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SolovevDS/docs/data/data_for_task1/data_structures.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Wed Apr 29 22:00:16 2026
+
+@author: ddima
+"""
+
+#--------------------------------------Связный список--------------------------
+def ll_insert(head, name, phone):
+    # 1. если список пуст → новый элемент становится head
+    if head is None:
+        return {'name': name, 'phone': phone,'next': None}
+
+    current = head
+    # 2. сначала проверим — может имя уже есть → тогда просто обновим
+    while current is not None:
+        if current['name'] == name:
+            current['phone'] = phone
+            return head
+        current = current['next']
+    # 3. идём до конца списка
+    current = head
+    while current['next'] is not None:
+        current = current['next']
+    # 4. добавляем новый узел в конец
+    current['next'] = {'name': name,'phone': phone,'next': None}
+
+    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):
+    current = head
+    previous = None
+
+    while current is not None:
+        if current['name'] == name:
+
+            # 1. удаляем голову списка
+            if previous is None:
+                return current['next']
+
+            # 2. удаляем середину или конец
+            previous['next'] = current['next']
+            return head
+
+        previous = current
+        current = current['next']
+
+    return head  # если не нашли
+
+def ll_list_all(head):
+    result = []
+    current = head
+    # 1. проходим по списку
+    while current is not None:
+        result.append((current['name'], current['phone']))
+        current = current['next']
+    # 2. сортируем по имени
+    result.sort(key=lambda x: x[0])
+
+    return result
+
+
+#----------------------------------HASH-таблица--------------------------------
+def my_hash(s, M):
+    B = 31
+    n = len(s)
+    h = 0
+    for i in range(n):
+        h += ord(s[i]) * (B ** (n - 1 - i))
+    return h % M
+
+def ht_insert(buckets, name, phone):
+    index = my_hash(name, len(buckets))
+    buckets[index] = ll_insert(buckets[index], name, phone)
+    return buckets
+
+
+def ht_find(buckets, name):
+    index = my_hash(name, len(buckets))
+    return ll_find(buckets[index], name)
+    
+def ht_delete(buckets, name):
+    index = my_hash(name, len(buckets))
+    buckets[index] = ll_delete(buckets[index], name)
+    return buckets
+
+def ht_list_all(buckets):
+    result = []
+    for i in range(len(buckets)):
+        result += ll_list_all(buckets[i])
+    result.sort(key=lambda x: x[0])
+    return result
+    
+#---------------------------Двоичное дерево поиска-----------------------------
+def bst_insert(root, name, phone):
+    if root is None:
+        return {'name': name, 'phone': phone,'left': None, 'right': None}
+    
+    current = root
+    while True:
+        # если такое имя уже есть — меняем телефон
+        if name == current['name']:
+            current['phone'] = phone
+            return root
+
+        # если новое имя меньше — идём влево
+        if name < current['name']:
+            if current['left'] is None:
+                current['left'] = {'name': name, 'phone': phone,'left': None, 'right': None}
+                return root
+            current = current['left']
+
+        # если новое имя больше — идём вправо
+        else:
+            if current['right'] is None:
+                current['right'] = {'name': name, 'phone': phone,'left': None, 'right': None}
+                return root
+            current = current['right']
+            
+def bst_find(root, name):
+    current = root
+
+    while current is not None:
+        if name == current['name']:
+            return current['phone']
+
+        if name < current['name']:
+            current = current['left']
+        else:
+            current = current['right']
+
+    return None
+
+def bst_delete(root, name):
+    current = root
+    previous = None
+    
+    while current is not None and current['name'] != name:
+        previous = current
+
+        if name < current['name']:
+            current = current['left']
+        else:
+            current = current['right']
+
+    # если не нашли
+    if current is None:
+        return root
+    
+    # 2. Если у узла два потомка
+    if current['left'] is not None and current['right'] is not None:
+        successor_parent = current
+        successor = current['right']
+
+        # ищем минимальный узел в правом поддереве
+        while successor['left'] is not None:
+            successor_parent = successor
+            successor = successor['left']
+
+        # копируем данные successor в current
+        current['name'] = successor['name']
+        current['phone'] = successor['phone']
+
+        # теперь удаляем successor
+        current = successor
+        previous = successor_parent
+    #3
+    if current['left'] is not None:
+        child = current['left']
+    else:
+        child = current['right']
+
+    # 4. Если удаляем корень
+    if previous is None:
+        return child
+
+    # 5. Переподключаем родителя
+    if previous['left'] is current:
+        previous['left'] = child
+    else:
+        previous['right'] = child
+
+    return root
+    
+def bst_list_all(root):
+    result = []
+
+    def inorder(node):
+        if node is None:
+            return
+
+        inorder(node['left'])
+        result.append((node['name'], node['phone']))
+        inorder(node['right'])
+
+    inorder(root)
+    return result
+    
+    
+    
+print('--- LINKED LIST TEST ---')
+
+head = None
+head = ll_insert(head, 'Иван', '111')
+head = ll_insert(head, 'Анна', '222')
+head = ll_insert(head, 'Петя', '333')
+head = ll_insert(head, 'Петя', '999')
+
+print(ll_find(head, 'Петя'))      # 999
+print(ll_list_all(head))          # [('Анна', ...), ('Иван', ...), ('Петя', ...)]
+
+head = ll_delete(head, 'Иван')
+print(ll_find(head, 'Иван'))      # None
+print(ll_list_all(head))
+
+
+print('--- HASH TABLE TEST ---')
+
+buckets = [None] * 5
+
+buckets = ht_insert(buckets, 'Иван', '111')
+buckets = ht_insert(buckets, 'Анна', '222')
+buckets = ht_insert(buckets, 'Петя', '333')
+buckets = ht_insert(buckets, 'Петя', '999')
+
+print(ht_find(buckets, 'Петя'))   # 999
+print(ht_list_all(buckets))
+
+buckets = ht_delete(buckets, 'Петя')
+print(ht_find(buckets, 'Петя'))   # None
+print(ht_list_all(buckets))
+
+
+print('--- BST TEST ---')
+
+root = None
+
+root = bst_insert(root, 'Иван', '111')
+root = bst_insert(root, 'Анна', '222')
+root = bst_insert(root, 'Петя', '333')
+root = bst_insert(root, 'Борис', '444')
+root = bst_insert(root, 'Олег', '555')
+root = bst_insert(root, 'Яна', '666')
+
+print(bst_find(root, 'Олег'))     # 555
+print(bst_list_all(root))
+
+root = bst_insert(root, 'Олег', '000')
+print(bst_find(root, 'Олег'))     # 000
+
+root = bst_delete(root, 'Иван')
+print(bst_find(root, 'Иван'))     # None
+print(bst_list_all(root))
+    
+    
+    
+    
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+

SolovevDS/docs/data/data_for_task1/diagramm.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Fri May  1 11:42:31 2026
+
+@author: ddima
+"""
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+data = {
+    ("LinkedList", "shuffled", "insert"): 3.46348492,
+    ("HashTable", "shuffled", "insert"): 0.01967166,
+    ("BST", "shuffled", "insert"): 0.01715242,
+
+    ("LinkedList", "shuffled", "find"): 0.0301834,
+    ("HashTable", "shuffled", "find"): 0.0002298400002,
+    ("BST", "shuffled", "find"): 0.0002346200003,
+
+    ("LinkedList", "shuffled", "delete"): 0.01254974,
+    ("HashTable", "shuffled", "delete"): 0.0001220800004,
+    ("BST", "shuffled", "delete"): 0.0001421199995,
+
+    ("LinkedList", "sorted", "insert"): 3.2739972,
+    ("HashTable", "sorted", "insert"): 0.01923022,
+    ("BST", "sorted", "insert"): 4.01406982,
+
+    ("LinkedList", "sorted", "find"): 0.0252881,
+    ("HashTable", "sorted", "find"): 0.0002579799999,
+    ("BST", "sorted", "find"): 0.0369953,
+
+    ("LinkedList", "sorted", "delete"): 0.01326564,
+    ("HashTable", "sorted", "delete"): 0.0001182399996,
+    ("BST", "sorted", "delete"): 0.02074794,
+}
+
+structures = ["BST", "LinkedList", "HashTable"]
+structure_labels = ["Бинарное дерево", "Связный список", "Хэш-таблица"]
+
+operations = [("insert", "Вставка"), ("find", "Поиск"), ("delete", "Удаление"),]
+
+for op_key, op_title in operations:
+    shuffled_values = [data[(s, "shuffled", op_key)] for s in structures]
+    sorted_values = [data[(s, "sorted", op_key)] for s in structures]
+
+    x = np.arange(len(structures))
+    width = 0.35
+
+    plt.figure(figsize=(8, 5))
+
+    plt.bar(x - width / 2, shuffled_values, width, label="Случайный")
+    plt.bar(x + width / 2, sorted_values, width, label="Отсортированный")
+
+    plt.title(op_title)
+    plt.ylabel("Время (сек)")
+    plt.xticks(x, structure_labels)
+    plt.legend()
+    plt.grid(axis="y", alpha=0.3)
+    plt.tight_layout()
+
+    plt.savefig(f"{op_key}_chart.svg", format="svg")
+    plt.show()

SolovevDS/docs/data/data_for_task1/experements_with_structures.py

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+# -*- coding: utf-8 -*-
+"""
+Created on Thu Apr 30 16:38:21 2026
+
+@author: ddima
+"""
+
+import data_structures as st
+import time
+import random
+import csv
+
+
+def generate_records(N):
+    records = []
+
+    for i in range(N):
+        name = f"User_{i:05d}"
+        phone = f"+7{random.randint(10**9, 10**10 - 1)}"
+        records.append((name, phone))
+
+    records_shuffled = records[:]
+    random.shuffle(records_shuffled)
+
+    records_sorted = sorted(records, key=lambda x: x[0])
+
+    return records_shuffled, records_sorted
+
+def linked_list_build_structure(records):
+    head = None
+
+    for name, phone in records:
+        head = st.ll_insert(head, name, phone)
+
+    return head
+
+def hash_table_build_structure(records):
+    buckets = [None] * 10007
+
+    for name, phone in records:
+        buckets = st.ht_insert(buckets, name, phone)
+
+    return buckets
+
+def bst_build_structure(records):
+    root = None
+
+    for name, phone in records:
+        root = st.bst_insert(root, name, phone)
+
+    return root
+
+def measure_time(func, *args):
+    start = time.perf_counter()
+    result = func(*args)
+    end = time.perf_counter()
+
+    return result, end - start
+
+def prepare_find_names(records):
+    existing_names = [name for name, phone in records]
+
+    find_existing = random.sample(existing_names, 100)
+
+    find_missing = []
+    for i in range(10):
+        find_missing.append(f"None_{i}")
+    find_names = find_existing + find_missing
+    return find_names
+
+
+def linked_list_find(head, find_names):
+    results = []
+    for name in find_names:
+        phone = st.ll_find(head, name)
+        results.append(phone)
+    return results
+
+def hash_table_find(buckets, find_names):
+    results = []
+    for name in find_names:
+        phone = st.ht_find(buckets, name)
+        results.append(phone)
+    return results
+
+def bst_find(root, find_names):
+    results = []
+    for name in find_names:
+        phone = st.bst_find(root, name)
+        results.append(phone)
+    return results
+
+def prepare_delete_names(records):
+    existing_names = [name for name, phone in records]
+    delete_names = random.sample(existing_names, 50)
+    return delete_names
+
+
+def linked_list_delete(head, delete_names):
+    for name in delete_names:
+        head = st.ll_delete(head, name)
+    return head
+
+def hash_table_delete(buckets, delete_names):
+    for name in delete_names:
+        buckets = st.ht_delete(buckets, name)
+    return buckets
+
+def bst_delete(root, delete_names):
+    for name in delete_names:
+        root = st.bst_delete(root, name)
+    return root
+
+
+def run_one_experiment(records_shuffled, records_sorted, find_names, delete_names):
+    one_run_results = []
+    #------------------------ создание структур + замер времени заполнения -------------------------
+    # ------------------- shuffled -------------------
+    head_shuffled, ll_insert_time_shuffled = measure_time(linked_list_build_structure,records_shuffled)
+
+    buckets_shuffled, ht_insert_time_shuffled = measure_time(hash_table_build_structure,records_shuffled)
+
+    root_shuffled, bst_insert_time_shuffled = measure_time(bst_build_structure,records_shuffled)
+
+
+    # ------------------- sorted -------------------
+
+    head_sorted, ll_insert_time_sorted = measure_time(linked_list_build_structure,records_sorted)
+
+    buckets_sorted, ht_insert_time_sorted = measure_time(hash_table_build_structure,records_sorted)
+
+    root_sorted, bst_insert_time_sorted = measure_time(bst_build_structure,records_sorted)
+
+
+
+    # ------------------- поиск в shuffled -------------------
+
+    ll_find_results_shuffled, ll_find_time_shuffled = measure_time(linked_list_find,head_shuffled,find_names)
+
+    ht_find_results_shuffled, ht_find_time_shuffled = measure_time(hash_table_find,buckets_shuffled,find_names)
+
+    bst_find_results_shuffled, bst_find_time_shuffled = measure_time(bst_find,root_shuffled,find_names)
+
+
+    # ------------------- поиск в sorted -------------------
+
+    ll_find_results_sorted, ll_find_time_sorted = measure_time(linked_list_find,head_sorted,find_names)
+
+    ht_find_results_sorted, ht_find_time_sorted = measure_time(hash_table_find,buckets_sorted,find_names)
+
+    bst_find_results_sorted, bst_find_time_sorted = measure_time(bst_find,root_sorted,find_names)
+
+
+
+    # ------------------- удаление в shuffled -------------------
+
+    head_shuffled, ll_delete_time_shuffled = measure_time(linked_list_delete,head_shuffled,delete_names)
+
+    buckets_shuffled, ht_delete_time_shuffled = measure_time(hash_table_delete,buckets_shuffled,delete_names)
+
+    root_shuffled, bst_delete_time_shuffled = measure_time(bst_delete,root_shuffled,delete_names)
+
+    # ------------------- удаление в sorted -------------------
+
+    head_sorted, ll_delete_time_sorted = measure_time(linked_list_delete,head_sorted,delete_names)
+
+    buckets_sorted, ht_delete_time_sorted = measure_time(hash_table_delete,buckets_sorted,delete_names)
+
+    root_sorted, bst_delete_time_sorted = measure_time(bst_delete,root_sorted,delete_names)
+    
+    one_run_results.append(["LinkedList", "shuffled", "insert", ll_insert_time_shuffled])
+    one_run_results.append(["HashTable", "shuffled", "insert", ht_insert_time_shuffled])
+    one_run_results.append(["BST", "shuffled", "insert", bst_insert_time_shuffled])
+
+    one_run_results.append(["LinkedList", "shuffled", "find", ll_find_time_shuffled])
+    one_run_results.append(["HashTable", "shuffled", "find", ht_find_time_shuffled])
+    one_run_results.append(["BST", "shuffled", "find", bst_find_time_shuffled])
+
+    one_run_results.append(["LinkedList", "shuffled", "delete", ll_delete_time_shuffled])
+    one_run_results.append(["HashTable", "shuffled", "delete", ht_delete_time_shuffled])
+    one_run_results.append(["BST", "shuffled", "delete", bst_delete_time_shuffled])
+
+    one_run_results.append(["LinkedList", "sorted", "insert", ll_insert_time_sorted])
+    one_run_results.append(["HashTable", "sorted", "insert", ht_insert_time_sorted])
+    one_run_results.append(["BST", "sorted", "insert", bst_insert_time_sorted])
+
+    one_run_results.append(["LinkedList", "sorted", "find", ll_find_time_sorted])
+    one_run_results.append(["HashTable", "sorted", "find", ht_find_time_sorted])
+    one_run_results.append(["BST", "sorted", "find", bst_find_time_sorted])
+
+    one_run_results.append(["LinkedList", "sorted", "delete", ll_delete_time_sorted])
+    one_run_results.append(["HashTable", "sorted", "delete", ht_delete_time_sorted])
+    one_run_results.append(["BST", "sorted", "delete", bst_delete_time_sorted])
+
+    return one_run_results
+
+
+N = 10000
+REPEATS = 5
+records_shuffled, records_sorted = generate_records(N)
+find_names = prepare_find_names(records_sorted)
+delete_names = prepare_delete_names(records_sorted)
+
+results = [["Запуск", "Структура", "Режим", "Операция", "Время (сек)"]]
+
+for run in range(1, REPEATS + 1):
+    print("Запуск эксперимента:", run)
+
+    one_run_results = run_one_experiment(records_shuffled,records_sorted,find_names,delete_names)
+
+    for row in one_run_results:
+        structure = row[0]
+        mode = row[1]
+        operation = row[2]
+        elapsed = row[3]
+
+        results.append([run, structure, mode, operation, elapsed])
+        
+groups = {}
+
+for row in results[1:]:
+    structure = row[1]
+    mode = row[2]
+    operation = row[3]
+    elapsed = row[4]
+
+    key = (structure, mode, operation)
+
+    if key not in groups:
+        groups[key] = []
+
+    groups[key].append(elapsed)
+
+
+for key, times in groups.items():
+    structure, mode, operation = key
+    avg_time = sum(times) / len(times)
+
+    results.append(["average", structure, mode, operation, avg_time])
+
+
+with open("results.csv", "w", newline="", encoding="utf-8") as f:
+    writer = csv.writer(f)
+    writer.writerows(results)
+
+print("Результаты сохранены в results.csv")    
+
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SolovevDS/docs/data/data_for_task1/results.csv

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+Запуск,Структура,Режим,Операция,Время (сек)
+1,LinkedList,shuffled,insert,3.4127272000005178
+1,HashTable,shuffled,insert,0.019356400000106078
+1,BST,shuffled,insert,0.01772239999991143
+1,LinkedList,shuffled,find,0.029260500003147172
+1,HashTable,shuffled,find,0.00023599999985890463
+1,BST,shuffled,find,0.00022670000180369243
+1,LinkedList,shuffled,delete,0.011755700001231162
+1,HashTable,shuffled,delete,0.00011840000297524966
+1,BST,shuffled,delete,0.00014689999807160348
+1,LinkedList,sorted,insert,3.2256927999987965
+1,HashTable,sorted,insert,0.019139899999572663
+1,BST,sorted,insert,4.1095220999995945
+1,LinkedList,sorted,find,0.024785800000245217
+1,HashTable,sorted,find,0.00022289999833446927
+1,BST,sorted,find,0.03631210000094143
+1,LinkedList,sorted,delete,0.012450800000806339
+1,HashTable,sorted,delete,0.00011539999832166359
+1,BST,sorted,delete,0.0211152999982005
+2,LinkedList,shuffled,insert,3.3890004999993835
+2,HashTable,shuffled,insert,0.019052899999223882
+2,BST,shuffled,insert,0.01668930000232649
+2,LinkedList,shuffled,find,0.028735200001392514
+2,HashTable,shuffled,find,0.00022629999875789508
+2,BST,shuffled,find,0.00024219999977503903
+2,LinkedList,shuffled,delete,0.01258820000293781
+2,HashTable,shuffled,delete,0.00011489999815239571
+2,BST,shuffled,delete,0.00014340000052470714
+2,LinkedList,sorted,insert,3.256336700000247
+2,HashTable,sorted,insert,0.018892399999458576
+2,BST,sorted,insert,3.978548999999475
+2,LinkedList,sorted,find,0.02532219999920926
+2,HashTable,sorted,find,0.00022780000290367752
+2,BST,sorted,find,0.036961199999495875
+2,LinkedList,sorted,delete,0.013499500000762055
+2,HashTable,sorted,delete,0.00011860000086016953
+2,BST,sorted,delete,0.02029960000072606
+3,LinkedList,shuffled,insert,3.4580803999997443
+3,HashTable,shuffled,insert,0.019483100000798004
+3,BST,shuffled,insert,0.017162699998152675
+3,LinkedList,shuffled,find,0.029887100001360523
+3,HashTable,shuffled,find,0.00023090000104275532
+3,BST,shuffled,find,0.00023660000078962184
+3,LinkedList,shuffled,delete,0.01279649999924004
+3,HashTable,shuffled,delete,0.00014880000162520446
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