PROBLEM #2: Temperature Unit Converter

4 0 0
by inverse_matatalino
by inverse_matatalino
                                        
                                                              ## DESCRIPTION ##
/*
PROBLEM #2
Create a program that convert a temperature from from any  temperature measuring unit 
Example: 
    1.    CELSIUS
    2.    FAHRENHEIT
    3.    KELVIN
    Enter your choice: 3
    
    
    
    Enter the temperature in kelvin: 40
    
    
    
    1.    CELSIUS
    2.    FAHRENHEIT
    Enter the unit measure to transform 40°K: 1
    
  
    40°K =  313.15°C
    
*/

***
#include <stdio.h>
double convert(int, int, double);
char symbol(int, int);
int main(){
    int choice1, choice2;
    int count = 0, i;
    double temperature; 
    char name[3][20] = {"Fahrenheit", "Celsius", "Kelvin"};
    
   
    printf("\t\t***TEMPERATURE CONVERTER***
");
   
    for(i = 0; i < 3; i++){
        printf("%d. %s
", i + 1, name[i]);
    }
    
    printf("
Enter your choice: ");
    scanf("%d", &choice1);
    
    printf("
Enter the temperature in %s", name[choice1 - 1]);
    scanf("%lf", &temperature);
    
    printf("
");
    
    for(i = 0; i < 3; i++){
        if(i != (choice1 - 1)){
            count++;
            printf("%d. %s
", count, name[i]);
        }
    }
    
    printf("
Convert %0.4lf°%c to: ", temperature, name[choice1-1][0]); //Get the first letter and the temperature measure
    scanf("%d", &choice2);
    
   
    
    printf("
CONVERSION:
\t\t%0.4lf°%c = %0.4lf°%c
", temperature, name[choice1 - 1][0], convert(choice1, choice2, temperature), symbol(choice1, choice2));
    return 0;
}
double convert(int choice1, int choice2, double temperature){
       
    if(choice1 == 1 && choice2 == 1)
        return (temperature - 32) * 0.5556;
   
    if(choice1 == 1 && choice2 == 2)
        return ((temperature -32) * 0.5556) + 273.15;
       
    if(choice1 == 2 && choice2 == 1)
        return (temperature * 1.8) + 32;
      
    if(choice1 == 2 && choice2 == 2)
        return temperature + 273.15;        
    
    if(choice1 == 3 && choice2 == 1)
        return 1.8 * (temperature - 273.15) + 32;
      
    if(choice1 == 3 && choice2 == 2)
        return temperature - 273.15;
}
char symbol(int choice1, int choice2){
    
    if(choice1 == 1 && choice2 == 1)
        return 'C';
      
    if(choice1 == 1 && choice2 == 2)
        return 'K';    
    
    if(choice1 == 2 && choice2 == 1)
        return 'F';   
  
    if(choice1 == 2 && choice2 == 2)
        return 'K';
    
    if(choice1 == 3 && choice2 == 1)
        return 'F';
    
    if(choice1 == 3 && choice2 == 2)
        return 'C';
    
}
***