國立暨南國際大學 97 學年度第一學期小考試卷

(考試時間: 14:10-14:30)

1. (10%) What value will the following code display?
   

   #include <iostream>
   using std::cout;
   using std::endl;
   int main()	// Bubble Sort
   {
      int i, j, temp;
      int a[]  = { 1, 9, 6, 3};
      const int K = sizeof(a) / sizeof(a[0]);
      for (i=0; i<K; i++)
        for (j=K-1; j>i; j--)
          if (a[j-1] > a[j])
          {
             temp = a[j-1];
             a[j-1] = a[j];
             a[j] = temp;
          }
      for (i=0; i<K; i++)
        cout << a[i] << 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()
   {
      const int N = 2;
      int i, j, k;
      int a[N][N] = { {1, 2}, {3, 4} };
      int b[N][N] = { {5, 6}, {7, 8} };
      int c[N][N] = { 0 };
   
      for (i=0; i<N; i++)
        for (j=0; j<N; j++)
           for (k=0; k<N; k++)
              c[i][j] += a[i][k]*b[k][j];
   
      for (i=0; i<N; i++)
      {
        for (j=0; j<N; j++)
          cout << c[i][j] << "\t";
        cout << endl;
      }
   }