challenge-130/lubos-kolouch/java/ch-1.java


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import java.util.Arrays;

public class Main {
  public static void main(String[] args) {
    int[] N = {2, 5, 4, 4, 5, 5, 2};
    int odd = Arrays.stream(N).reduce(0, (a, b) -> a ^ b);
    System.out.println(odd);
  }
}