uploaded at 2022. 12. 17. 오전 3:45:50

programmers/두 개 뽑아서 더하기/solution.java

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+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/68644
+
+import java.util.HashSet;
+class Solution {
+    public int[] solution(int[] numbers) {
+        HashSet<Integer> answer = new HashSet<Integer>();
+        for(int a = 0; a < numbers.length-1; a++){
+            for(int b = a+1; b < numbers.length; b++){
+                answer.add(numbers[a]+numbers[b]);
+            }
+        }
+        return answer.stream().sorted().mapToInt(x->x.intValue()).toArray();
+    }
+}