// WITH_STDLIB fun box(): String { val intList = listOf(1, 2, 3) val longList = listOf(1L, 2L, 3L) val intListMin = intList.minByOrNull { it } if (intListMin != 1) return "Fail intListMin=$intListMin" val intListMax = intList.maxByOrNull { it } if (intListMax != 3) return "Fail intListMax=$intListMax" val longListMin = longList.minByOrNull { it } if (longListMin != 1L) return "Fail longListMin=$longListMin" val longListMax = longList.maxByOrNull { it } if (longListMax != 3L) return "Fail longListMax=$longListMax" return "OK" }