- 22nd Jul 2024
- 20:10 pm
This week’s portfolio activity is to write your own implementation of a sorting algorithm in Python for the LinkedList implementation for world countries and their populations available below: LinkedList implementation and starter data Make sure you sort the data in descending order from largest to smallest values, printing out both the values and the text labels. Annotate your code with comments explaining why you have chosen this algorithm, how the code works and its complexity. The program must print out the LinkedList both before and after it has been sorted.
Note 1: you can not use built-in sorting functions provided by python, it should be your own implementation of the algorithm.
Note 2: you can not change the LinkedList to a List and do the sorting on the List rather than LinkedList. class LinkedList: def __init__(self, data): self.label = data[0][0] self.value = data[0][1] self.tail = None if (len(data) == 1) else LinkedList(data[1:]) countries = LinkedList([("Ukraine",41879904),("Brunei",442400),("Christmas Island (Australia)",1928),("Mauritius",1265985),("Lesotho",2007201),("Guatemala",16604026),("British Virgin Islands (UK)",30030),("Malta",493559),("Greenland (Denmark)",56081),("Guernsey (UK)",62792),("Ethiopia",98665000),("Suriname",581372),("Turkmenistan",6031187),("American Samoa (US)",56700),("French Polynesia (France)",275918),("Equatorial Guinea",1358276),("Solomon Islands",680806),("Burundi",10953317),("Abkhazia",244832),("Rwanda",12374397),("Iceland",364260),("Monaco",38300),("Namibia",2458936),("United States",329532925),("Brazil",211402908),("Finland",5527573),("Armenia",2957500),("Wallis and Futuna (France)",11700),("Cuba",11209628),("Guyana",782766),("Oman",4664790),("Aruba (Netherlands)",112309),("Nauru",11000),("Sri Lanka",21803000),("Myanmar",54339766),("United Arab Emirates",9890400),("Hungary",9772756),("Norfolk Island (Australia)",1756),("Cambodia",15288489),("Fiji",884887),("Benin",11733059),("Egypt",100264508),("Northern Cyprus",351965),("Angola",31127674),("Barbados",287025),("Trinidad and Tobago",1363985),("Colombia",49395678),("Turks and Caicos Islands (UK)",41369),("Norway",5367580),("Kiribati",120100),("Kosovo",1795666),("Azerbaijan",10067108),("Romania",19405156),("Kyrgyzstan",6533500),("Peru",32131400),("Australia",25680766),("Faroe Islands (Denmark)",52124),("Turkey",83154997),("Georgia",3723464),("Singapore",5703600),("Eswatini",1093238),("Saint Vincent and the Grenadines",110608),("East Timor",1387149),("Tuvalu",10200),("Pakistan",219313520),("Bahrain",1543300),("Paraguay",7152703),("Jersey (UK)",106800),("Slovakia",5456362),("Mongolia",3313049),("Argentina",44938712),("Jordan",10660256),("Saint Barthélemy (France)",9793),("Andorra",77543),("Bangladesh",168456310),("Saint Martin (France)",35746),("FS Micronesia",104468),("South Sudan",12778250),("Artsakh",148000),("Slovenia",2094060),("Senegal",16209125),("Ivory
Free Project Solution - Implementation Of A Sorting Algorithm In Python
class Node:
def __init__(self, data):
# data is a tuple
self.label = data[0]
self.value = data[1]
self.tail = None
class LinkedList:
def __init__(self, data):
self.length = len(data)
self.head = Node(data[0])
current = self.head
for i in range(1, len(data)):
current.tail = Node(data[i])
current = current.tail
countries = LinkedList([("Ukraine",41879904),("Brunei",442400),("Christmas Island (Australia)",1928),("Mauritius",1265985),("Lesotho",2007201),
("Guatemala",16604026),("British Virgin Islands (UK)",30030),("Malta",493559),("Greenland (Denmark)",56081),("Guernsey (UK)",62792),
("Ethiopia",98665000),("Suriname",581372),("Turkmenistan",6031187),("American Samoa (US)",56700),("French Polynesia (France)",275918),
("Equatorial Guinea",1358276),("Solomon Islands",680806),("Burundi",10953317),("Abkhazia",244832),("Rwanda",12374397),("Iceland",364260),
("Monaco",38300),("Namibia",2458936),("United States",329532925),("Brazil",211402908),("Finland",5527573),("Armenia",2957500),
("Wallis and Futuna (France)",11700),("Cuba",11209628),("Guyana",782766),("Oman",4664790),("Aruba (Netherlands)",112309),("Nauru",11000),
("Sri Lanka",21803000),("Myanmar",54339766),("United Arab Emirates",9890400),("Hungary",9772756),("Norfolk Island (Australia)",1756),
("Cambodia",15288489),("Fiji",884887),("Benin",11733059),("Egypt",100264508),("Northern Cyprus",351965),("Angola",31127674),("Barbados",287025),
("Trinidad and Tobago",1363985),("Colombia",49395678),("Turks and Caicos Islands (UK)",41369),("Norway",5367580),("Kiribati",120100),
("Kosovo",1795666),("Azerbaijan",10067108),("Romania",19405156),("Kyrgyzstan",6533500),("Peru",32131400),("Australia",25680766),
("Faroe Islands (Denmark)",52124),("Turkey",83154997),("Georgia",3723464),("Singapore",5703600),("Eswatini",1093238),("Saint Vincent and the Grenadines",110608),
("East Timor",1387149),("Tuvalu",10200),("Pakistan",219313520),("Bahrain",1543300),("Paraguay",7152703),("Jersey (UK)",106800),("Slovakia",5456362),
("Mongolia",3313049),("Argentina",44938712),("Jordan",10660256),("Saint Barthélemy (France)",9793),("Andorra",77543),("Bangladesh",168456310),
("Saint Martin (France)",35746),("FS Micronesia",104468),("South Sudan",12778250),("Artsakh",148000),("Slovenia",2094060),("Senegal",16209125),
("Ivory Coast",25823071),("Syria",17500657),("Montserrat (UK)",4989),("Philippines",108505959),("Laos",7123205),("Gibraltar (UK)",33701),
("Iran",83371987),("Bahamas",385340),("Mauritania",4077347),("Portugal",10276617),("Madagascar",26251309),("Malawi",19129952),
("Central African Republic",5496011),("Saint Kitts and Nevis",52823),("Ghana",30280811),("Honduras",9158345),("Belarus",9408400),
("India",1361140893),("Estonia",1328360),("Nicaragua",6460411),("Mali",20250833),("Zambia",17885422),("S\u00e3o Tom\u00e9 and Pr\u00edncipe",201784),
("Cura\u00e7ao (Netherlands)",158665),("Jamaica",2726667),("Northern Mariana Islands (US)",56200),("Vanuatu",304500),("Kuwait",4420110),
("Cameroon",26545864),("Netherlands",17456281),("Saudi Arabia",34218169),("Dominican Republic",10358320),("Japan",125950000),("Djibouti",1078373),
("Antigua and Barbuda",96453),("Morocco",35871167),("Nigeria",206139587),("Iraq",39127900),("South Korea",51780579),("Pitcairn Islands (UK)",50),
("US Virgin Islands (US)",104578),("Ireland",4921500),("Sierra Leone",7901454),("Cyprus",875900),("Palestine",4976684),("Luxembourg",626108),
("Falkland Islands (UK)",3198),("France",67076000),("Bolivia",11469896),("Panama",4218808),("Seychelles",97625),("Guinea-Bissau",1604528),
("Puerto Rico (US)",3193694),("Anguilla (UK)",14869),("Macau (China)",679600),("North Macedonia",2077132),("Saint Helena, Ascension",5633),
("Sweden",10338368),("Kazakhstan",18683712),("China",1402247960),("Italy",60238522),("Israel",9186750),("Uzbekistan",34131625),
("Guam (US)",172400),("Dominica",71808),("Malaysia",32752760),("New Zealand",4978784),("Cape Verde",550483),("Uruguay",3518552),
("Belgium",11524454),("Kenya",47564296),("Saint Pierre and Miquelon (France)",6008),("Uganda",40299300),("Yemen",29825968),("Nepal",29996478),
("Switzerland",8603899),("Sint Maarten (Netherlands)",40614),("Tonga",100651),("Algeria",43000000),("Haiti",11577779),("Zimbabwe",15159624),
("North Korea",25450000),("Congo",5518092),("Belize",408487),("Czech Republic",10693939),("Poland",38379000),("San Marino",33574),("Tanzania",55890747),
("Tokelau (NZ)",1400),("Saint Lucia",178696),("Cook Islands (NZ)",15200),("Mozambique",30066648),("Indonesia",266911900),("Grenada",112003),
("Burkina Faso",20870060),("Western Sahara",582463),("New Caledonia (France)",282200),("Albania",2845955),("Greece",10724599),("Bosnia and Herzegovina",3301000),
("Montenegro",622359),("Russia",146745098),("Samoa",200874),("Comoros",873724),("United Kingdom",66435550),("Taiwan",23604265),("Vatican City",799),
("Austria",8902600),("Lebanon",6825442),("Latvia",1906800),("Mexico",126577691),("Venezuela",32219521),("Papua New Guinea",8935000),("Chad",16244513),
("Canada",37996639),("Maldives",374775),("Denmark",5822763),("Tajikistan",9127000),("Isle of Man (UK)",83314),("Afghanistan",32225560),("Germany",83149300),
("Vietnam",96208984),("Eritrea",3497117),("Spain",47100396),("Costa Rica",5058007),("Cayman Islands (UK)",65813),("Niger",22314743),("Liechtenstein",38749),
("Gambia",2347706),("Hong Kong (China)",7500700),("Sudan",42432665),("Tunisia",11722038),("\u00c5land Islands (Finland)",29885),("DR Congo",89561404),
("Bulgaria",6951482),("Liberia",4475353),("Botswana",2338851),("Palau",17900),("Niue (NZ)",1520),("Thailand",66494417),("South Africa",58775022),
("Lithuania",2793471),("Gabon",2172579),("Libya",6871287),("Transnistria",469000),("Moldova",2681735),("South Ossetia",53532),("Guinea",12218357),
("El Salvador",6486201),("Croatia",4076246),("Qatar",2747282),("Serbia",6963764),("Togo",7538000),("Ecuador",17466864),("Cocos (Keeling) Islands (Australia)",538),
("Chile",19107216),("Bermuda (UK)",64027),("Somalia",15893219),("Bhutan",741672),("Marshall Islands",55500)])
def printLL(LL):
head = LL.head
current = head
print((current.label, current.value))
while current.tail != None:
print((current.tail.label, current.tail.value))
current = current.tail
'''
Insertion sort method:
1. We first hold a temp variable
2. We then insert the smallest value from temp through
the rest of the linked list
3. Then we increment the temp variable to the tail node
'''
def ISort(LL):
current = LL.head
for _ in range(LL.length-1):
temp = current.tail
while temp:
if temp.value < current.value:
current.value, temp.value = temp.value, current.value
current.label, temp.label = temp.label, current.label
temp = temp.tail
current = current.tail
print("Before Sort\n")
printLL(countries)
ISort(countries)
print("\nAfter Sort\n")
printLL(countries)
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About The Author - Alex Gen
Alex Gen is a dedicated programmer and data scientist with a strong foundation in Python programming. In this assignment, Alex demonstrates expertise by implementing a sorting algorithm in Python, focusing on efficient and optimized solutions. With a keen interest in algorithm design and software development, Alex excels in creating robust code and solving complex problems through innovative programming techniques.
