[UVA][幾何] 11343 - Isolated Segments
D - Isolated Segments
Time Limit: 1 sec
Memory Limit: 16MB
You're given n segments in the rectangular coordinate system. The segments
are defined by start and end points (Xi,Yi) and
(Xj,Yj) (1 <= i, j <= n). Coordinates of these
points are integer numbers wit...
