#includeiostreamGuess the output.#define sqr(x) ++x * ++x * ++x * ++xusing namespace std;int main(){int a = 2, z;z = ++a * ++a;a -= 2;coutsqr(a)" "z;return 0;}
int f(int &x, int c) {
c = c - 1;
if (c == 0) return 1;
x = x + 1;
return f(x, c) * x;
} public static void main(String... args) { String chair, table = "metal"; chair = chair + table; System.out.println(chair);}