Hi
I calculate every friend`s degree to wally house and then sort them
and with a little bit change write them...
but i know there is another way to swap endpoint of line if two line
cut eachother such as
*    *
 *  *
  **
  **
 *  *
*    *
Gets
*    *
*    *
*    *
*    *
*    *
*    *
anyonw want to change his solutin with mine?
Aidin_n7@hotmail.com