#include<stdio.h>
#include<conio.h>
void main(void)
{
     long double cost;
     long double tax;


            clrscr( );
            printf("\n 급여액을 입력하세요 : ");
            scanf("%ld" , &cost);
        if (cost < 200000)
                    {
            printf("\n세금 없음.");
            }
        else if (cost >= 200000 || cost < 400000)
                {
            tax = 200000 + cost / 0.10;
                 printf("\n 세금 : %ld", tax);
              
            }
             else if (cost >= 400000 || cost < 600000)
                     {
                          tax = 200000 + cost / 0.08;
                       printf("\n 세금 : %ld원",tax);
                   
              }
                else if (cost >= 600000 || cost < 2000000)
                           {
                               tax = 200000 + cost / 0.06;
                   printf("\n 세금 : %ld원",tax);

                   }
                else
                                {
                                    tax = 200000 + cost / 0.05;
                    printf("\n 세금 : %ld원",tax);
                                getch( );
                    }

}
오류점 찾아주세요.