Update and rename sort_list_based_on_another_list.md to sort_by_indexes.md
This commit is contained in:
committed by
GitHub
parent
a1357e543d
commit
6f8dd5e941
20
snippets/sort_by_indexes.md
Normal file
20
snippets/sort_by_indexes.md
Normal file
@ -0,0 +1,20 @@
|
||||
---
|
||||
title: sort_by_indexes
|
||||
tags: list,sort,intermediate
|
||||
---
|
||||
|
||||
Sorts one list based on another list containing the desired indexes.
|
||||
|
||||
Use `zip()` and `sorted()` to combine and sort the two lists, based on the values of `indexes`.
|
||||
Use a list comprehension to get the first element of each pair from the result.
|
||||
|
||||
```py
|
||||
def sort_by_indexes(lst, indexes):
|
||||
return [val for _, val in sorted(zip(indexes, lst), key = lambda x: x[0])]
|
||||
```
|
||||
|
||||
```py
|
||||
a = ['eggs', 'bread', 'oranges', 'jam', 'apples', 'milk']
|
||||
b = [3, 2, 6, 4, 1, 5]
|
||||
sort_by_indexes(a, b) # ['apples', 'bread', 'eggs', 'jam', 'milk', 'oranges']
|
||||
```
|
||||
@ -1,19 +0,0 @@
|
||||
---
|
||||
title: sort_list_based_on_another_list
|
||||
tags: list,sort,intermediate
|
||||
---
|
||||
|
||||
Sorts one list based on given indices in another list and returns the sorted list of values.
|
||||
|
||||
Use list comprehension to get values after using `zip` and `sorted` function based on given `key` with lambda function that returns the index.
|
||||
|
||||
```py
|
||||
def sort_list_based_on_another_list(list_to_sort, index_list):
|
||||
return [val for i, val in sorted(zip(index_list, list_to_sort), key = lambda x: x[0])]
|
||||
```
|
||||
|
||||
```py
|
||||
a = ['eggs', 'bread', 'oranges', 'jam', 'apples', 'milk']
|
||||
b = [3, 2, 6, 4, 1, 5]
|
||||
sort_list_based_on_another_list(a, b) # ['apples', 'bread', 'eggs', 'jam', 'milk', 'oranges']
|
||||
```
|
||||
Reference in New Issue
Block a user