A couple more common questions...

1) I'm getting a compile problem ...
	> Undefined                       first referenced
	>  symbol                             in file
	> sqrtf                               /tmp/ccyy8Ija.o
	> ld: fatal: Symbol referencing errors. No output written to gendist
	> collect2: ld returned 1 exit status

This happens when you forget the -lm on the end of your compile line ...
	gcc -O -o gendist gendist.c -lm

2) Several of you are trying to compute the city to city distances in the
same loop where you are reading in the city positions.  That will not
work since you don't have all of the informatin yet. Rather, you need
to wait until the place where I have the comment ...
        /*
         * Insert your code here to print all of the city to city distances.
         * The output will be "%f %d %d %f %f %f %f\n" format with
         * the distance, i, j, and both city x y positions.
         */
where you will put in your two nested loops to scan all of the city to
city combinations.  Inside those loops is where you will call your dist()
function and print the resulting distance along with the index and
position information.

3) Several of you are overcomplicating the way you do the connect.c mods.
In this case, unlike in gendist, you DO NOT need to keep all of the city
positions.  Rather, as each line is read in with its 7 columns of numbers
you have all of the information you need to proceed into the actual
connection procedure where you determine whether this is a new connection
or not.  If it is a new connection then you have all of the information
that you need to print out as part of the 7 numbers you have just read in.

4) I can not find the link called "Creating a Typescript File"
Just look at the 8th entry under Useful web links related to this class

I think I have replied to all of you who have already sent in your
completed codes.

Art