| changeset 403 | ffce7b61b446 |
| parent 347 | 4de31fdc0d67 |
| 402:de59aa20a1dc | 403:ffce7b61b446 |
|---|---|
1 import CW9a._ |
1 import M4a._ |
2 |
2 |
3 val f_urban = (x:(Int, Int)) => if (x._1 > 3) Some(List(x)) else None |
3 val f_urban = (x:(Int, Int)) => if (x._1 > 3) Some(List(x)) else None |
4 |
4 |
5 assert(first(List((1,0),(2,0),(3,0),(4,0)), f_urban) == Some(List((4,0)))) |
5 assert(first(List((1,0),(2,0),(3,0),(4,0)), f_urban) == Some(List((4,0)))) |
6 assert(first(List((1,0),(2,0),(3,0)), f_urban) == None) |
6 assert(first(List((1,0),(2,0),(3,0)), f_urban) == None) |