[Codewars] 102: Path Finder #1: can you reach the exit?
题目TaskYouareatposition[0,0]inmazeNxNandyoucanonlymoveinoneofthefourcardinaldirections(i.e.North,East,South,West).Returntrueifyoucanreachposition[N-1,N-1]orfalseotherwise.Emptypositionsaremarked..Walls