add ll

svetlakovkyu/docs/data/01/codes/LL.py

@@ -0,0 +1,46 @@
+def ll_insert(head, name, phone):
+    current = head
+    while current is not None:
+        if current['name'] == name:
+            current['phone'] = phone 
+            return head
+        current = current['next']
+    return {'name': name, 'phone': phone, 'next': head}
+# проверка
+# my_list = None
+# my_list = ll_insert(my_list, "Ivan", "555")
+# my_list = ll_insert(my_list, "An", "666")
+# print(my_list)
+
+def ll_find(head, name):
+    current = head
+    while current is not None:
+        if current['name'] == name:
+            return current['phone']
+        current = current['next']
+    return None
+# print(ll_find(my_list,"An"))
+# buskets = [None]*10
+# print(buskets)
+
+def ll_delete(head, name):
+    if head is None:
+        return None
+    current = head
+    if head['name'] == name:
+        return head['next']
+    while current['next'] is not None:
+        if current['next']['name'] == name:
+            current['next'] = current['next']['next']
+            break
+        current = current['next']
+    return head
+    
+def ll_list_all(head):
+    res = []
+    current = head
+    while current is not None:
+        res.append((current['name'], current['phone']))
+        current = current['next']
+    res.sort()
+    return res