國立暨南國際大學 98 學年度第一學期小考試卷

(考試時間: 14:10-14:30)

1. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).

   
   // Matrix 
   #include <iostream>
   
   using std::cout;
   using std::endl;
   
   int main() 
   {
   	int value[10] = { 1, 3, 5, 7, 9};
   	int i = 0;
   
   	for (i=0; i<10; i += 2)
   		value[i] = i;
   
   	cout << value[2] << "\t" << value[3] << endl;
   }
   
   

   
   
   
   
   
2. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).

   #include <iostream>
   using std::cout;
   using std::endl;
   
   int main()
   {
       char str1[10] = "NCNU";
       char str2[10];
       int i=0, j;
       while (str1[i] != '\0')
           i++;
       for (j=0, --i; i>=0; i--, j++)
           str2[j] = str1[i];
       str2[j] = '\0';
       cout << str1 << endl;
       cout << str2 << endl;
   }
   
   
   
   
   

3. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   
   #include <iostream>
   

   using std::cout;
   using std::endl;
   
   int main()
   {
       int value = 10;
       int* pvalue = &value;
        value += 5;
       cout << value+*pvalue << endl;
   }
   
   
   
   

4. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   
   #include <iostream>
   
   using std::cout;
   using std::endl;
   
   int main()
   {
       char str[10] = "Basic";
       char* p = str;
       cout << str << endl;
       for ( ; *p != '\0'; p++)
           *p ^= 0x20;
       cout << str << endl;
   }