1. #define #include<iostream> using namespace std; #define GO
#define SKIP
#define TAX 0.075
#define LAST_NAME "Li"
#define FIRST_NAME "Dennis"
//double TAX=0.08;
void main() {
cout << FIRST_NAME << " " << LAST_NAME << endl;
cout << "TAX = " << TAX << endl;
#ifdef GO
cout << "GO\n";
cout << "and GO\n";
#endif
#ifndef SKIP
cout << "NO SKIP\n";
cout << endl; }

2. #define #define now_define_add(type) \ type add(type a, type b) \
{ return a+b; } \
now_define_add(int)
now_define_add(double)
void main() {
int a=1,b=2;
double r=1, s=2;
cout << a / add(a,b) << endl;
cout << a / add(r,s) << endl; }