uploaded at 2022. 12. 17. 오후 8:37:50

programmers/약수의 개수와 덧셈/solution.java

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+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/77884
+
+class Solution {
+    public int solution(int left, int right) {
+        int answer = 0;
+        for(int a = left; a <= right; a++){
+            int c = 1;
+            for(int b = 1; b <= a/2; b++){
+                c+=(a%b==0)?1:0;
+            }
+            if(c%2==0) answer+= a;
+            else answer -= a;
+        }
+        return answer;
+    }
+}