little changes

src/main/java/rocks/zipcode/io/quiz4/generics/GenericUtils.java

@@ -7,6 +7,7 @@ import java.util.TreeSet;
 /**
  * @author leon on 11/12/2018.
  */
+
 public class GenericUtils {
     public static <_ extends Comparable> Iterable<? extends Iterable<_>> powerSet(Set<_> originalSet) {
         return null;

src/main/java/rocks/zipcode/io/quiz4/generics/Group.java

@@ -6,6 +6,7 @@ import java.util.Iterator;
 /**
  * @author leon on 18/12/2018.
  */
+
 public class Group<_> implements GroupInterface<_>{
 
     private ArrayList<_> group = new ArrayList<>();