diff --git a/SokolovEN/docs/performance_comparison.png b/SokolovEN/docs/performance_comparison.png
new file mode 100644
index 0000000..b6bfdd5
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diff --git a/SokolovEN/docs/results.csv b/SokolovEN/docs/results.csv
new file mode 100644
index 0000000..f3d1ee9
--- /dev/null
+++ b/SokolovEN/docs/results.csv
@@ -0,0 +1,109 @@
+Структура,Режим,Операция,Время (сек)
+LinkedList,случайный,insert,8.347676099999717
+LinkedList,случайный,find,0.057291300000088086
+LinkedList,случайный,delete,0.033828600000106235
+HashTable,случайный,insert,0.019370900000012625
+HashTable,случайный,find,0.00013010000020585721
+HashTable,случайный,delete,6.919999987076153e-05
+BST,случайный,insert,0.045051300000068295
+BST,случайный,find,0.00039449999985663453
+BST,случайный,delete,0.0002380000000812288
+LinkedList,случайный,insert,8.37124969999968
+LinkedList,случайный,find,0.05748009999979331
+LinkedList,случайный,delete,0.033760199999960605
+HashTable,случайный,insert,0.019708000000264292
+HashTable,случайный,find,0.00012689999994108803
+HashTable,случайный,delete,6.789999997636187e-05
+BST,случайный,insert,0.04297489999999016
+BST,случайный,find,0.00036730000010720687
+BST,случайный,delete,0.00021289999995133257
+LinkedList,случайный,insert,8.501181300000098
+LinkedList,случайный,find,0.06136560000004465
+LinkedList,случайный,delete,0.033985800000209565
+HashTable,случайный,insert,0.018909500000063417
+HashTable,случайный,find,0.00012770000012096716
+HashTable,случайный,delete,6.809999968027114e-05
+BST,случайный,insert,0.040991700000176934
+BST,случайный,find,0.000367999999980384
+BST,случайный,delete,0.0002165999999306223
+LinkedList,случайный,insert,8.44069300000001
+LinkedList,случайный,find,0.05868799999961993
+LinkedList,случайный,delete,0.033578099999886035
+HashTable,случайный,insert,0.017991799999890645
+HashTable,случайный,find,0.00012880000031145755
+HashTable,случайный,delete,6.720000010318472e-05
+BST,случайный,insert,0.04100620000008348
+BST,случайный,find,0.0003681999996842933
+BST,случайный,delete,0.00021289999995133257
+LinkedList,случайный,insert,8.554321999999956
+LinkedList,случайный,find,0.059801599999900645
+LinkedList,случайный,delete,0.03381919999992533
+HashTable,случайный,insert,0.01814620000004652
+HashTable,случайный,find,0.0001274000001103559
+HashTable,случайный,delete,6.649999977526022e-05
+BST,случайный,insert,0.04181910000033895
+BST,случайный,find,0.0003727000002982095
+BST,случайный,delete,0.00021440000000438886
+LinkedList,отсортированный,insert,8.395491100000072
+LinkedList,отсортированный,find,0.061166899999989255
+LinkedList,отсортированный,delete,0.03749729999981355
+HashTable,отсортированный,insert,0.08801780000021608
+HashTable,отсортированный,find,0.00013059999992037774
+HashTable,отсортированный,delete,7.719999985056347e-05
+BST,отсортированный,insert,18.99293549999993
+BST,отсортированный,find,0.17561569999998028
+BST,отсортированный,delete,0.10195840000005774
+LinkedList,отсортированный,insert,8.345957999999882
+LinkedList,отсортированный,find,0.06071609999980865
+LinkedList,отсортированный,delete,0.03802029999997103
+HashTable,отсортированный,insert,0.017803299999741284
+HashTable,отсортированный,find,0.00013059999992037774
+HashTable,отсортированный,delete,7.66999996812956e-05
+BST,отсортированный,insert,19.05815190000021
+BST,отсортированный,find,0.17255539999996472
+BST,отсортированный,delete,0.10364929999968808
+LinkedList,отсортированный,insert,8.494904799999858
+LinkedList,отсортированный,find,0.06991719999996349
+LinkedList,отсортированный,delete,0.0375927000000047
+HashTable,отсортированный,insert,0.018229599999813217
+HashTable,отсортированный,find,0.00013249999983599992
+HashTable,отсортированный,delete,8.08000004326459e-05
+BST,отсортированный,insert,19.04517390000001
+BST,отсортированный,find,0.17560349999985192
+BST,отсортированный,delete,0.10177699999985634
+LinkedList,отсортированный,insert,8.241154399999687
+LinkedList,отсортированный,find,0.08371720000013738
+LinkedList,отсортированный,delete,0.05189399999972011
+HashTable,отсортированный,insert,0.09625940000023547
+HashTable,отсортированный,find,0.0001606000000720087
+HashTable,отсортированный,delete,8.960000013757963e-05
+BST,отсортированный,insert,19.152932399999827
+BST,отсортированный,find,0.17190189999973882
+BST,отсортированный,delete,0.09978479999972478
+LinkedList,отсортированный,insert,8.261084100000062
+LinkedList,отсортированный,find,0.060434499999701075
+LinkedList,отсортированный,delete,0.03753559999995559
+HashTable,отсортированный,insert,0.018136799999865616
+HashTable,отсортированный,find,0.00013009999975110986
+HashTable,отсортированный,delete,7.819999973435188e-05
+BST,отсортированный,insert,19.379212700000153
+BST,отсортированный,find,0.17449820000001637
+BST,отсортированный,delete,0.0995044000001144
+LinkedList,случайный,insert (СРЕДНЕЕ),8.443024419999892
+LinkedList,случайный,find (СРЕДНЕЕ),0.05892531999988933
+LinkedList,случайный,delete (СРЕДНЕЕ),0.033794380000017554
+LinkedList,отсортированный,insert (СРЕДНЕЕ),8.347718479999912
+LinkedList,отсортированный,find (СРЕДНЕЕ),0.06719037999991997
+LinkedList,отсортированный,delete (СРЕДНЕЕ),0.040507979999892994
+HashTable,случайный,insert (СРЕДНЕЕ),0.0188252800000555
+HashTable,случайный,find (СРЕДНЕЕ),0.00012818000013794517
+HashTable,случайный,delete (СРЕДНЕЕ),6.77799998811679e-05
+HashTable,отсортированный,insert (СРЕДНЕЕ),0.047689379999974336
+HashTable,отсортированный,find (СРЕДНЕЕ),0.0001368799998999748
+HashTable,отсортированный,delete (СРЕДНЕЕ),8.04999999672873e-05
+BST,случайный,insert (СРЕДНЕЕ),0.04236864000013156
+BST,случайный,find (СРЕДНЕЕ),0.0003741399999853456
+BST,случайный,delete (СРЕДНЕЕ),0.00021895999998378102
+BST,отсортированный,insert (СРЕДНЕЕ),19.125681280000027
+BST,отсортированный,find (СРЕДНЕЕ),0.17403493999991043
+BST,отсортированный,delete (СРЕДНЕЕ),0.10133477999988827
diff --git a/SokolovEN/docs/СтруктурыДанных.py b/SokolovEN/docs/СтруктурыДанных.py
new file mode 100644
index 0000000..1eaa7dd
--- /dev/null
+++ b/SokolovEN/docs/СтруктурыДанных.py
@@ -0,0 +1,257 @@
+import random
+import time
+import csv
+import sys
+
+
+sys.setrecursionlimit(20000)
+
+
+# 1. СВЯЗНЫЙ СПИСОК
+def ll_insert(head, name, phone):
+    curr = head
+    while curr:
+        if curr['name'] == name:
+            curr['phone'] = phone
+            return head
+        curr = curr['next']
+
+    new_node = {'name': name, 'phone': phone, 'next': None}
+    if head is None:
+        return new_node
+
+    curr = head
+    while curr['next']:
+        curr = curr['next']
+    curr['next'] = new_node
+    return head
+
+
+def ll_find(head, name):
+    curr = head
+    while curr:
+        if curr['name'] == name:
+            return curr['phone']
+        curr = curr['next']
+    return None
+
+
+def ll_delete(head, name):
+    if head is None:
+        return None
+    if head['name'] == name:
+        return head['next']
+
+    curr = head
+    while curr['next']:
+        if curr['next']['name'] == name:
+            curr['next'] = curr['next']['next']
+            return head
+        curr = curr['next']
+    return head
+
+
+def ll_list_all(head):
+    res = []
+    curr = head
+    while curr:
+        res.append((curr['name'], curr['phone']))
+        curr = curr['next']
+    res.sort(key=lambda x: x[0])
+    return res
+
+
+
+# 2. ХЕШ-ТАБЛИЦА
+BUCKET_COUNT = 1024
+
+
+def ht_insert(buckets, name, phone):
+    idx = hash(name) % BUCKET_COUNT
+    buckets[idx] = ll_insert(buckets[idx], name, phone)
+
+
+def ht_find(buckets, name):
+    idx = hash(name) % BUCKET_COUNT
+    return ll_find(buckets[idx], name)
+
+
+def ht_delete(buckets, name):
+    idx = hash(name) % BUCKET_COUNT
+    buckets[idx] = ll_delete(buckets[idx], name)
+
+
+def ht_list_all(buckets):
+    res = []
+    for head in buckets:
+        curr = head
+        while curr:
+            res.append((curr['name'], curr['phone']))
+            curr = curr['next']
+    res.sort(key=lambda x: x[0])
+    return res
+
+
+
+def bst_insert(root, name, phone):
+    if root is None:
+        return {'name': name, 'phone': phone, 'left': None, 'right': None}
+    if name < root['name']:
+        root['left'] = bst_insert(root['left'], name, phone)
+    elif name > root['name']:
+        root['right'] = bst_insert(root['right'], name, phone)
+    else:
+        root['phone'] = phone
+    return root
+
+
+def bst_find(root, name):
+    if root is None:
+        return None
+    if name == root['name']:
+        return root['phone']
+    elif name < root['name']:
+        return bst_find(root['left'], name)
+    else:
+        return bst_find(root['right'], name)
+
+
+def _bst_find_min(node):
+    curr = node
+    while curr['left'] is not None:
+        curr = curr['left']
+    return curr
+
+
+def bst_delete(root, name):
+    if root is None:
+        return None
+    if name < root['name']:
+        root['left'] = bst_delete(root['left'], name)
+    elif name > root['name']:
+        root['right'] = bst_delete(root['right'], name)
+    else:
+        if root['left'] is None:
+            return root['right']
+        elif root['right'] is None:
+            return root['left']
+        else:
+            successor = _bst_find_min(root['right'])
+            root['name'] = successor['name']
+            root['phone'] = successor['phone']
+            root['right'] = bst_delete(root['right'], successor['name'])
+    return root
+
+
+def bst_list_all(root):
+    res = []
+
+    def inorder(node):
+        if node:
+            inorder(node['left'])
+            res.append((node['name'], node['phone']))
+            inorder(node['right'])
+
+    inorder(root)
+    return res
+
+
+
+# ЭКСПЕРИМЕНТАЛЬНАЯ ЧАСТЬ
+def run_experiments():
+    N = 10000
+    base_records = [(f"User_{i:05d}", f"100{i:05d}") for i in range(N)]
+
+    records_sorted = sorted(base_records, key=lambda x: x[0])
+    records_shuffled = base_records[:]
+    random.shuffle(records_shuffled)
+
+    all_names = [r[0] for r in base_records]
+    find_existing = random.sample(all_names, 100)
+    find_non_existing = [f"Missing_{i}" for i in range(10)]
+    delete_targets = random.sample(all_names, 50)
+
+    all_results = []
+    structures = ["LinkedList", "HashTable", "BST"]
+    data_modes = [("случайный", records_shuffled), ("отсортированный", records_sorted)]
+
+    for mode_name, records in data_modes:
+        print(f"\n Режим: {mode_name}")
+        for run in range(1, 6):
+            print(f" запуск {run}/5")
+
+
+            head = None
+            t = time.perf_counter()
+            for n, p in records: head = ll_insert(head, n, p)
+            t_ins = time.perf_counter() - t
+
+            t = time.perf_counter()
+            for n in find_existing + find_non_existing: ll_find(head, n)
+            t_find = time.perf_counter() - t
+
+            t = time.perf_counter()
+            for n in delete_targets: head = ll_delete(head, n)
+            t_del = time.perf_counter() - t
+
+            all_results.append(["LinkedList", mode_name, "insert", t_ins])
+            all_results.append(["LinkedList", mode_name, "find", t_find])
+            all_results.append(["LinkedList", mode_name, "delete", t_del])
+
+
+            buckets = [None] * BUCKET_COUNT
+            t = time.perf_counter()
+            for n, p in records: ht_insert(buckets, n, p)
+            t_ins = time.perf_counter() - t
+
+            t = time.perf_counter()
+            for n in find_existing + find_non_existing: ht_find(buckets, n)
+            t_find = time.perf_counter() - t
+
+            t = time.perf_counter()
+            for n in delete_targets: ht_delete(buckets, n)
+            t_del = time.perf_counter() - t
+
+            all_results.append(["HashTable", mode_name, "insert", t_ins])
+            all_results.append(["HashTable", mode_name, "find", t_find])
+            all_results.append(["HashTable", mode_name, "delete", t_del])
+
+
+            root = None
+            t = time.perf_counter()
+            for n, p in records: root = bst_insert(root, n, p)
+            t_ins = time.perf_counter() - t
+
+            t = time.perf_counter()
+            for n in find_existing + find_non_existing: bst_find(root, n)
+            t_find = time.perf_counter() - t
+
+            t = time.perf_counter()
+            for n in delete_targets: root = bst_delete(root, n)
+            t_del = time.perf_counter() - t
+
+            all_results.append(["BST", mode_name, "insert", t_ins])
+            all_results.append(["BST", mode_name, "find", t_find])
+            all_results.append(["BST", mode_name, "delete", t_del])
+
+
+    averages = []
+    for struct in structures:
+        for mode in ["случайный", "отсортированный"]:
+            for op in ["insert", "find", "delete"]:
+                times = [r[3] for r in all_results if r[0] == struct and r[1] == mode and r[2] == op]
+                avg = sum(times) / len(times)
+                averages.append([struct, mode, f"{op} (СРЕДНЕЕ)", avg])
+
+    final_csv_data = [["Структура", "Режим", "Операция", "Время (сек)"]] + all_results + averages
+
+    with open("results.csv", "w", newline="", encoding="utf-8-sig") as f:
+        writer = csv.writer(f)
+        writer.writerows(final_csv_data)
+
+    return all_results, averages
+
+
+if __name__ == "__main__":
+    raw_data, avg_data = run_experiments()
+
diff --git a/SokolovEN/docs/графики.py b/SokolovEN/docs/графики.py
new file mode 100644
index 0000000..bf836a2
--- /dev/null
+++ b/SokolovEN/docs/графики.py
@@ -0,0 +1,35 @@
+import pandas as pd
+import matplotlib.pyplot as plt
+import numpy as np
+
+df = pd.read_csv("results.csv", encoding="utf-8-sig")
+df_avg = df[df["Операция"].str.contains("СРЕДНЕЕ")].copy()
+df_avg["Операция"] = df_avg["Операция"].str.replace(" (СРЕДНЕЕ)", "")
+
+modes = ["случайный", "отсортированный"]
+operations = ["insert", "find", "delete"]
+structures = ["LinkedList", "HashTable", "BST"]
+
+x = np.arange(len(structures))
+width = 0.35
+
+fig, axes = plt.subplots(1, 3, figsize=(18, 5))
+
+for i, op in enumerate(operations):
+    ax = axes[i]
+    for j, mode in enumerate(modes):
+        mask = (df_avg["Операция"] == op) & (df_avg["Режим"] == mode)
+        times = df_avg[mask]["Время (сек)"].values
+        label = "Случайные данные" if mode == "случайный" else "Отсортированные данные"
+        ax.bar(x + j * width, times, width, label=label)
+
+    ax.set_title(f"Операция: {op.upper()}")
+    ax.set_xticks(x + width / 2)
+    ax.set_xticklabels(structures)
+    ax.set_ylabel("Время (сек)")
+    ax.legend()
+    ax.grid(axis="y", linestyle="--", alpha=0.7)
+
+plt.tight_layout()
+plt.savefig("performance_comparison.png", dpi=300)
+plt.show()
\ No newline at end of file