Given a Integer list, sort by unit digits.
Input : test_list = [76, 434, 23, 22342]
Output : [22342, 23, 434, 76]
Explanation : 2 < 3 < 4 < 6, sorted by unit digits.Input : test_list = [76, 4349, 23, 22342]
Output : [22342, 23, 76, 4349]
Explanation : 2 < 3 < 6 < 9, sorted by unit digits.
Method #1 : Using sort() + str()
In this, we perform sort using sort() and str() is used to convert integers to string, and then sort by last digit.
Python3
# Python3 code to demonstrate working of# Sort by Units Digit in List# Using sort() + str() # helpr_fnc to sort def unit_sort(ele): # get last element return str(ele)[-1] # initializing liststest_list = [76, 434, 23, 22342] # printing original listsprint("The original list is : " + str(test_list)) # inplace sort by unit digitstest_list.sort(key=unit_sort) # printing resultprint("The unit sorted list : " + str(test_list)) |
Output:
The original list is : [76, 434, 23, 22342] The unit sorted list : [22342, 23, 434, 76]
Method #2 : Using sorted() + lambda + str()
In this, we perform task of sorting using sorted() and lambda function is used to avoid external function call.
Python3
# Python3 code to demonstrate working of# Sort by Units Digit in List# Using sorted() + lambda + str() # initializing liststest_list = [76, 434, 23, 22342] # printing original listsprint("The original list is : " + str(test_list)) # inplace sort by unit digitsres = sorted(test_list, key=lambda sub: str(sub)[-1]) # printing resultprint("The unit sorted list : " + str(res)) |
Output:
The original list is : [76, 434, 23, 22342] The unit sorted list : [22342, 23, 434, 76]
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