#include <stdio.h>
//Program to convert celsius to fahrenheit or vis versa.
int main (void) {
    
    char unit[9];
    double tempc, tempf;
    double toc, tof;
    
    printf("Would you like to start with Celsius or Fahrenheit?\n");
    scanf("%s",&unit);

    
    printf("What temperature?");
    if (strcmp(unit,"Celsius")==0)
        scanf("%lf", &tempc);
    else
        scanf("%lf", &tempf);
        
        
    tof=1.8*tempc + 32;
    toc=(tempf-32)/1.8;   
        
    if (strcmp(unit,"Celsius") == 0)
       printf("That temperature converts to %.0f degrees Fahrenheit.\n", tof);
    else
       printf("That temperature converts to %.0f degrees Celsius.\n", toc);
        
 
    
    system("pause");
    return 0;
}