[코딜리티] - Lesson 6. Distinct

안녕하세요 남갯입니다.

public class Distinct {

    public static int solution(int[] A) {
        // write your code in Java SE 8
        HashSet<Integer> set = new HashSet<>();
        for (int a : A) {
            set.add(a);
        }

        return set.size();
    }
}

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