IP
пять(!) восклицательных знаков
Size: a a a
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fun solution(f: (Int) -> Boolean) = (1..1000).asSequence().filter { n -> (1..n).count { j -> f(j) } == 3 }
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fun Sequence<Int>.solution(f: (Int) -> Boolean) =
filter { n -> (1..n).count { j -> f(j) } == 3 }
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fun Sequence<Int>.solution(f: (Int) -> Boolean) =
filter { n -> (1..n).count { j -> f(j) } == 3 }
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