Program to convert tempreture in ferenite to celcius or celcius to ferenite

/*Program to convert tempreture in ferenite to celcius or celcius to ferenite*/

void main()

{

float f,c;

char ch;

clrscr();

printf("enter intial scale f or c :");

scanf("%c",&ch);

switch(ch)

{

case 'c':

case 'C':

printf("enter temp in %c",ch);

scanf("%f",&c);

f=9*c/5+32;

printf("temp in f=%f",f);

break;

case 'f':

case 'F':

printf("enter temp in %c :",ch);

scanf("%f",&f);

c=5*(f-32)/9;

printf("temp in c=%f",c);

break;

default:

printf("invalid choice of scale");

}

getch();

}