// Format [lifespan] [list of village coordinates] -> [maximum visit-able villages]

4 -1,0 1,0 2,0 3,0 4,0 6,0 -> 4
3 1,1 2,2 3,3 -> 2
5 1,1 2,1 3,1 4,1 5,0 5,1 -> 4