C programming problem... What should I do to convert celcius into f k? I have done something wrong ?

Complier doesnt understand f and k in the cases


#include %26lt;stdio.h%26gt;


int main()


{


double a;


int w, c=0, f=0 ;


scanf("%d",%26amp;w);


switch (w){


case f:


scanf("%lf", %26amp;a);


printf("F %lf",32.0+1.8*a);


case k:


scanf("%lf", %26amp;a);


printf("K %lf",a+273);





}


return 0;


}

C programming problem... What should I do to convert celcius into f k? I have done something wrong ?
#include %26lt;stdio.h%26gt;


int main()


{


double a;


char w;


scanf("%d",%26amp;w);





switch (w)


{


case 'f':


scanf("%lf", %26amp;a);


printf("F %lf",32.0+1.8*a);


break;


case 'k':


scanf("%lf", %26amp;a);


printf("K %lf",a+273);


break;


default:


printf("\n Enter f for foreignfeet, k for kelvin\n");


}


return 0;


}
Reply:f and k will be interpreted as undefined variables.


try


case 'f':





case 'k':
Reply:the reason its not working is your using w that a int read in. and f that = 0 so unless someone puts 0 in w that statement has gone. case k wont ever come up either. i think you need to read in char* in stead of ints. it looks like that what your trying to do.





other than that it looks ok.
Reply:Learn how Switch() works too.


I dont think not using breaks is your intention.