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21 lines
492 B
Plaintext
21 lines
492 B
Plaintext
import java.util.ArrayList
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trait Tr {
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fun extra() : String = "_"
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}
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class N() : ArrayList<Any>(), Tr {
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override fun add(el: Any) : Boolean {
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super<ArrayList>.add(el)
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return super<ArrayList>.add(el.toString() + super<Tr>.extra() + el + extra())
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}
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override fun extra() : String = super<Tr>.extra() + super<Tr>.extra()
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}
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fun box(): String {
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val n = N()
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n.add("239")
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if (n.get(0) == "239" && n.get(1) == "239_239__") return "OK";
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return "fail";
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} |