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2026-rff_mp/osininyai/[1] data-structures/[1]MP_linked_list.py

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[1] initial commit
2026-05-21 10:43:45 +00:00
from MP_records import records
import random as rd
import time
import csv
import codecs
def insert(lisst,name,phone):
if len(lisst)==0:
entry={"name":name,"phone":phone,"next":None}
lisst.append(entry)
return lisst
else:
entry={"name":name,"phone":phone,"next":None}
if lisst[0]["phone"]==phone:
lisst[0]["name"]=name
return lisst
if lisst[0]["next"]==None:
lisst[0]["next"]=entry
return lisst
else:
nexxt=lisst[0]["next"]
if nexxt["phone"]==phone:
nexxt["name"]=name
return lisst
while nexxt["next"]!=None:
nexxt=nexxt["next"]
if nexxt["phone"]==phone:
nexxt["name"]=name
return lisst
nexxt["next"]=entry
return lisst
def find(lisst, name):
if len(lisst)>0:
if lisst[0]["name"]==name:
return lisst[0]["phone"]
elif lisst[0]["next"]!=None:
nexxt=lisst[0]["next"]
while nexxt["next"]!=None:
if nexxt["name"]==name:
return nexxt["phone"]
else:
nexxt=nexxt["next"]
if nexxt["name"]==name:
return nexxt["phone"]
return None
def delete(lisst,name):
if len(lisst)>0:
if lisst[0]["name"]==name:
if lisst[0]["next"]!=None:
lisst[0]=lisst[0]["next"]
return lisst
else:
lisst.pop()
return lisst
elif lisst[0]["next"]!=None:
if lisst[0]["next"]["name"]==name:
if lisst[0]["next"]["next"]!=None:
lisst[0]["next"]=lisst[0]["next"]["next"]
return lisst
else:
lisst[0]["next"]=None
return lisst
elif lisst[0]["next"]["next"]!=None:
nexxt1=lisst[0]["next"]
nexxt2=nexxt1["next"]
if nexxt2["name"]==name:
if nexxt2["next"]!=None:
nexxt1["next"]=nexxt2["next"]
return lisst
else:
nexxt1["next"]=None
return lisst
while nexxt2["next"]!=None:
nexxt1=nexxt2
nexxt2=nexxt1["next"]
if nexxt2["name"]==name:
if nexxt2["next"]!=None:
nexxt1["next"]=nexxt2["next"]
return lisst
else:
nexxt1["next"]=None
return lisst
def bad_sort(names,phones):
names1=[]
phones1=[]
while len(names)>0:
min_=names[0].encode()
ph=phones[0]
for i in range(len(names)):
nm=names[i].encode()
if nm<min_:
min_=nm
ph=phones[i]
#print(min_.decode()," - ",ph)
names1.append(min_.decode())
phones1.append(ph)
names.remove(min_.decode())
phones.remove(ph)
#print(names1,"\n",phones1)
return names1, phones1
def Shell(names,phones):
N = len(names)
n = N // 2
while n>0:
for i in range (0,N-n):
j=i
while j+n<N:
if (names[j].encode())>(names[j+n].encode()):
t=names[j]
t1=phones[j]
names[j]=names[j+n]
phones[j]=phones[j+n]
names[j+n]=t
phones[j+n]=t1
j=i
else:
j+=n
n=n//2
return names,phones
def list_all(lisst):
names=[]
phones=[]
if len(lisst)>0:
names.append(lisst[0]["name"])
phones.append(lisst[0]["phone"])
nexxt=lisst[0]["next"]
while nexxt!=None:
names.append(nexxt["name"])
phones.append(nexxt["phone"])
nexxt=nexxt["next"]
else:
print("List is empty")
return
names1, phones1 = bad_sort(names,phones)
#names1, phones1 = Shell(names,phones)
for i in range(len(names1)):
print(names1[i]," - ",phones1[i],end='')
if i%4==0:
print("\n")
else:
print(", ",end='')
print("\n")
def test():
lisst=[]
insert(lisst,"Abba",1)
insert(lisst,"Cafr",43)
insert(lisst,"Babba",2)
insert(lisst,"V",2)
insert(lisst,"Babadsaba",3)
insert(lisst,"Cabr",34)
insert(lisst,"Aaaaa",4)
insert(lisst,"Ba",5)
a=find(lisst,"Aaaaa")
print(a)
print(lisst,'\n')
delete(lisst,"Abba")
# print(lisst,'\n')
# delete("Aaaaa")
# print(lisst,'\n')
# delete("Ba")
# print(lisst,'\n')
# delete("Babadsaba")
# print(lisst,'\n')
delete(lisst,"Aaaaa")
# print(lisst,'\n')
list_all(lisst)
print(lisst,'\n')
def run_shuffled(records_shuffled):
insertion_times=[]
finding_times=[]
deletion_times1=[]
print("Shuffled list: ")
for k in range(5):
lisst=[]
rd.shuffle(records_shuffled)
#А. Вставка всех записей
start=time.perf_counter()
for i in range(len(records_shuffled)):
insert(lisst, records_shuffled[i][0], records_shuffled[i][1])
end=time.perf_counter()
insertion_times.append(end-start)
#Б. Поиск 100 случайных записей
names=[]
for i in range(100):
index=rd.randint(0,9999)
name=lisst[0]
while index>0:
name=name["next"]
index-=1
names.append(name["name"])
for i in range(10):
names.append("A")
rd.shuffle(names)
start=time.perf_counter()
for i in range(len(names)):
find(lisst,names[i])
end=time.perf_counter()
finding_times.append(end-start)
#В. Удаление 50 случайных записей
for i in range(10):
names.remove("A")
rd.shuffle(names)
deletion_times=[]
for i in range(50):
start=time.perf_counter()
delete(lisst,names[i])
end=time.perf_counter()
ttt=end-start
deletion_times.append(ttt)
deletion_times1.append(deletion_times)
print("Run number ",k+1)
print("Insertion time: ",insertion_times[k])
print("Finding time: ",finding_times[k])
print("Deletion times: ","\n",deletion_times)
print("\n")
temp=0
for i in range(5):
temp+=insertion_times[i]
temp=temp/5
results = [
[u"Структура", u"Режим", u"Операция", u"Время (сек)"],
["LinkedList", u"случайный", u"вставка", insertion_times[0]],
["LinkedList", u"случайный", u"вставка", insertion_times[1]],
["LinkedList", u"случайный", u"вставка", insertion_times[2]],
["LinkedList", u"случайный", u"вставка", insertion_times[3]],
["LinkedList", u"случайный", u"вставка", insertion_times[4]],
[u"Структура", u"Режим", u"Операция", u"Среднее время (сек)"],
["LinkedList", u"случайный", u"вставка", temp,]
]
[1] data-structures
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with codecs.open("docs/data/[1]results.csv", "a+", "utf-16") as f:
[1] initial commit
2026-05-21 10:43:45 +00:00
writer = csv.writer(f)
writer.writerows(results)
writer.writerows("\n")
temp=0
for i in range(5):
temp+=finding_times[i]
temp=temp/5
results = [
[u"Структура", u"Режим", u"Операция", u"Время (сек)"],
["LinkedList", u"случайный", u"поиск", finding_times[0]],
["LinkedList", u"случайный", u"поиск", finding_times[1]],
["LinkedList", u"случайный", u"поиск", finding_times[2]],
["LinkedList", u"случайный", u"поиск", finding_times[3]],
["LinkedList", u"случайный", u"поиск", finding_times[4]],
[u"Структура", u"Режим", u"Операция", u"Среднее время (сек)"],
["LinkedList", u"случайный", u"поиск", temp,]
]
[1] data-structures
2026-05-21 17:55:03 +00:00
with codecs.open("docs/data/[1]results.csv", "a+", "utf-16") as f:
[1] initial commit
2026-05-21 10:43:45 +00:00
writer = csv.writer(f)
writer.writerows(results)
writer.writerows("\n")
temp=0
del_times=[]
for i in range(5):
for j in range(50):
temp+=deletion_times1[i][j]
temp=temp/50
del_times.append(temp)
temp=0
temp=0
for i in range(5):
temp+=del_times[i]
temp=temp/5
results = [
[u"Структура", u"Режим", u"Операция", u"Время (сек)"],
["LinkedList", u"случайный", u"удаление", del_times[0]],
["LinkedList", u"случайный", u"удаление", del_times[1]],
["LinkedList", u"случайный", u"удаление", del_times[2]],
["LinkedList", u"случайный", u"удаление", del_times[3]],
["LinkedList", u"случайный", u"удаление", del_times[4]],
[u"Структура", u"Режим", u"Операция", u"Среднее время (сек)"],
["LinkedList", u"случайный", u"удаление", temp,]
]
[1] data-structures
2026-05-21 17:55:03 +00:00
with codecs.open("docs/data/[1]results.csv", "a+", "utf-16") as f:
[1] initial commit
2026-05-21 10:43:45 +00:00
writer = csv.writer(f)
writer.writerows(results)
writer.writerows("\n")
writer.writerows("\n")
def run_sorted(records_shuffled):
insertion_times=[]
finding_times=[]
deletion_times1=[]
print("Sorted list: ")
for k in range(5):
lisst=[]
#А. Вставка всех записей
start=time.perf_counter()
for i in range(len(records_shuffled)):
insert(lisst, records_shuffled[i][0], records_shuffled[i][1])
end=time.perf_counter()
insertion_times.append(end-start)
#Б. Поиск 100 случайных записей
names=[]
for i in range(100):
index=rd.randint(0,9999)
name=lisst[0]
while index>0:
name=name["next"]
index-=1
names.append(name["name"])
for i in range(10):
names.append("A")
rd.shuffle(names)
start=time.perf_counter()
for i in range(len(names)):
find(lisst,names[i])
end=time.perf_counter()
finding_times.append(end-start)
#В. Удаление 50 случайных записей
for i in range(10):
names.remove("A")
rd.shuffle(names)
deletion_times=[]
for i in range(50):
start=time.perf_counter()
delete(lisst,names[i])
end=time.perf_counter()
ttt=end-start
deletion_times.append(ttt)
deletion_times1.append(deletion_times)
print("Run number ",k+1)
print("Insertion time: ",insertion_times[k])
print("Finding time: ",finding_times[k])
print("Deletion times: ","\n",deletion_times)
print("\n")
temp=0
for i in range(5):
temp+=insertion_times[i]
temp=temp/5
results = [
[u"Структура", u"Режим", u"Операция", u"Время (сек)"],
["LinkedList", u"отсортированный", u"вставка", insertion_times[0]],
["LinkedList", u"отсортированный", u"вставка", insertion_times[1]],
["LinkedList", u"отсортированный", u"вставка", insertion_times[2]],
["LinkedList", u"отсортированный", u"вставка", insertion_times[3]],
["LinkedList", u"сотсортированный", u"вставка", insertion_times[4]],
[u"Структура", u"Режим", u"Операция", u"Среднее время (сек)"],
["LinkedList", u"отсортированный", u"вставка", temp,]
]
[1] data-structures
2026-05-21 17:55:03 +00:00
with codecs.open("docs/data/[1]results.csv", "a+", "utf-16") as f:
[1] initial commit
2026-05-21 10:43:45 +00:00
writer = csv.writer(f)
writer.writerows(results)
writer.writerows("\n")
temp=0
for i in range(5):
temp+=finding_times[i]
temp=temp/5
results = [
[u"Структура", u"Режим", u"Операция", u"Время (сек)"],
["LinkedList", u"отсортированный", u"поиск", finding_times[0]],
["LinkedList", u"отсортированный", u"поиск", finding_times[1]],
["LinkedList", u"отсортированный", u"поиск", finding_times[2]],
["LinkedList", u"отсортированный", u"поиск", finding_times[3]],
["LinkedList", u"отсортированный", u"поиск", finding_times[4]],
[u"Структура", u"Режим", u"Операция", u"Среднее время (сек)"],
["LinkedList", u"отсортированный", u"поиск", temp,]
]
[1] data-structures
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with codecs.open("docs/data/[1]results.csv", "a+", "utf-16") as f:
[1] initial commit
2026-05-21 10:43:45 +00:00
writer = csv.writer(f)
writer.writerows(results)
writer.writerows("\n")
temp=0
del_times=[]
for i in range(5):
for j in range(50):
temp+=deletion_times1[i][j]
temp=temp/50
del_times.append(temp)
temp=0
temp=0
for i in range(5):
temp+=del_times[i]
temp=temp/5
results = [
[u"Структура", u"Режим", u"Операция", u"Время (сек)"],
["LinkedList", u"отсортированный", u"удаление", del_times[0]],
["LinkedList", u"отсортированный", u"удаление", del_times[1]],
["LinkedList", u"отсортированный", u"удаление", del_times[2]],
["LinkedList", u"отсортированный", u"удаление", del_times[3]],
["LinkedList", u"отсортированный", u"удаление", del_times[4]],
[u"Структура", u"Режим", u"Операция", u"Среднее время (сек)"],
["LinkedList", u"отсортированный", u"удаление", temp,]
]
[1] data-structures
2026-05-21 17:55:03 +00:00
with codecs.open("docs/data/[1]results.csv", "a+", "utf-16") as f:
[1] initial commit
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writer = csv.writer(f)
writer.writerows(results)
writer.writerows("\n")
writer.writerows("\n")
records_shuffled, records_sorted = records()
run_shuffled(records_shuffled)
run_sorted(records_sorted)
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