下面的程序错在哪？ 为什么无论输入两个什么数，其输出结果都是0？

Question

..............
void main()
{
float min(float x,float y);
float a,b,m;
scanf("%f%f",&a,&b);
m=min(a,b);
printf("min is %d\n",m);
system("pause");
}
float min(float x,float y)

{

float z;
if(x<y)
    z=x;
else
    z=y;
return z;

}

Answer 1

printf("min is %d\n",m);
->
printf("min is %f\n",m);