13 lines
425 B
Java
13 lines
425 B
Java
import java.util.stream.Collectors;
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import java.util.stream.IntStream;
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class HundredDoors {
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public static void main(String args[]) {
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String openDoors = IntStream.rangeClosed(1, 100)
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.filter(i -> Math.pow((int) Math.sqrt(i), 2) == i)
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.mapToObj(Integer::toString)
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.collect(Collectors.joining(", "));
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System.out.printf("Open doors: %s%n", openDoors);
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}
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}
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