Chapter 7 Exercise Set 1: CPE Practice

1. What is the output of the following program?

   #include <iostream>
   using namespace std;
   
   int f(int n) {
       ++n;
       return n++;
   }
   
   int main() {
       int x = 2, y;
       y = f(x);
       cout << x + y << endl;
       return 0;
   }
   

2. What is the output of the following program?

   #include <iostream>
   using namespace std;
   
   int f(int n) {
       int count = 0;
       for (n = 4 * n; n > 0; n >>= 2)
           count++;
       return count;
   }
   
   void f2(int n) {
       for (int count = f(n); count > 0; count--)
           cout << '*';
   }
   
   int main() {
       f2(3);
       cout << endl;
       return 0;
   }
   

   1. **

   2. ***

   3. ****

   4. *****

3. What is the output of the following program?

   #include <iostream>
   using namespace std;
   
   int somesum(int n = 1, int m = 2) {
       return n + m;
   }
   
   int main() {
       cout << somesum() + somesum(0) + somesum(2, 3) << endl;
       return 0;
   }