initial commit

MininaVD/docs/data/Laba1dop.doc

@@ -1,20 +0,0 @@
-Linked List Phone Book:
-
-def ll_insert(head, name, phone):
-    new_node = {'name': name, 'phone' : phone, 'next': None}
-    if head is None:
-        return new_node
-    if head['name'] == name:
-        head['phone'] = phone
-        return head
-    current = head 
-    while current['next'] is not None:
-        if current['next']['name'] == name:
-            current['next']['phone'] = phone
-            return head
-        current = current['next']
-    current['next'] = new_node
-    return head 
-     
-
-

MininaVD/docs/data/Laba1dop.txt

@@ -0,0 +1,79 @@
+Linked List Phone Book:
+
+def ll_insert(head, name, phone):
+    new_node = {'name': name, 'phone' : phone, 'next': None}
+    if head is None:
+        return new_node
+    if head['name'] == name:
+        head['phone'] = phone
+        return head
+    current = head 
+    while current['next'] is not None:
+        if current['next']['name'] == name:
+            current['next']['phone'] = phone
+            return head
+        current = current['next']
+    current['next'] = new_node
+    return head 
+def ll_find(head, name):
+    current = head
+    while current != None:
+        if current['name']==name:
+            return current['phone']
+        current = current['next']
+    return None
+def ll_delete(head, name):
+    if head is None:
+        return None
+    if head['name'] == name:
+        return head['next']
+    current = head    
+    while current['next'] is not None:
+        if current['next']['name'] == name:
+            current['next']==current['next']['next']
+            return head
+        current=current['next']
+    return head
+def ll_list_all(head): 
+    records= []
+    current = head 
+    while current is not None:
+        records.append({'name': current['name'], 'phone': current['phone']})
+        current = current['next']
+    records.sort(key=lambda x: x['name'])
+    return records 
+def ll_print_all(head):
+    records = ll_list_all(head)
+    for record in records:
+        print(f"{record['name']}: {record['phone']}")
+head = None
+#добавление записей 
+print("\n1. Добавляем записи в список:")
+head = ll_insert(head, "Анна", "123")
+head = ll_insert(head, "Сергей", "234")
+head = ll_insert(head, "Георгий", "345")
+head = ll_insert(head, "Виктория", "456")
+ll_print_all(head)
+#Обновляем номер
+print("\n2. Добавляем новую запись:")
+head = ll_insert(head, "Антон", "666")
+ll_print_all(head)
+    
+# Поиск записей
+print(f"\n3. Производим поиск записей: \nПоиск Алисы: {ll_find(head, 'Анна')}")
+print(f"Поиск Елены: {ll_find(head, 'Елена')}")
+    
+# Удаление записей
+print("\n4. Удаляем Владимира:")
+head = ll_delete(head, "Владимир")
+ll_print_all(head)
+    
+print("\n5. Удаляем Антона:")
+head = ll_delete(head, "Антон")
+ll_print_all(head)
+    
+print("\n6. Пробуем удалить несуществующую запись:")
+head = ll_delete(head, "Некто")
+ll_print_all(head)               
+
+