國立暨南國際大學 100 學年度第一學期小考試卷                   (考試時間: 08:10-08:30)

科目名稱：資訊系統 與網路導論		開課系所：資訊工程 學系		任課教師	吳坤熹
系所別：	年級：	學號：	姓名：	考試日期	2011.12.16

1. (10%) Determine whether the following code has syntax errors or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   // Ex7_01.cpp
   #include <iostream>
   using std::cout;
   using std::endl;
   
   // Definition of a struct to represent rectangles
   struct RECTANGLE
   {
     int Left;                            // Top-left point
     int Top;                             // coordinate pair
   
     int Right;                           // Bottom-right point
     int Bottom;                          // coordinate pair
   };
   
   bool EqualAreaRect(RECTANGLE aRect, RECTANGLE bRect);
   
   int main(void)
   { 
       RECTANGLE Hut1 = ( 10, 50, 40, 90 );
       RECTANGLE Hut2 = ( 30, 20, 50, 80 );
       RECTANGLE Hut3 = ( 20, 30, 50, 80 );
     cout << (EqualAreaRect(Hut1, Hut2)?"Same Area":"Different Area") << endl;
     cout << (EqualAreaRect(Hut1, Hut3)?"Same Area":"Different Area") << endl;
     return 0;
   }
   
   // Function to calculate the area of a rectangle
   long Area(const RECTANGLE& aRect)
   {
     return (aRect.Right - aRect.Left)*(aRect.Bottom - aRect.Top);
   }
   
   bool EqualAreaRect(RECTANGLE aRect, RECTANGLE bRect)
   {
       if (Area(aRect) == Area(bRect))
           return true;
       else
           return false;
   }
   
   
   
2. (10%) Determine whether the following code has syntax errors or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
    // default value of parameters
   #include <iostream>
   using std::cout;
   using std::endl;
   
   // Definition of a struct to represent rectangles
   struct RECTANGLE
   {
     int Left;                            // Top-left point
     int Top;                             // coordinate pair
   
     int Right;                           // Bottom-right point
     int Bottom;                          // coordinate pair
   };
   
   void MoveRect(RECTANGLE& aRect, int x = 0, int y = 0)
   {
     int length(aRect.Right - aRect.Left);     // Get length of rectangle
     int width(aRect.Bottom - aRect.Top);      // Get width of rectangle
   
     aRect.Left = x;                           // Set top-left point
     aRect.Top = y;                            // to new position
     aRect.Right = x + length;                 // Get bottom-right point as
     aRect.Bottom = y + width;                 // increment from new position
     return;
   }
   
   int main(void)
   { 
     RECTANGLE Hut1;
     Hut1.Left = 70;
     Hut1.Top = 10;
     Hut1.Right = Hut1.Left + 25;
     Hut1.Bottom = 30;
     MoveRect(Hut1, 30);
     cout << Hut1.Right << ',' << Hut1.Bottom << endl;
     return 0;
   }