Last active
August 29, 2015 14:15
-
-
Save sujayy1983/b9a23f8383b6da24b9fe to your computer and use it in GitHub Desktop.
Radix sorting: A non-comparitive sorting
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
""" | |
@Author: Sujayyendhiren Ramarao Srinivasamurthi | |
@Description: Radix sort my own way. | |
""" | |
def radixsort( inArr ): | |
""" | |
:param inArr: Input array for sorting | |
:return: Result is a dict of arrays indexable from 0-9. | |
""" | |
resultDict = {0:[],1:[],2:[],3:[],4:[],5:[],6:[],7:[],8:[],9:[]} | |
tempDict = resultDict | |
maxInList = 0 | |
base = 10 | |
currentDiv = 1 | |
for num in inArr: | |
if num > maxInList: | |
maxInList = num | |
for num in inArr: | |
bucket = resultDict [ (num/currentDiv) % base ] | |
bucket.append(num) | |
tempDict = resultDict | |
resultDict = {0:[],1:[],2:[],3:[],4:[],5:[],6:[],7:[],8:[],9:[]} | |
while True: | |
currentDiv *= 10 | |
print tempDict | |
for x in range(10): | |
listBucket = tempDict[x] | |
for elem in listBucket: | |
bucket = resultDict[(elem/currentDiv) % base] | |
bucket.append(elem) | |
tempDict = resultDict | |
resultDict = {0:[],1:[],2:[],3:[],4:[],5:[],6:[],7:[],8:[],9:[]} | |
if(((maxInList/currentDiv) % base)==0): | |
break | |
return tempDict | |
if __name__ == '__main__': | |
arr = [2,50,100,40,90,70,777,555] | |
result = radixsort( arr ) | |
for x in range(10) : | |
bucketList = result[x] | |
for elem in bucketList: | |
print elem, |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment