list_ops

u2/list_ops_test.py

@@ -0,0 +1,17 @@
+def append(list1, list2):
+    result = []
+
+    for element in list1:
+        result.append(element)
+    for element in list2:
+        result.append(element)
+    return result
+
+def concat(lists):
+    result = []
+
+    for current_list in lists:
+        for element in current_list:
+            result.append(element)
+    return result
+