romanovpv/task 1/docs/data/bst.py

@@ -0,0 +1,61 @@
+def bst_create_node(name, phone):
+    return {'name': name, 'phone': phone, 'left': None, 'right': None}
+
+def bst_insert(root, name, phone):
+    if root is None:
+        return bst_create_node(name, phone)
+    
+    if name == root['name']:
+        root['phone'] = phone
+    elif name < root['name']:
+        root['left'] = bst_insert(root['left'], name, phone)
+    else:
+        root['right'] = bst_insert(root['right'], name, phone)
+    return root
+
+def bst_find(root, name):
+    if root is None:
+        return None
+    if root['name'] == name:
+        return root['phone']
+    if name < root['name']:
+        return bst_find(root['left'], name)
+    return bst_find(root['right'], name)
+
+def _bst_min_value_node(node):
+    current = node
+    while current['left'] is not None:
+        current = current['left']
+    return current
+
+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']
+        
+        temp = _bst_min_value_node(root['right'])
+        root['name'] = temp['name']
+        root['phone'] = temp['phone']
+        root['right'] = bst_delete(root['right'], temp['name'])
+        
+    return root
+
+def bst_list_all(root):
+    def inorder(node, acc):
+        if node:
+            inorder(node['left'], acc)
+            acc.append((node['name'], node['phone']))
+            inorder(node['right'], acc)
+        return acc
+    
+    return inorder(root, [])

romanovpv/task 1/docs/data/graphs.py

@@ -0,0 +1,101 @@
+import matplotlib.pyplot as plt
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [8.083650, 5.302733]
+)
+plt.title("LinkedList — Insert")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.071586, 0.079588]
+)
+plt.title("LinkedList — Search")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.042504, 0.052027]
+)
+plt.title("LinkedList — Delete")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.101125, 0.121933]
+)
+plt.title("HashTable — Insert")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.000974, 0.000976]
+)
+plt.title("HashTable — Search")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.000567, 0.000591]
+)
+plt.title("HashTable — Delete")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [14.745275, 0.205333]
+)
+
+plt.title("BST — Insert")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.149163, 0.000375]
+)
+
+plt.title("BST — Search")
+plt.ylabel("Time (sec)")
+plt.show()
+
+
+
+plt.figure(figsize=(6, 5))
+plt.bar(
+    ["Sorted", "Random"],
+    [0.302392, 0.002267]
+)
+plt.title("BST — Delete")
+plt.ylabel("Time (sec)")
+plt.show()

romanovpv/task 1/docs/data/hash_table.py

@@ -0,0 +1,29 @@
+import linked_list as ll
+
+def ht_create(size=100):
+    return [None] * size
+
+def ht_get_hash(buckets, name):
+    return hash(name) % len(buckets)
+
+def ht_insert(buckets, name, phone):
+    idx = ht_get_hash(buckets, name)
+    buckets[idx] = ll.ll_insert(buckets[idx], name, phone)
+
+def ht_find(buckets, name):
+    idx = ht_get_hash(buckets, name)
+    return ll.ll_find(buckets[idx], name)
+
+def ht_delete(buckets, name):
+    idx = ht_get_hash(buckets, name)
+    buckets[idx] = ll.ll_delete(buckets[idx], name)
+
+def ht_list_all(buckets):
+    all_entries = []
+    for bucket in buckets:
+        if bucket:
+            current = bucket
+            while current:
+                all_entries.append((current['name'], current['phone']))
+                current = current['next']
+    return sorted(all_entries, key=lambda x: x[0])

romanovpv/task 1/docs/data/linked_list.py

@@ -0,0 +1,47 @@
+def ll_create_node(name, phone):
+    return {'name': name, 'phone': phone, 'next': None}
+
+def ll_insert(head, name, phone):
+    if head is None:
+        return ll_create_node(name, phone)
+    current = head
+    while current:
+        if current ['name'] == name:
+            current['phone'] = phone
+            return head
+        if current ['next'] is None:
+            break
+        current = current['next']
+    current['next'] = ll_create_node(name, phone)
+    return head
+
+def ll_find(head, name):
+    current = head
+    while current:
+        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']:
+        if current['next']['name'] == name:
+            current['next'] = current['next']['next']
+            return head
+        
+        current = current['next']
+    return head
+        
+def ll_list_all(head):
+    items = []
+    current = head
+    while current:
+        items.append((current['name'], current['phone']))
+        current = current['next']
+    return sorted(items, key=lambda x:x[0])

romanovpv/task 1/docs/data/main.py

@@ -0,0 +1,205 @@
+import time
+import random
+import linked_list as ll
+import hash_table as ht
+import bst
+import sys
+
+sys.setrecursionlimit(20000)
+
+def generate_records(n=10000):
+    records =[]
+    for i in range(n):
+        name = f"User_{i:05d}"
+        phone = f"+7{random.randint(9000000000, 9999999999)}"
+        records.append((name, phone))
+        
+    records_sorted = list(records)       
+    records_shuffled = list(records)
+    random.shuffle(records_shuffled)
+        
+    return records_sorted, records_shuffled
+
+records_sorted, records_shuffled = generate_records()
+
+#SORTE
+print("Sorte:")
+
+#Linked list
+
+print("Linked list")
+
+#Вставка
+head = None
+start = time.perf_counter()
+for name, phone in records_sorted:
+    head = ll.ll_insert(head, name, phone)
+end = time.perf_counter()
+print(f"Insert: {end - start:.4f} sec")
+
+#Поиск
+existing = random.sample(records_sorted, 100)
+missing = [f"None_{i}" for i in range(10)]
+start = time.perf_counter()
+for name, _ in existing:
+    ll.ll_find(head, name)
+for name in missing:
+    ll.ll_find(head, name)
+end = time.perf_counter()
+print(f"Find (110): {end - start:.6f} sec")
+
+#Удаление
+to_delete = random.sample(records_sorted, 50)
+
+start = time.perf_counter()
+for name, _ in to_delete:
+    head = ll.ll_delete(head, name)
+end = time.perf_counter()
+print(f"Delete (50): {end - start:.6f} sec")
+
+#Hash table
+
+print("Hash table")
+
+#Вставка
+table = ht.ht_create()
+start = time.perf_counter()
+for name, phone in records_sorted:
+    ht.ht_insert(table, name, phone)
+end = time.perf_counter()
+print(f"Insert: {end - start:.4f} sec")
+
+#Поиск
+start = time.perf_counter()
+for name, _ in existing:
+    ht.ht_find(table, name)
+for name in missing:
+    ht.ht_find(table, name)
+end = time.perf_counter()
+print(f"Find (110): {end - start:.6f} sec")
+
+#УДаление
+start = time.perf_counter()
+for name, _ in to_delete:
+    ht.ht_delete(table, name)
+end = time.perf_counter()
+print(f"Delete (50): {end - start:.6f} sec")
+
+#BST
+
+print("BST")
+
+#Вставка
+root = None
+start = time.perf_counter()
+for name, phone in records_sorted:
+    root = bst.bst_insert(root, name, phone)
+end = time.perf_counter()
+print(f"Insert: {end - start:.4f} sec")
+
+#Поиск
+start = time.perf_counter()
+for name, _ in existing:
+    bst.bst_find(root, name)
+for name in missing:
+    bst.bst_find(root, name)
+end = time.perf_counter()
+print(f"Find (110): {end - start:.6f} sec")
+
+#Удаление
+start = time.perf_counter()
+for name, _ in to_delete:
+    root = bst.bst_delete(root, name)
+end = time.perf_counter()
+print(f"Delete (50): {end - start:.6f} sec")
+
+#SHUFFLE
+print("Shuffle:")
+
+#Linked list
+
+print("Linked list")
+
+#Вставка
+head = None
+start = time.perf_counter()
+for name, phone in records_shuffled:
+    head = ll.ll_insert(head, name, phone)
+end = time.perf_counter()
+print(f"Insert: {end - start:.4f} sec")
+
+#Поиск
+existing = random.sample(records_shuffled, 100)
+missing = [f"None_{i}" for i in range(10)]
+start = time.perf_counter()
+for name, _ in existing:
+    ll.ll_find(head, name)
+for name in missing:
+    ll.ll_find(head, name)
+end = time.perf_counter()
+print(f"Find (110): {end - start:.6f} sec")
+
+#Удаление
+to_delete = random.sample(records_shuffled, 50)
+
+start = time.perf_counter()
+for name, _ in to_delete:
+    head = ll.ll_delete(head, name)
+end = time.perf_counter()
+print(f"Delete (50): {end - start:.6f} sec")
+
+#Hash table
+
+print("Hash table")
+
+#Вставка
+table = ht.ht_create()
+start = time.perf_counter()
+for name, phone in records_shuffled:
+    ht.ht_insert(table, name, phone)
+end = time.perf_counter()
+print(f"Insert: {end - start:.4f} sec")
+
+#Поиск
+start = time.perf_counter()
+for name, _ in existing:
+    ht.ht_find(table, name)
+for name in missing:
+    ht.ht_find(table, name)
+end = time.perf_counter()
+print(f"Find (110): {end - start:.6f} sec")
+
+#УДаление
+start = time.perf_counter()
+for name, _ in to_delete:
+    ht.ht_delete(table, name)
+end = time.perf_counter()
+print(f"Delete (50): {end - start:.6f} sec")
+
+#BST
+
+print("BST")
+
+#Вставка
+root = None
+start = time.perf_counter()
+for name, phone in records_shuffled:
+    root = bst.bst_insert(root, name, phone)
+end = time.perf_counter()
+print(f"Insert: {end - start:.4f} sec")
+
+#Поиск
+start = time.perf_counter()
+for name, _ in existing:
+    bst.bst_find(root, name)
+for name in missing:
+    bst.bst_find(root, name)
+end = time.perf_counter()
+print(f"Find (110): {end - start:.6f} sec")
+
+#Удаление
+start = time.perf_counter()
+for name, _ in to_delete:
+    root = bst.bst_delete(root, name)
+end = time.perf_counter()
+print(f"Delete (50): {end - start:.6f} sec")

romanovpv/task 1/docs/data/results.csv

@@ -0,0 +1,109 @@
+Run,Structure,Mode,Operation,Time(sec)
+1,LinkedList,Sorted,Insert,8.1964
+1,LinkedList,Sorted,Search,0.057671
+1,LinkedList,Sorted,Delete,0.035085
+1,HashTable,Sorted,Insert,0.0894
+1,HashTable,Sorted,Search,0.000865
+1,HashTable,Sorted,Delete,0.000470
+1,BST,Sorted,Insert,14.9662
+1,BST,Sorted,Search,0.118534
+1,BST,Sorted,Delete,0.72515
+1,LinkedList,Random,Insert,7.2082
+1,LinkedList,Random,Search,0.076737
+1,LinkedList,Random,Delete,0.056586
+1,HashTable,Random,Insert,0.1015
+1,HashTable,Random,Search,0.000963
+1,HashTable,Random,Delete,0.000602
+1,BST,Random,Insert,0.506
+1,BST,Random,Search,0.000429
+1,BST,Random,Delete,0.00238
+2,LinkedList,Sorted,Insert,7.7138
+2,LinkedList,Sorted,Search,0.116941
+2,LinkedList,Sorted,Delete,0.060090
+2,HashTable,Sorted,Insert,0.1367
+2,HashTable,Sorted,Search,0.001365
+2,HashTable,Sorted,Delete,0.000725
+2,BST,Sorted,Insert,14.8739
+2,BST,Sorted,Search,0.125425
+2,BST,Sorted,Delete,0.076719
+2,LinkedList,Random,Insert,8.2494
+2,LinkedList,Random,Search,0.059883
+2,LinkedList,Random,Delete,0.041534
+2,HashTable,Random,Insert,0.1364
+2,HashTable,Random,Search,0.001197
+2,HashTable,Random,Delete,0.000688
+2,BST,Random,Insert,0.0633
+2,BST,Random,Search,0.000364
+2,BST,Random,Delete,0.00225
+3,LinkedList,Sorted,Insert,8.8046
+3,LinkedList,Sorted,Search,0.057129
+3,LinkedList,Sorted,Delete,0.038862
+3,HashTable,Sorted,Insert,0.0898
+3,HashTable,Sorted,Search,0.000828
+3,HashTable,Sorted,Delete,0.000556
+3,BST,Sorted,Insert,14.8563
+3,BST,Sorted,Search,0.203530
+3,BST,Sorted,Delete,0.105306
+3,LinkedList,Random,Insert,0.4506
+3,LinkedList,Random,Search,0.102144
+3,LinkedList,Random,Delete,0.057962
+3,HashTable,Random,Insert,0.1279
+3,HashTable,Random,Search,0.000767
+3,HashTable,Random,Delete,0.000484
+3,BST,Random,Insert,0.0467
+3,BST,Random,Search,0.000332
+3,BST,Random,Delete,0.00217
+4,LinkedList,Sorted,Insert,7.6198
+4,LinkedList,Sorted,Search,0.054603
+4,LinkedList,Sorted,Delete,0.035980
+4,HashTable,Sorted,Insert,0.0886
+4,HashTable,Sorted,Search,0.000837
+4,HashTable,Sorted,Delete,0.000515
+4,BST,Sorted,Insert,14.2847
+4,BST,Sorted,Search,0.112083
+4,BST,Sorted,Delete,0.76102
+4,LinkedList,Random,Insert,7.9882
+4,LinkedList,Random,Search,0.080089
+4,LinkedList,Random,Delete,0.045272
+4,HashTable,Random,Insert,0.1034
+4,HashTable,Random,Search,0.000897
+4,HashTable,Random,Delete,0.000522
+4,BST,Random,Insert,0.0415
+4,BST,Random,Search,0.000340
+4,BST,Random,Delete,0.00203
+5,LinkedList,Sorted,Insert,6.6408
+5,LinkedList,Sorted,Search,0.103166
+5,LinkedList,Sorted,Delete,0.044656
+5,HashTable,Sorted,Insert,0.0895
+5,HashTable,Sorted,Search,0.000782
+5,HashTable,Sorted,Delete,0.000464
+5,BST,Sorted,Insert,13.9106
+5,BST,Sorted,Search,0.113157
+5,BST,Sorted,Delete,0.073544
+5,LinkedList,Random,Insert,9.6219
+5,LinkedList,Random,Search,0.058146
+5,LinkedList,Random,Delete,0.036343
+5,HashTable,Random,Insert,0.0876
+5,HashTable,Random,Search,0.000840
+5,HashTable,Random,Delete,0.000460
+5,BST,Random,Insert,0.0406
+5,BST,Random,Search,0.000352
+5,BST,Random,Delete,0.00207
+Average,LinkedList,Sorted,Insert,8.083650
+Average,LinkedList,Sorted,Search,0.071586
+Average,LinkedList,Sorted,Delete,0.042504
+Average,HashTable,Sorted,Insert,0.101125
+Average,HashTable,Sorted,Search,0.000974
+Average,HashTable,Sorted,Delete,0.000567
+Average,BST,Sorted,Insert,14.745275
+Average,BST,Sorted,Search,0.149163
+Average,BST,Sorted,Delete,0.302392
+Average,LinkedList,Random,Insert,5.302733
+Average,LinkedList,Random,Search,0.079588
+Average,LinkedList,Random,Delete,0.052027
+Average,HashTable,Random,Insert,0.121933
+Average,HashTable,Random,Search,0.000976
+Average,HashTable,Random,Delete,0.000591
+Average,BST,Random,Insert,0.205333
+Average,BST,Random,Search,0.000375
+Average,BST,Random,Delete,0.002267

romanovpv/task 1/docs/data/results.py

@@ -0,0 +1,152 @@
+import csv
+
+results = [
+    ["Run", "Structure", "Mode", "Operation", "Time(sec)"],
+
+    ["1", "LinkedList", "Sorted", "Insert", "8.1964"],
+    ["1", "LinkedList", "Sorted", "Search", "0.057671"],
+    ["1", "LinkedList", "Sorted", "Delete", "0.035085"]
+    ,
+    ["1", "HashTable", "Sorted", "Insert", "0.0894"],
+    ["1", "HashTable", "Sorted", "Search", "0.000865"],
+    ["1", "HashTable", "Sorted", "Delete", "0.000470"],
+    
+    ["1", "BST", "Sorted", "Insert", "14.9662"],
+    ["1", "BST", "Sorted", "Search", "0.118534"],
+    ["1", "BST", "Sorted", "Delete", "0.72515"],
+    
+    ["1", "LinkedList", "Random", "Insert", "7.2082"],
+    ["1", "LinkedList", "Random", "Search", "0.076737"],
+    ["1", "LinkedList", "Random", "Delete", "0.056586"],
+    
+    ["1", "HashTable", "Random", "Insert", "0.1015"],
+    ["1", "HashTable", "Random", "Search", "0.000963"],
+    ["1", "HashTable", "Random", "Delete", "0.000602"],
+    
+    ["1", "BST", "Random", "Insert", "0.506"],
+    ["1", "BST", "Random", "Search", "0.000429"],
+    ["1", "BST", "Random", "Delete", "0.00238"],
+
+    ["2", "LinkedList", "Sorted", "Insert", "7.7138"],
+    ["2", "LinkedList", "Sorted", "Search", "0.116941"],
+    ["2", "LinkedList", "Sorted", "Delete", "0.060090"],
+    
+    ["2", "HashTable", "Sorted", "Insert", "0.1367"],
+    ["2", "HashTable", "Sorted", "Search", "0.001365"],
+    ["2", "HashTable", "Sorted", "Delete", "0.000725"],
+    
+    ["2", "BST", "Sorted", "Insert", "14.8739"],
+    ["2", "BST", "Sorted", "Search", "0.125425"],
+    ["2", "BST", "Sorted", "Delete", "0.076719"],
+    
+    ["2", "LinkedList", "Random", "Insert", "8.2494"],
+    ["2", "LinkedList", "Random", "Search", "0.059883"],
+    ["2", "LinkedList", "Random", "Delete", "0.041534"],
+    
+    ["2", "HashTable", "Random", "Insert", "0.1364"],
+    ["2", "HashTable", "Random", "Search", "0.001197"],
+    ["2", "HashTable", "Random", "Delete", "0.000688"],
+    
+    ["2", "BST", "Random", "Insert", "0.0633"],
+    ["2", "BST", "Random", "Search", "0.000364"],
+    ["2", "BST", "Random", "Delete", "0.00225"],
+
+    ["3", "LinkedList", "Sorted", "Insert", "8.8046"],
+    ["3", "LinkedList", "Sorted", "Search", "0.057129"],
+    ["3", "LinkedList", "Sorted", "Delete", "0.038862"],
+    
+    ["3", "HashTable", "Sorted", "Insert", "0.0898"],
+    ["3", "HashTable", "Sorted", "Search", "0.000828"],
+    ["3", "HashTable", "Sorted", "Delete", "0.000556"],
+    
+    ["3", "BST", "Sorted", "Insert", "14.8563"],
+    ["3", "BST", "Sorted", "Search", "0.203530"],
+    ["3", "BST", "Sorted", "Delete", "0.105306"],
+    
+    ["3", "LinkedList", "Random", "Insert", "0.4506"],
+    ["3", "LinkedList", "Random", "Search", "0.102144"],
+    ["3", "LinkedList", "Random", "Delete", "0.057962"],
+    
+    ["3", "HashTable", "Random", "Insert", "0.1279"],
+    ["3", "HashTable", "Random", "Search", "0.000767"],
+    ["3", "HashTable", "Random", "Delete", "0.000484"],
+    
+    ["3", "BST", "Random", "Insert", "0.0467"],
+    ["3", "BST", "Random", "Search", "0.000332"],
+    ["3", "BST", "Random", "Delete", "0.00217"],
+
+    ["4", "LinkedList", "Sorted", "Insert", "7.6198"],
+    ["4", "LinkedList", "Sorted", "Search", "0.054603"],
+    ["4", "LinkedList", "Sorted", "Delete", "0.035980"],
+    
+    ["4", "HashTable", "Sorted", "Insert", "0.0886"],
+    ["4", "HashTable", "Sorted", "Search", "0.000837"],
+    ["4", "HashTable", "Sorted", "Delete", "0.000515"],
+    
+    ["4", "BST", "Sorted", "Insert", "14.2847"],
+    ["4", "BST", "Sorted", "Search", "0.112083"],
+    ["4", "BST", "Sorted", "Delete", "0.76102"],
+    
+    ["4", "LinkedList", "Random", "Insert", "7.9882"],
+    ["4", "LinkedList", "Random", "Search", "0.080089"],
+    ["4", "LinkedList", "Random", "Delete", "0.045272"],
+    
+    ["4", "HashTable", "Random", "Insert", "0.1034"],
+    ["4", "HashTable", "Random", "Search", "0.000897"],
+    ["4", "HashTable", "Random", "Delete", "0.000522"],
+    
+    ["4", "BST", "Random", "Insert", "0.0415"],
+    ["4", "BST", "Random", "Search", "0.000340"],
+    ["4", "BST", "Random", "Delete", "0.00203"],
+
+    ["5", "LinkedList", "Sorted", "Insert", "6.6408"],
+    ["5", "LinkedList", "Sorted", "Search", "0.103166"],
+    ["5", "LinkedList", "Sorted", "Delete", "0.044656"],
+    
+    ["5", "HashTable", "Sorted", "Insert", "0.0895"],
+    ["5", "HashTable", "Sorted", "Search", "0.000782"],
+    ["5", "HashTable", "Sorted", "Delete", "0.000464"],
+    
+    ["5", "BST", "Sorted", "Insert", "13.9106"],
+    ["5", "BST", "Sorted", "Search", "0.113157"],
+    ["5", "BST", "Sorted", "Delete", "0.073544"],
+    
+    ["5", "LinkedList", "Random", "Insert", "9.6219"],
+    ["5", "LinkedList", "Random", "Search", "0.058146"],
+    ["5", "LinkedList", "Random", "Delete", "0.036343"],
+    
+    ["5", "HashTable", "Random", "Insert", "0.0876"],
+    ["5", "HashTable", "Random", "Search", "0.000840"],
+    ["5", "HashTable", "Random", "Delete", "0.000460"],
+    
+    ["5", "BST", "Random", "Insert", "0.0406"],
+    ["5", "BST", "Random", "Search", "0.000352"],
+    ["5", "BST", "Random", "Delete", "0.00207"],
+    
+    ["Average", "LinkedList", "Sorted", "Insert", "8.083650"],
+    ["Average", "LinkedList", "Sorted", "Search", "0.071586"],
+    ["Average", "LinkedList", "Sorted", "Delete", "0.042504"],
+
+    ["Average", "HashTable", "Sorted", "Insert", "0.101125"],
+    ["Average", "HashTable", "Sorted", "Search", "0.000974"],
+    ["Average", "HashTable", "Sorted", "Delete", "0.000567"],
+
+    ["Average", "BST", "Sorted", "Insert", "14.745275"],
+    ["Average", "BST", "Sorted", "Search", "0.149163"],
+    ["Average", "BST", "Sorted", "Delete", "0.302392"],
+
+    ["Average", "LinkedList", "Random", "Insert", "5.302733"],
+    ["Average", "LinkedList", "Random", "Search", "0.079588"],
+    ["Average", "LinkedList", "Random", "Delete", "0.052027"],
+
+    ["Average", "HashTable", "Random", "Insert", "0.121933"],
+    ["Average", "HashTable", "Random", "Search", "0.000976"],
+    ["Average", "HashTable", "Random", "Delete", "0.000591"],
+
+    ["Average", "BST", "Random", "Insert", "0.205333"],
+    ["Average", "BST", "Random", "Search", "0.000375"],
+    ["Average", "BST", "Random", "Delete", "0.002267"]
+    ]
+with open("results.csv", "w", newline="") as f:
+    writer = csv.writer(f)
+    writer.writerows(results)