void test3_1(int a, int b, int c)
{
cout<<*(&c-2);//标记行1
}
void test3()
{
int x,y,z;
cin>>x>>y>>z;
test3_1(x,y,z);
}void test3_1(int a, int b, int c)
{
cout<<*void test3_1(int a, int b, int c)
{
cout<<*(&c-2);//标记行1
}
void test3()
{
int x,y,z;
cin>>x>>y>>z;
test3_1(x,y,z);
}void test3_1(int a, int b, int c)
{
cout<<*