Bug sur ourlinkedlist

src/Main.java

@@ -55,10 +55,14 @@ public class Main {
 			break;
 			
 		case "remove":
-			for(int i = arg0-1; i>=0; i--) {
-				list.remove(rnd.nextInt(i));
-			}
-			break;
+            if(arg2 <= arg0) {
+                int size = arg0-1;
+                for (int i = 0; i < arg2; i++) {
+                    list.remove(rnd.nextInt(size));
+                    size--;
+                }
+            }
+            break;
 			
 		case "inserthead":
 			for(int i =0; i<arg2; i++) {

src/OurLinkedList.java

@@ -56,7 +56,7 @@ public class OurLinkedList implements Structure {
     Random r = new Random();
 
     public OurLinkedList() {
-        sentinel = new Link(null, sentinel, sentinel);
+        sentinel = new Link(0, sentinel, sentinel);
         cursor = new Cursor(this, sentinel.previous);
         nbVal = 0;
     }
@@ -89,17 +89,28 @@ public class OurLinkedList implements Structure {
 
     @Override
     public void insertQueue(int elem) {
-        insert(nbVal - 1, elem);
+    	if(nbVal != 0) {
+    		insert(nbVal - 1, elem);
+    	} else {
+    		insert(0, elem);
+    	}
+        nbVal++;
     }
 
     @Override
     public void insertRandom(int elem) {
-        insert(r.nextInt(nbVal), elem);
+    	if(nbVal != 0) {
+    		insert(r.nextInt(nbVal), elem);
+    	} else {
+    		insert(0, elem);
+    	}
+        nbVal++;
     }
 
     @Override
     public void insertHead(int elem) {
         insert(0, elem);
+        nbVal++;
     }
 
     @Override
@@ -112,5 +123,7 @@ public class OurLinkedList implements Structure {
         cursor.link.previous.next = cursor.link.next;
         cursor.link.next.previous = cursor.link.previous;
         cursor.setPos(depart);
+        
+        nbVal--;
     }
 }