C-PRAOGRAMM for currency converter

#include<stdio.h>
#include<conio.h>
main()
{
float exrate,saudi,ind,t1,t2;
clrscr();
printf("\nIF YOU WANT TO CONVERT INDIAN CURRENCY INTO foreign  CURRENCY THEN ENTER foreign CURRENCY AS\'0\'");
printf("\n\n\n\nenter the exchange rate of currency in india:");
scanf("%f",&exrate);
printf("enter the foreign currency:");
scanf("%f",&saudi);
t1=exrate*saudi;
if(saudi==0)
{
printf("enter the indian currency:");
scanf("%f",&ind);
t2=ind/exrate;
}
if(saudi>0)
{
printf("\ntotal indian currency=%.2f",t1);
}
else
{
printf("\ntotal saudi currency=%.2f",t2);
}
getch();
}