#include <stdio.h>
#include <stdlib.h>
float dobro_do_maior(float x, float y)
{
float dobro;
if(x > y)
{
dobro = x * 2;
}else{
dobro = y * 2;
}
return dobro;
}
void main()
{
float a, b, resultado;
printf("Digite dois numeros: ");
scanf("%d", &a);
scanf("%d", &b);
resultado = dobro_do_maior(a, b);
printf("o dobro é %f\n", resultado);
}
The problem is that this algorithm is set to zero.
The main problem is that the formatting pattern used in scanf() is wrong, you are using to enter an integer and either a floating-point type that is %f . This works:
#include <stdio.h>
float dobro_do_maior(float x, float y) {
return x > y ? x * 2 : y * 2;
}
int main() {
float a, b;
printf("Digite dois numeros: ");
scanf("%f", &a);
scanf("%f", &b);
printf("o dobro é %f\n", dobro_do_maior(a, b));
}
See running on ideone . And no Coding Ground . Also put it in GitHub for future reference .