- Gopher II
The gopher family, having averted the canine threat, must face a new predator.
The input contains several cases. The first line of each case contains four positive integers less than 100: n, m, s, and v. The next n lines give the coordinates of the gophers; the following m lines give the coordinates of the gopher holes. All distances are in metres; all times are in seconds; all velocities are in metres per second.
Output consists of a single line for each case, giving the number of vulnerable gophers.
2 2 5 10