#include <stdlib.h>
#include <stdio.h>

int main()
{
    char choice = ' ';
    char repeat;
    float temp, answer;

    for (;;) {
        for (;;) {
            printf ("Enter 'c' if you want to convert from celcius to farenheit.\n");
            printf ("Enter 'f' if you want to convert from farenheit to celcius.\n: ");
            scanf ("%c", &choice);

            if (choice == 'c') {
                       fflush(stdin);
                       printf ("Enter the temperature in celcius: ");
                       scanf ("%f", &temp);
                       answer = (temp*9/5) + 32;
                       printf ("The temperature in farenheit is %.2fF\n", answer);
                       break;
            } else if (choice == 'f') {
                   fflush(stdin);
                       printf ("Enter the temperature in farenheit: ");
                       scanf ("%f", &temp);
                       answer = (temp - 32) * 5/9;
                       printf ("The temperature in celcius is %.2fC\n", answer);
                       break;
            } else {
                       printf ("Wrong input\n");
                       fflush(stdin);
            }
        }

           for (;;) {
               fflush(stdin);
               printf ("\nDo another calculation? (y/n)\n");
               scanf ("%c", &repeat);
               if (repeat == 'y') {
                       fflush(stdin);
                       break;
               } else if (repeat == 'n') {
                       return 0;
               } else {
                       fflush(stdin);
                       printf ("Wrong answer\n");

               }
           }
       }

    return 0;
}