| changeset 403 | 312c9eb39ad8 |
| parent 347 | 0b727d1a8184 |
| 402:72e43cb53c13 | 403:312c9eb39ad8 |
|---|---|
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) |