#include<stdio.h>
#include<conio.h>
#include<ctype.h>
void main()
{
clrscr();
printf("1. penambahan \n");
printf("2. pengurangan \n");
printf("3. Perkalian \n");
printf("4. Pembagian \n");
int kdmenu;
printf("Masukan kode menu (1-4) = "); scanf ("%d",&kdmenu);
switch(kdmenu)
{
case 1:
printf("pertambahan \n");
char jawab;
int a,b,c;
jawab='Y';
while(toupper(jawab)=='Y'){
printf("\n\n");
printf("masukan nilai A = ");
scanf("%d",&a);
printf("masukan nilai B = ");
scanf("%d",&b);
c=a+b;
printf("A+B=%d\n",c) ;
printf("menghitung lagi (Y/T)?");
//jawaban harus 'Y','y','T'atau't'
do{
putchar('\b');
jawab=getch();
}while(!(toupper(jawab)=='Y'||toupper(jawab)=='T'));

return;
case 2:
printf("pengurangan \n");
int d,e,f;
printf("masukkan nilai A = ");
scanf("%d",&d);
printf("masukan nilai B = ");
scanf("%d",&e);
f=d-e;
printf("A-B=%d\n",f);
printf("menghitung lagi (Y/T)?");
//jawaban harus 'Y','y','T', atau 't'
do{
putchar('\b');
jawab=getch();
}while(!(toupper(jawab)=='Y'||toupper(jawab)=='T'));
return;
case 3:
printf("perkalian \n");
int g,h,i;
printf("masukan nilai A = ");
scanf("%d",g);
printf("masukan nilai B = ");
scanf("%d",h);
i=g*h;
printf("A*B=%d\n",i);
printf("menghitung lagi (Y/T)?");
//jawaban harus 'Y','y','T' atau 't'
do{
putchar('\b');
jawab=getch();
}while(!(toupper(jawab)=='Y'||toupper(jawab)=='T'));
return;
case 4:
printf("pembagian \n");
int j,k,l;
printf("masukan nilai A = ");
scanf("%d",j);
printf("masukan nilai B = ");
scanf("%d",k);
l=j/k;
printf("A/B=%d\n",l);
printf("menghitung lagi (Y/T?");
//jawaban harus 'Y','y','T' atau t
do{
jawab=getch();
}while(!(toupper(jawab)=='Y'||toupper(jawab)=='T'));
return;
default:
printf("Kode tidak ada"); }
}
getch();
}