Python pygorithm模塊用法示例【常見算法測試】

發(fā)布時(shí)間：2020-09-29 20:22:12 來源：腳本之家閱讀：180 作者：噴跑的豆子欄目：開發(fā)技術(shù)

本文實(shí)例講述了Python pygorithm模塊用法。分享給大家供大家參考，具體如下：

pygorithm：一個(gè)用純粹python編寫的Python模塊，用于純粹的教育目的。只需導(dǎo)入所需的算法即可獲取代碼，時(shí)間復(fù)雜度等等。開始學(xué)習(xí)Python編程的好方法。了解Python中所有主要算法的實(shí)現(xiàn)。不需要上網(wǎng)就可以獲得所需的代碼。

安裝

pip3 install pygorithm

常見函數(shù)

斐波那契數(shù)列

from pygorithm.fibonacci import recursion
result = recursion.get_sequence(10)
print(result)    # [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
code = recursion.get_code()   # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

獲取最小公倍數(shù)

from pygorithm.math import lcm
result = lcm.lcm([4,6])
print(result)    # 12
code = lcm.get_code()      # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

質(zhì)數(shù)算法

from pygorithm.math import sieve_of_eratosthenes
result = sieve_of_eratosthenes.sieve_of_eratosthenes(10)  # 獲取小于10的質(zhì)數(shù)
print(result)    # [2,3,5,7]
code = lcm.get_code()      # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

階乘

from pygorithm.math import factorial
result = factorial.factorial(5)   # 獲取5的階乘，即1*2*3*4*5
print(result)    # 120
code = factorial.get_code()   # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

十進(jìn)制轉(zhuǎn)二進(jìn)制

from pygorithm.math import conversion
result = conversion.decimal_to_binary(3)  # 將3轉(zhuǎn)換為二進(jìn)制
print(result)    # 11
code = conversion.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

二進(jìn)制轉(zhuǎn)十進(jìn)制

from pygorithm.math import conversion
result = conversion.binary_to_decimal(11)  # 將11轉(zhuǎn)換為十進(jìn)制
print(result)    # 3
code = conversion.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

十進(jìn)制轉(zhuǎn)十六進(jìn)制

from pygorithm.math import conversion
result = conversion.decimal_to_hex(15)   # 將15轉(zhuǎn)換為十六進(jìn)制數(shù)
print(result)    # F
code = conversion.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

十六進(jìn)制轉(zhuǎn)十進(jìn)制

from pygorithm.math import conversion
result = conversion.hex_to_decimal("F")   # 將十六進(jìn)制F轉(zhuǎn)化為十進(jìn)制數(shù)
print(result)    # 15
code = conversion.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

二分法搜索：效率高

from pygorithm.searching import binary_search
l = [9,4,5,1,7]
index = binary_search.search(l,5)   # 獲取5在列表中的位置，找到返回下標(biāo)，找不到返回False
print(index)
code = binary_search.get_code() # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

線性搜索：速度慢，適用性廣

from pygorithm.searching import linear_search
l = [9,4,5,1,7]
index = linear_search.search(l,5)    # 獲取5在列表中的位置，找到返回下標(biāo)，找不到返回False
print(index)
code = linear_search.get_code() # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

插值搜索：注意：列表必須先經(jīng)過升序排序，否則將找不到

from pygorithm.searching import interpolation_search
l = [1,4,5,7,9]
index = interpolation_search.search(l,4)  # 獲取5在列表中的位置，找到返回下標(biāo)，找不到返回False
print(index)
code = interpolation.get_code() # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

冒泡排序

from pygorithm.sorting import bubble_sort
l = [9,4,5,1,7]
result = bubble_sort.sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = bubble_sort.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

改良冒泡排序

from pygorithm.sorting import bubble_sort
l = [9,4,5,1,7]
result = bubble_sort.improved_sort(l)
print(result)    # [1, 4, 5, 7, 9]

桶排序

from pygorithm.sorting import bucket_sort
l = [9,4,5,1,7]
result = bucket_sort.sort(l,5) # 5為桶的大小，默認(rèn)為5
print(result)    # [1, 4, 5, 7, 9]
code = bucket_sort.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

計(jì)數(shù)排序

from pygorithm.sorting import counting_sort
l = [9,4,5,1,7]
result = counting_sort.sort(l) 
print(result)    # [1, 4, 5, 7, 9]
code = counting_sort.get_code() # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

堆排序

from pygorithm.sorting import heap_sort
l = [9,4,5,1,7]
result = heap_sort.sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = heap_sort.get_code()   # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

插入排序

from pygorithm.sorting import insertion_sort
l = [9,4,5,1,7]
result = insertion_sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = insertion_sort.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

歸并排序

from pygorithm.sorting import merge_sort
l = [9,4,5,1,7]
result = merge_sort.sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = merge_sort.get_code()    # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

快速排序

from pygorithm.sorting import quick_sort
l = [9,4,5,1,7]
result = quick_sort.sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = quick_sort.get_code()    # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

選擇排序

from pygorithm.sorting import selection_sort
l = [9,4,5,1,7]
result = selection_sort.sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = selection_sort.get_code()  # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

希爾排序

from pygorithm.sorting import shell_sort
l = [9,4,5,1,7]
result = shell_sort.sort(l)
print(result)    # [1, 4, 5, 7, 9]
code = shell_sort.get_code()    # 獲取實(shí)現(xiàn)函數(shù)的算法
print(code)

更多經(jīng)典算法: http://pygorithm.readthedocs.io/en/latest/index.html

更多關(guān)于Python相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《Python數(shù)據(jù)結(jié)構(gòu)與算法教程》、《Python編碼操作技巧總結(jié)》、《Python函數(shù)使用技巧總結(jié)》、《Python字符串操作技巧匯總》及《Python入門與進(jìn)階經(jīng)典教程》

希望本文所述對(duì)大家Python程序設(shè)計(jì)有所幫助。

向AI問一下細(xì)節(jié)

Python pygorithm模塊用法示例【常見算法測試】

猜你喜歡

最新資訊

相關(guān)推薦

相關(guān)標(biāo)簽