From a597b5e46f9ed44b2acc10d19bade284541f502b Mon Sep 17 00:00:00 2001
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 =?UTF-8?q?=D1=82=D0=B2=D0=B5=D0=B9?= <matthewbarisov@gmail.com>
Date: Thu, 16 Apr 2026 01:40:22 +0300
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---
 BorisovMI/lab_1/docs/data/structures.py | 66 +++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 BorisovMI/lab_1/docs/data/structures.py

diff --git a/BorisovMI/lab_1/docs/data/structures.py b/BorisovMI/lab_1/docs/data/structures.py
new file mode 100644
index 0000000..2568a2a
--- /dev/null
+++ b/BorisovMI/lab_1/docs/data/structures.py
@@ -0,0 +1,66 @@
+import time
+import random
+import csv
+import os
+import matplotlib.pyplot as plt
+import numpy as np
+import sys
+
+# Связный список
+
+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 is not 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((current['name'], current['phone']))
+        current = current['next']
+    records.sort(key=lambda x: x[0])
+    return records
\ No newline at end of file