refactor: 개행문자

Author: minji-go

contains-duplicate/minji-go.java

@@ -1,6 +1,3 @@
-import java.util.HashSet;
-import java.util.Set;
-
 class Solution {
     public boolean containsDuplicate(int[] nums) {
         Set<Integer> count = new HashSet<>();
@@ -14,4 +11,4 @@ public boolean containsDuplicate(int[] nums) {
         }
         return answer;
     }
-}
+}

valid-palindrome/minji-go.java

@@ -12,4 +12,4 @@ public boolean isPalindrome(String s) {
         }
         return answer;
     }
-}
+}