def BucketSort(nums, defaultBucketSize=100):
"""
桶排序
:param nums: 输入的待排序数组
:param defaultBucketSize: 桶数目，不指定时为5
:return: inplace 操作
"""
maxVal, minVal = max(nums), min(nums)
bucketSize = defaultBucketSize # 如果没有指定桶的大小，则默认为5
bucketCount = ((maxVal - minVal) // bucketSize) + 1 # 数据分为 bucketCount 组
buckets = [] # 二维桶
for i in range(bucketCount):
buckets.append([])
# 利用函数映射将各个数据放入对应的桶中
for num in nums:
buckets[(num - minVal) // bucketSize].append(num)
nums.clear() # 清空 nums
# print(buckets)
# 对每一个二维桶中的元素进行排序
for bucket in buckets:
QuickSort(bucket) # 使用快速排序
nums.extend(bucket) # 将排序好的桶依次放入到 nums 中
def test_quick_sort(self) -> None:
elements: List[int] = []
#random.seed(a=1)
elements = [random.randrange(0, 101) for _ in range(100)]
#elements = [75, 10, 92, 92, 35]
print('Elements are :{}'.format(elements))
qs = QuickSort()
sorted_elements = qs.sort(elements)
print('Elements after sorting are : {}'.format(elements))
elements.sort()
self.assertEqual(elements, sorted_elements)
def quick_sort_in_threadings(self, t, nums):
n = len(nums)
ts = []
qs = []
for i in range(t):
qs.append(QuickSort(nums[i * n // t:(i + 1) * n // t]))
ts.append(Thread(target=lambda: qs[i].sort()))
ts[i].start()
for t in ts:
t.join()
return self.merge_n_sorted_arrays(list(map(lambda q: q.nums, qs)))
def test_bin_search(test_args, expected):
"""The list is first sorted with a custom quick search,
then a binary search occurs
param: n - Length of entered list (int)
param: b_search - result of binary search
"""
print(test_args)
n = len(test_args) - 1
test_sort = QuickSort()
test_sort.quickSort(test_args, 0, n)
b_search = BinarySearch().bin_search(test_args, 12)
assert b_search == expected
def run_quick_sort():
ll = list(np.random.randint(
-10, 10,
15)) # [7, 6, 5, 4, 3, 2, 1] # np.random.randint(-10, 10, 10)#
print(ll)
qs = QuickSort(ll)
res = qs.sort()
print("QuickSort")
print()
print(f"before: {ll}")
print(f"after: {res}")
print()
def do_sort_user(self, key=None):
"""sort user table with desired key"""
if hasattr(self, 'user_data'):
if key is None:
key = input("Enter a field through which you want to sort :")
else:
key = key
sort_obj = QuickSort()
result_set = sort_obj.resultset(self.user_data)
sorted_data = sort_obj.sort(result_set, key=key)
self.__class__.print_func(self, sorted_data)
print(f"Sorted using {key}")
else:
self.do_all_users(self)
self.do_sort_user(key=key)
def check_sort(original):
numbers = original[:]
qs = QuickSort(numbers)
output = qs.sort()
print(output)
if is_sorted(output):
print("** SUCCESS! **")
else:
print("Uh oh - not in order.")
if contain_same_ints(original, numbers):
print("** Contain the same elements! **")
else:
print("Uh oh - something is missing.")
print("---")
def do_search_user(self, item=None):
"""Search user profile."""
if not item:
key = input("Provide the key to search item :")
item = input(f"Provide {key} of user to be searched :")
try:
item = int(item)
except:
item = item
else:
key = 'id'
item = int(item)
self.do_all_users(self)
sort_obj = QuickSort()
result_set = sort_obj.resultset(self.user_data)
sorted_data = sort_obj.sort(result_set, key=key)
search_obj = BinarySearch()
data = search_obj.search(sorted_data, item, key=key)
print(data)
def main():
data = []
random.seed(time.time())
data = [_ for _ in range(0, 20)]
random.shuffle(data)
# data = [40] * 40
# data = [_ for _ in reversed(range(40))]
print('source: {0}'.format(data))
start = time.time()
qs = QuickSort(debug=True, save_fig=True)
swap_times, fig_path = qs.sort(data)
save_gif(fig_path, 'quick_sort.gif')
stop = time.time()
print('result: {0}\n'.format(data))
print('----------------------------------')
print('swap times: {0}'.format(swap_times))
print('spend time: {0}s'.format(stop - start))
print('image path: {0}'.format(fig_path))
print('----------------------------------')
def main():
original = [325432, 989, 547510, 3, -93, 189019, 5042, 123,
597, 42, 7506, 184, 184, 2409, 45, 824,
4, -2650, 9, 662, 3928, -170, 45358, 395,
842, 7697, 110, 14, 99, 221]
numbers = original[:]
qs = QuickSort(numbers)
output = qs.sort()
if is_sorted(output):
print("** SUCCESS! **")
else:
print("Uh oh - not in order.")
if contain_same_ints(original, numbers):
print("** Contain the same elements! **")
else:
print("Uh oh - something is missing.")
print(output)
insert = np.zeros(shape=(100 * repetitions, 5))
array_index = 0
for k in range(0, repetitions):
for n in range(100, 10100, 100):
random_data = random.sample(range(n), n)
qsort_data = random_data
merge_data = random_data
insert_data = random_data
dqsort_data = random_data
# Perform QuickSort on our randomly-generated data
q_sorting = QuickSort()
start = time.time()
q_sorting.quick_sort(qsort_data, 0, len(qsort_data) - 1)
end = time.time()
elapsed = end - start
qsort[array_index] = [
k, n, q_sorting._compares, q_sorting._shifts, elapsed
]
# Perform MergeSort on our randomly-generated data
m_sorting = MergeSort()
start = time.time()
result = m_sorting.mergesort_asc(merge_data)
from utils import algorithms.CArray
from selection_sort import selection_sort
from bubble_sort import bubble_sort
from insertion_sort import insertion_sort
from quick_sort import QuickSort
list = algorithms.CArray(20)
list.set_data()
print('///// ARRAY TO ORDER /////')
print(list.data_store)
print('//////////////////////////')
print('QuickSort')
sortable_array = QuickSort(list.data_store)
sortable_array.quick_sort(0, len(list.data_store) - 1)
print(sortable_array.array)
print('BubbleSort')
print(bubble_sort(list.data_store))
print('SelectionSort')
print(selection_sort(list.data_store))
print('InsertionSort')
print(insertion_sort(list.data_store))
import numpy as np
import matplotlib.pyplot as plt
get_ipython().run_line_magic('matplotlib', 'inline')
# In[3]:
import random
import sys
# ## Generate Data and Sort
# In[24]:
isort = InsertSort([])
msort = MergeSort([])
qsort = QuickSort([])
i_runtime = []
m_runtime = []
q_runtime = []
i_jmptime = []
m_jmptime = []
q_jmptime = []
i_cmprtime = []
m_cmprtime = []
q_cmprtime = []
# In[25]:
from abstract_sort import AbstractSort
from bubble_sort import BubbleSort
from quick_sort import QuickSort
from heap_sort import HeapSort
from python_sort import PythonSort
from sort_time_complexity import SortTimeComplexity
if __name__ == '__main__':
stc = SortTimeComplexity()
stc.run_sorter_tests(BubbleSort())
stc.run_sorter_tests(QuickSort())
stc.run_sorter_tests(HeapSort())
stc.run_sorter_tests(PythonSort())
stc.display_plot()
def quick_sort(self, nums):
instance = QuickSort(nums)
instance.sort()
def test_quick_sort_negative():
actual = QuickSort(arr=[2, -4, 5, 3, 8],
left=0,
right=len([-4, 2, 3, 5, 8]) - 1)
expected = [-4, 2, 3, 5, 8]
assert actual == expected
from quick_sort import QuickSort my_list = [4, 6, 44, 57, 1, 77, 32, 11, 33, 3, 4] qc = QuickSort(my_list) print(qc.partition()) qc.quick_sort() print(my_list)
def test_quick_sort_duplicated_number():
actual = QuickSort(arr=[2, 5, 5, 3, 5],
left=0,
right=len([2, 5, 5, 3, 5]) - 1)
expected = [2, 3, 5, 5, 5]
assert actual == expected
from radix_sort import RadixSort
from heap_sort import HeapSort
from merge_sort import MergeSort
from quick_sort import QuickSort
from bubble_sort import BubbleSort
from selection_sort import SelectionSort
from insertion_sort import InsertionSort
from time import time
import random
options = {
1: ("Bubble Sort", BubbleSort()),
2: ("Selection Sort", SelectionSort()),
3: ("Insertion Sort", InsertionSort()),
4: ("Quick Sort", QuickSort()),
5: ("Merge Sort", MergeSort()),
6: ("Radix Sort", RadixSort()),
7: ("Counting Sort", CountingSort()),
8: ("Heap Sort", HeapSort())
}
print("Sorting Options: ")
for i in options.keys():
print("Option {} : {}".format(i, options[i][0]))
while True:
option = int(input("Enter sorting option: "))
sort_alg = options[option][1]
start = time()
arr = [random.randint(-100000, 100000) for _ in range(10)]
print(arr)
sort_alg.sort(arr)
def test_quick_sort():
actual = QuickSort(arr=[2, 4, 5, 3, 8],
left=0,
right=len([2, 3, 4, 5, 8]) - 1)
expected = [2, 3, 4, 5, 8]
assert actual == expected
from sort import Sort from insert_sort import InsertSort from merge_sort import MergeSort from quick_sort import QuickSort import numpy as np import matplotlib.pyplot as plt import random import sys rdmlist = np.random.randint(100, size=10) asdlist = list(range(1, 901)) # print(rdmlist) #isort = InsertSort(rdmlist) #msort = MergeSort(rdmlist) qsort = QuickSort(asdlist) # isort.time(isort.insert_sort) qsort.time(qsort.quick_sort) print(qsort.run_time)
def __init__(self):
self.graph = CityGraph()
self.quick_sort = QuickSort()
self.merge_sort = MergeSort()
def test_quick_sort_sortedd_reverse():
actual = QuickSort(arr=[12, 9, 7, 5, 2],
left=0,
right=len([12, 9, 7, 5, 2]) - 1)
expected = [2, 5, 7, 9, 12]
assert actual == expected
def test_quick_sort(self):
algo = SortingTestWrapper(QuickSort(), self.n, self.seed)
self.assertListEqual(algo.integer_sort(), self.verification.integer_sort())
def fn_quick_sort(input, output, start):
q_sort = QuickSort()
q_sort.quick_sort(0, len(input) - 1, input)
assert input == output
end = time.time()
