratewon;
        mar[k].income=mar[k].total-mar[k].dis;
}

void sort(Tag mar[],int n)
{   struct Tag temp;
        for (int k=0;k<n-1;k++)
    for (int h=k+1;h<n;h++)
        if (mar[k].num<mar[h].num)
            {   temp=mar[k];
                mar[k]=mar[h];
            mar[h]=temp;
                }
}

void print(Tag mar[], int n)
{  printf("고객번호  거주지명  매출액  할인액  순매출액\n");
   for (int k=0;k<n;k++)
   {   printf("%6d %10s %5d %5d %5d \n",mar[k].num, mar[k].add, mar[k].total, mar[k].dis, mar[k].income);
   }
}


제대로 한거 같은데...왜 안되는지 모르겠네여...가르쳐주세여.. 왜 틀린건지?