C de Girilen sayiyi roma rakamına çeviren prog.

#include <stdio.h>

int main()
{
int sayi,x,y,z,t;
while(sayi!=-1){
printf("Roma rakamina cevirmek istediginiz sayiyi giriniz(cikis -1): ");
scanf("%d",&sayi);
x =sayi/1000;
y =(sayi%1000)/100;
z =((sayi%1000)%100)/10;
t =((sayi%1000)%100)%10;

if(sayi<=9999){
switch(x){
case 1rintf("M");
break;
case 2rintf("MM");
break;
case 3rintf("MMM");
break;
case 4rintf("Mv");
break;
case 5rintf("v");
break;
case 6rintf("vM");
break;
case 7rintf("vMM");
break;
case 8rintf("vMMM");
break;
case 9rintf("Mx");
break;
}
switch(y){
case 1rintf("C");
break;
case 2rintf("CC");
break;
case 3rintf("CCC");
break;
case 4rintf("CD");
break;
case 5rintf("D");
break;
case 6rintf("DC");
break;
case 7rintf("DCC");
break;
case 8rintf("DCCC");
break;
case 9rintf("C");
break;
}
switch(z){
case 1rintf("X");
break;
case 2rintf("XX");
break;
case 3rintf("XXX");
break;
case 4rintf("XL");
break;
case 5rintf("L");
break;
case 6rintf("LX");
break;
case 7rintf("LXX");
break;
case 8rintf("LXXX");
break;
case 9rintf("XC");
break;
}
switch(t){
case 1rintf("I\n");
break;
case 2rintf("II\n");
break;
case 3rintf("III\n");
break;
case 4rintf("IV\n");
break;
case 5rintf("V\n");
break;
case 6rintf("VI\n");
break;
case 7rintf("VII\n");
break;
case 8rintf("VIII\n");
break;
case 9rintf("IX\n");
break;
}
}
else{
printf("Sadece 1-10000 arasinda sayi girebilirsiniz\n");
}
}
printf("Devam etmek icin Enter\'a basiniz...\n");
getch();
return 0;
}