Creata unsorted position list

com/xgiovio/global.java

@@ -1,7 +1,12 @@
 package com.xgiovio;
 
+import position.Position;
+import position.PositionList;
 import sequence.Sequence;
 
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
 /**
  * Created with MONSTER.
  * User: xgiovio
@@ -19,4 +24,35 @@ class global {
 
     }
 
+
+
+    public static void cancellaDuplicati (PositionList<Integer>L){
+
+        if (L.size() >=2){
+            Position<Integer> first;
+            Position<Integer> second;
+            first = L.first();
+            second = L.next(first);
+                for (;true;) {
+                    if (first.element().equals(second.element())) {
+                        L.remove(second);
+                        if (first!= L.last()) {
+                            second = L.next(first);
+                        }else {
+                            break;
+                        }
+                    } else {
+                        first = second;
+                        if (first!= L.last()) {
+                            second = L.next(second);
+                        }else {
+                            break;
+                        }
+
+                    }
+                }
+        }
+
+    }
+
 }