1) 10 points 

   a) int, char, float. (any order)

      no credit for integer character or real!

   b) (int) (any casting operator is fine. 

   c) ascii

2) 25 points 

8 10 4 3 0 
8 3 -4 2 1 5 6 7 8 9 
8 4 -2 5 5 10 12 14 16 18 

3) 16 points 

   a) 4 3 7

   b) 6.250 5

   c) 8 5 3 5

   d) -11 12 2 

   e) 24 2.03

4) 14 points 

   f: tolower
   x: word, string, (1 point for "characters")
   y: length, numletters    (2 point for "letters")
   i: count, loop, letter, character something like that.

5) 35 points

   a) 10 points

      int power(int, int);


      powersum(int matrix[][50], int rows, int cols);
      (void is ok)


    b) 7 points

       int i, j;

       powersum(arr2d, 100, 30);
       for(i=0; i < 100; i ++)
       {
	   for(j = 0; j < 30; j++)
	   printf("%d ", arr2d[i][j]);
	   printf("\n");
       }


    c) 18 points

int power(int b, int e)
{
   int i, retval = 1;

   for (i = 0; i < e; i ++)
      retval *= b;
   return retval;
}


powersum(int matrix[][50], int rows, int cols)
{
   int i, j, k, sum;

   for( i= 0; i < rows; i ++)
      for(j = 0; j < cols; j ++)
      {
	 sum = 0;
	 for(k = 0; k <= i + j; k ++)
	    sum += power(matrix[i][j], k);
	 matrix[i][j] = sum;
      }
}