equal
deleted
inserted
replaced
1 |
1 |
2 type Pos = (Int, Int) // a position on a chessboard |
2 //type Pos = (Int, Int) // a position on a chessboard |
3 type Path = List[Pos] // a path...a list of positions |
3 //type Path = List[Pos] // a path...a list of positions |
4 |
4 |
5 def add_pair_urban(x: Pos)(y: Pos): Pos = |
5 def add_pair_urban(x: Pos)(y: Pos): Pos = |
6 (x._1 + y._1, x._2 + y._2) |
6 (x._1 + y._1, x._2 + y._2) |
7 |
7 |
8 def is_legal_urban(dim: Int, path: Path)(x: Pos): Boolean = |
8 def is_legal_urban(dim: Int, path: Path)(x: Pos): Boolean = |