#include <stdio.h>

double maxdouble(double a, double b);

int main() {
   double a,b;

   a = 1.0;
   b = 2.0;
   printf("maior de %f %f = %f\n", a,b,maxdouble(a,b));

   a = 1.0;
   b = -2.0;
   printf("maior de %f %f = %f\n", a,b,maxdouble(a,b));

   a = 1.5;
   b = 1.75;
   printf("maior de %f %f = %f\n", a,b,maxdouble(a,b));

   a = -1.5;
   b = -1.75;
   printf("maior de %f %f = %f\n", a,b,maxdouble(a,b));

   a = 1.5;
   b = -1.75;
   printf("maior de %f %f = %f\n", a,b,maxdouble(a,b));

   return 0;
}