''' mbinary ######################################################################### # File : radixSort.py # Author: mbinary # Mail: zhuheqin1@gmail.com # Blog: https://mbinary.xyz # Github: https://github.com/mbinary # Created Time: 2018-07-06 15:52 # Description: ######################################################################### ''' def radixSort(lst,radix=10): ls = [[] for i in range(radix)] mx = max(lst) weight = 1 while mx >= weight: for i in lst: ls[(i // weight)%radix].append(i) weight *= radix lst = sum(ls,[]) ls = [[] for i in range(radix)] return lst def countSort(lst,mn,mx): mark = [0]*(mx-mn+1) for i in lst: mark[i-mn]+=1 ret =[] for n,i in enumerate(mark): ret +=[n+mn]*i return ret from quickSort import quickSort from time import time from random import randint def timer(funcs,span,num=1000000): lst = [randint(0,span) for i in range(num)] print('range({}), {} items'.format(span,num)) for func in funcs: data = lst.copy() t = time() func(data) t = time()-t print('{}: {}s'.format(func.__name__,t)) if __name__ == '__main__': timer([quickSort,radixSort,sorted],1000000000000,1000) timer([quickSort,radixSort,sorted],10000,100000) lst = [randint(0,100) for i in range(1000)] print(countSort(lst,0,100)==sorted(lst))