//输入两个数返回一个最大值
#define MAX2(A,B) ((A) >= (B)?(A):(B))
//输入三个数返回一个最大值
#define MAX3(A,B,C) ((A)>(B)&&(A)>(C)?(A):((B)>(C)?(B):(C)))
int main()
{
int a=0;
cout<<MAX2(1,3)<<endl;
cout<<MAX3(22,33,44)<<endl;
cout<<MAX3(22,44,33)<<endl;
cout<<MAX3(44,33,22)<<endl;
system("pause");
return 0;
}