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%) What value will the following code display?
   

   
   // Matrix multiplication
   #include <iostream>
   using std::cout;
   using std::endl;
   
   int main()
   {
   	const int I=2;
   	const int J=3;
   	const int K=2;
   	int a[I][J] = { { 1, 2, 3 }, { 4, 5, 6 } }
   	int b[J][K] = { {1,2},{3,4},{5,6}};
   	int c[J][K]={0};
   	int i,j,k;
   	
   	for (i=0; i<I; i++)
   		for (k=0; k<K; k++)
   			for (j=0; j<J; j++)
   				c[i][k] += a[i][j]*b[j][k];
   	for (i=0; i<I; i++)
   	{
   		for (k=0; k<K; k++)
   			cout << c[i][k] << " ";
   		cout << 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 msg[2][5] = { "NCNU", "DAY" };
       cout << msg[1][1];
       cout << msg[1];
   }
   
   
   
   
   

3. (10%) What will the following code display?
   
   // Fibonacci sequence
   #include <iostream>
   using std::cout;
   using std::endl;
   
   int main()
   {
       int n = 0;
       const int M = 10;
       int F[M] = {0, 1};
   
       for (n=2; n<M; n++)
               F[n] = F[n-1] + F[n-2];
   
       for (n=0; n<M; n++)
               cout << F[n] << " ";
       cout << endl;
   
       cout << "F[6]/F[5]=" << F[6]/F[5] << endl;
   }