Ilya Matveev
18 lines
378 B
Kotlin
18 lines
378 B
Kotlin
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fun box() : String {
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val array = ArrayList<String>()
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array.add("0")
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array.add("1")
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array.add("2")
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array.last = "5"
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return if(array.length == 3 && array.last == "5") "OK" else "fail"
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}
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var <T> ArrayList<T>.length : Int
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get() = size
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set(value: Int) = throw Error()
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var <T> ArrayList<T>.last : T
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get() = get(size-1)!!
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set(el : T) { set(size-1, el) }
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