Dmitry Jemerov
22 lines
509 B
Plaintext
22 lines
509 B
Plaintext
import java.util.*
|
|
|
|
fun <T> ArrayList<T>.findAll(predicate: {(T) : Boolean}): ArrayList<T> {
|
|
val result = ArrayList<T>()
|
|
for(val t in this) {
|
|
if (predicate(t)) result.add(t)
|
|
}
|
|
return result
|
|
}
|
|
|
|
|
|
fun box(): String {
|
|
val list: ArrayList<String> = ArrayList<String>()
|
|
list.add("Prague")
|
|
list.add("St.Petersburg")
|
|
list.add("Moscow")
|
|
list.add("Munich")
|
|
|
|
val m: ArrayList<String> = list.findAll<String>({(name: String) => name.startsWith("M")})
|
|
return if (m.size() == 2) "OK" else "fail"
|
|
}
|