Citazione Originariamente Scritto da fedex
The input file will contain one or more test cases. The first line of each test case will contain the number of stones n ( ). The next n lines each contain two integers xi, yi ( ) representing the coordinates of stone #i. Stone #1 is Freddy's stone, stone #2 is Fiona's stone, the other n-2 stones are unoccupied. There's a blank line following each test case. Input is terminated by a value of zero (0) for n.
Manca l'input file!!!!!!!!!!!!