diff --git a/ASD_Task_4.depend b/ASD_Task_4.depend
index a544662..9d67f55 100644
--- a/ASD_Task_4.depend
+++ b/ASD_Task_4.depend
@@ -19,3 +19,23 @@
 	"player.h"
 	<ctime>
 
+1583587627 source:d:\tugas kuliah\github\asd_task-4\asd_task_4\main.cpp
+	"player.h"
+	"list.h"
+	<conio.h>
+
+1583496536 d:\tugas kuliah\github\asd_task-4\asd_task_4\player.h
+	"list.h"
+
+1583587651 d:\tugas kuliah\github\asd_task-4\asd_task_4\list.h
+	<string>
+	<windows.h>
+	<iostream>
+
+1583587775 source:d:\tugas kuliah\github\asd_task-4\asd_task_4\list.cpp
+	"list.h"
+
+1583587795 source:d:\tugas kuliah\github\asd_task-4\asd_task_4\player.cpp
+	"player.h"
+	<ctime>
+
diff --git a/ASD_Task_4.layout b/ASD_Task_4.layout
index 5ec49e7..20eafdc 100644
--- a/ASD_Task_4.layout
+++ b/ASD_Task_4.layout
@@ -2,29 +2,29 @@
 <CodeBlocks_layout_file>
 	<FileVersion major="1" minor="0" />
 	<ActiveTarget name="Debug" />
-	<File name="main.cpp" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="list.h" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="4763" topLine="177" />
+			<Cursor1 position="725" topLine="41" />
 		</Cursor>
 	</File>
-	<File name="player.h" open="1" top="1" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="main.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="342" topLine="0" />
+			<Cursor1 position="3290" topLine="121" />
 		</Cursor>
 	</File>
-	<File name="list.cpp" open="1" top="0" tabpos="4" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="list.cpp" open="1" top="0" tabpos="4" split="0" active="1" splitpos="0" zoom_1="-2" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="2436" topLine="0" />
+			<Cursor1 position="4676" topLine="178" />
 		</Cursor>
 	</File>
-	<File name="player.cpp" open="1" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="player.h" open="1" top="0" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="253" topLine="39" />
+			<Cursor1 position="342" topLine="0" />
 		</Cursor>
 	</File>
-	<File name="list.h" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="player.cpp" open="1" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="270" topLine="0" />
+			<Cursor1 position="1219" topLine="99" />
 		</Cursor>
 	</File>
 </CodeBlocks_layout_file>
diff --git a/bin/Debug/ASD_Task_4.exe b/bin/Debug/ASD_Task_4.exe
new file mode 100644
index 0000000..7564b93
Binary files /dev/null and b/bin/Debug/ASD_Task_4.exe differ
diff --git a/list.cpp b/list.cpp
index 847a957..c7d2fc1 100644
--- a/list.cpp
+++ b/list.cpp
@@ -5,7 +5,7 @@ void createList(List &L) {
     * FS : first(L) diset Nil
     */
     //------------- YOUR CODE HERE -------------
-
+    first(L) = NULL;
     //----------------------------------------
 }
 
@@ -17,7 +17,10 @@ address allocate(infotype x) {
 
     address P = NULL;
     //------------- YOUR CODE HERE -------------
-
+    P = new elmlist;
+    info(P) = x;
+    prev(P) = NULL;
+    next(P) = NULL;
     //----------------------------------------
     return P;
 }
@@ -27,7 +30,7 @@ void deallocate(address &P) {
     * FS : menghapus elemen yang ditunjuk oleh P (delete)
     */
     //------------- YOUR CODE HERE -------------
-
+    delete P;
     //----------------------------------------
 }
 
@@ -37,7 +40,20 @@ void insertFirst(List &L, address P) {
     * FS : elemen yang ditunjuk P menjadi elemen pertama pada List L
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L) == NULL)
+    {
+        first(L) = P;
+        prev(P) = P;
+        next(P) = P;
+    }
+    else
+    {
+        next(P) = first(L);
+        prev(P) = prev(first(L));
+        next(prev(first(L))) = P;
+        prev(first(L)) = P;
+        first(L) = P;
+    }
     //----------------------------------------
 }
 
@@ -47,7 +63,19 @@ void insertLast(List &L, address P) {
     * FS : elemen yang ditunjuk P menjadi elemen terakhir pada List L
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L) == NULL)
+    {
+        first(L) = P;
+        prev(P) = P;
+        next(P) = P;
+    }
+    else
+    {
+        next(P) = first(L);
+        prev(P) = prev(first(L));
+        next(prev(first(L))) = P;
+        prev(first(L)) = P;
+    }
     //----------------------------------------
 }
 
@@ -60,7 +88,15 @@ address findElmByID(List L, infotype x) {
 
     address P = NULL;
     //------------- YOUR CODE HERE -------------
-
+        P = first(L);
+        while (P!= first(L) && info(P).ID != x.ID)
+        {
+            P = next(P);
+        }
+        if (P == first(L) && info(P).ID != x.ID)
+        {
+            P = NULL;
+        }
     //----------------------------------------
     return P;
 }
@@ -74,7 +110,15 @@ address findElmByName(List L, infotype x) {
 
     address P = NULL;
     //------------- YOUR CODE HERE -------------
-
+    P = first(L);
+    while (P!= first(L) && info(P).name != x.name)
+    {
+        P = next(P);
+    }
+    if (P == first(L) && info(P).name != x.name)
+    {
+        P = NULL;
+    }
     //----------------------------------------
     return P;
 }
@@ -85,7 +129,21 @@ void deleteFirst(List &L, address &P) {
     * FS : elemen pertama di dalam List L dilepas dan disimpan/ditunjuk oleh P
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L) = next(first(L)))
+    {
+        P = first(L);
+        next(P) = NULL;
+        prev(P) = NULL;
+    }
+    else
+    {
+        P = first(L);
+        first(L) = next(P);
+        next(prev(P)) = prev(P);
+        prev(next(P)) = first(L);
+        next(P) = NULL;
+        prev(P) = NULL;
+    }
     //----------------------------------------
 }
 
@@ -95,7 +153,12 @@ void deleteLast(List &L, address &P) {
     * FS : elemen tarakhir di dalam List L dilepas dan disimpan/ditunjuk oleh P
     */
     //------------- YOUR CODE HERE -------------
-
+    address Q = first(L);
+    P = prev(Q);
+    next(prev(P)) = Q;
+    prev(Q) = prev(P);
+    next(P) = NULL;
+    prev(P) = NULL;
     //----------------------------------------
 }
 
@@ -106,7 +169,10 @@ void insertAfter(List &L, address &Prec, address P) {
     *      ditunjuk pointer Prec
     */
     //------------- YOUR CODE HERE -------------
-
+    prev(next(Prec)) = Prec;
+    next(P) = next(Prec);
+    next(Prec) = P;
+    prev(P) = Prec;
     //----------------------------------------
 
 }
@@ -117,7 +183,17 @@ void deleteAfter(List &L, address &Prec, address &P) {
     *      dan disimpan/ditunjuk oleh P
     */
     //------------- YOUR CODE HERE -------------
-
+    if (Prec = first(L))
+    {
+        deleteFirst(L,P);
+    }
+    else
+    {
+        next(Prec) = next(P);
+        prev(next(P)) = Prec;
+        prev(P) = NULL;
+        next(P) = NULL;
+    }
     //----------------------------------------
 }
 
diff --git a/list.h b/list.h
index 4468d0f..6b8bc21 100644
--- a/list.h
+++ b/list.h
@@ -29,14 +29,15 @@ typedef struct elmlist *address;
 
 struct elmlist {
     //-------------  YOUR CODE HERE  -----------
-
-
+    infotype info;
+    address next;
+    address prev;
     //----------------------------------------
 };
 
 struct List {
     //-------------  YOUR CODE HERE  -----------
-
+    address first;
 
     //----------------------------------------
 };
diff --git a/main.cpp b/main.cpp
index a66a5c1..7888e5a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -122,10 +122,8 @@ void runMenu(int menu) {
     case 2:
         // insert last music
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
-        //input music
-        //insertLast()
-
+        P = inputMusic();
+        insertLast(L,P);
         //----------------------------------------
         cout<<"press enter";getche();
         break;
@@ -142,8 +140,15 @@ void runMenu(int menu) {
     case 5:
         // play last music
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+        P = prev(first(L));
+        if (P != NULL)
+        {
+            playMusic(P);
+        }
+        else
+        {
+            cout<<"List kosong :("<<endl;
+        }
         //----------------------------------------
         break;
     case 6:
@@ -155,14 +160,26 @@ void runMenu(int menu) {
         if(P != NULL){
             cout<<"music found"<<endl;
         }
+        else{
+            cout<<"music not found"<<endl;
+        }
         //----------------------------------------
         cout<<"press enter";getche();
         break;
     case 7:
         // search music by ID
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+        cout<<"input music id: ";
+        cin>>x.ID;
+        P = findElmByID(L,x);
+        if(P != NULL)
+        {
+            cout<<"Music found"<<endl;
+        }
+        else
+        {
+            cout<<"Music not found"<<endl;
+        }
         //----------------------------------------
         cout<<"press enter";getche();
         break;
@@ -182,7 +199,8 @@ void runMenu(int menu) {
     case 10:
         // play previous music
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
+        P = prev(P);
+        playMusic(P);
 
         //----------------------------------------
         break;
diff --git a/obj/Debug/list.o b/obj/Debug/list.o
new file mode 100644
index 0000000..5e85ab3
Binary files /dev/null and b/obj/Debug/list.o differ
diff --git a/obj/Debug/main.o b/obj/Debug/main.o
new file mode 100644
index 0000000..5e00f27
Binary files /dev/null and b/obj/Debug/main.o differ
diff --git a/obj/Debug/player.o b/obj/Debug/player.o
new file mode 100644
index 0000000..063932d
Binary files /dev/null and b/obj/Debug/player.o differ
diff --git a/player.cpp b/player.cpp
index 31ef288..2f16963 100644
--- a/player.cpp
+++ b/player.cpp
@@ -43,9 +43,27 @@ void shuffleList(List &L) {
     * FS : isi (elemen) dari list teracak
     */
     //------------- YOUR CODE HERE -------------
-
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+    address P = first(L);
+    int Count = 0;
+    while (P != first(L))
+    {
+        P = next(P);
+        Count = Count + 1;
+    }
+    while (Count > 0)
+    {
+        P = first(L);
+        int rand = randomInt(Count);
+        while (rand != 0)
+        {
+            P = next(P);
+            rand = rand - 1;
+        }
+        address Q;
+        deleteAfter(L, prev(P), Q);
+        insertFirst(L,Q);
+        Count = Count - 1;
+    }
     //----------------------------------------
 }
 
@@ -55,9 +73,21 @@ void playRepeat(List &L, int n) {
     *      dari lagu pertama hingga terakhir sebanyak n kali
     */
     //------------- YOUR CODE HERE -------------
-
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+    address P = first(L);
+    int i = 0;
+    while (i<n)
+    {
+        while ( P != first(L))
+        {
+            cout << " Npw Playing " << info(P).name<<endl;
+            playMusic(P);
+            P = next(P);
+        }
+        while (P != first(L))
+        {
+            i = i + 1;
+        }
+    }
     //----------------------------------------
 }
 
@@ -69,9 +99,17 @@ void deleteMusicByID(List &L, infotype x) {
     * FS : elemen dengan ID yang dicari dideallocate
     */
     //------------- YOUR CODE HERE -------------
-
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+    address P,Q;
+    P = findElmByID(L,x);
+    P = prev(P);
+    if (next(P)==first(L))
+    {
+        deleteFirst(L,P);
+    }
+    else if (info(next(P)).ID == x.ID)
+    {
+        deleteAfter(L,P,Q);
+        deallocate(Q);
+    }
     //----------------------------------------
-
 }