c++“三个数求最小值”

#include<stdio.h>
int main()
{
int a,b,c,d;
int min(int,int,int );
printf("请您输入三个整数:\n");
scanf("%d%d%d",&a,&b,&c);
d=min(a,b,c);
printf("您的三个数字中最小的函数是%d:\n",d);
return 0;
}
int min(int x,int y,int z)
{
int s;
s=x;
if(s>y)
s=y;
if(s>z)
s=z;
return s;
}