#include<iostream>
using namespace std;
int max (int x,int y);
int main()
{
int a,b,c,m1,m2;
cout<<"input a,b,c,:\t";
cin>>a>>b>>c;
m1=max(a,b);
m2=max(m1,c);
cout<<"max="<<m1<<m2;//这还是改改吧,太丑啦
return 0;//这要加,记住你的返回值
}
int max(int x,int y)
{
if (x>y)
return x;
else return y;
}