Menu
Vec provides a sort method (through Deref implementation), but LinkedList does not. Is there a generic algorithm somewhere in the Rust standard library that allows sorting of LinkedLists?
328
Below is a simple insertion sort algorithm for a linked list. 1) Create an empty sorted (or result) list 2) Traverse the given list, do following for every node. ......a) Insert current node in sorted way in sorted or result list. 3) Change head of given linked list to head of sorted (or result) list.
We can sort the LinkedList by many sorting techniques:Bubble sort. Insertion sort. Quick sort. Merge sort.
Merge sort is often preferred for sorting a linked list. The slow random-access performance of a linked list makes some other algorithms (such as quicksort) perform poorly, and others (such as heapsort) completely impossible.
LinkedList. The sort() method is defined in the List interface and it is a default method. Let's take an example of LinkedList and sort the objects of LinkedList. If you are not familiar with the Comparator interface then read the Comparator interface first.
I don't think there is a built-in way to do it. However, you can move the list contents into a Vec, sort it and turn it back into a linked list:
let mut vec: Vec<_> = list.into_iter().collect();
vec.sort();
let list: LinkedList<_> = vec.into_iter().collect();
This idea is not even remotely as bad as it may seem - see here. While relatively fast algorithms for sorting a linked list do exist, they won't give you as much of cache performance as flat array sorting may do.
156
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
