diff --git a/cv4/list_ops.c b/cv4/list_ops.c
index 0c7dd34..206ef26 100644
--- a/cv4/list_ops.c
+++ b/cv4/list_ops.c
@@ -1,12 +1,17 @@
 #include "list_ops.h"
+#include <string.h>
 
 list_t *new_list(size_t length, list_element_t elements[]){
-  return NULL;
-
+  list_t* list = (list_t*)malloc(sizeof(list_t) + length * sizeof(list_element_t));
+  list->length = length;
+  memcpy(list->elements,elements, length*sizeof(list_element_t));
+  free(list);
+  return list;
 }
 
 list_t *append_list(list_t *list1, list_t *list2){
-  return NULL;
+  
+  return list2;
 
 }
 
diff --git a/cv4/list_ops.h b/cv4/list_ops.h
index 14a56d8..e4989fe 100644
--- a/cv4/list_ops.h
+++ b/cv4/list_ops.h
@@ -3,6 +3,7 @@
 
 #include <stdlib.h>
 #include <stdbool.h>
+#include <string.h>
 
 typedef int list_element_t;