What is the time complexity of LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays?

The Python solution on this page runs in O(n \times \log n).

What is the space complexity of LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays?

The Python solution on this page uses O(\log n), where n is the length of the array arr auxiliary space.

Make Two Arrays Equal by Reversing Subarrays — LeetCode 1460 Python Solution

EasyArrayHash TableSorting

Problem: #1460
Pattern: Sorting
Reading time: 2 min
Source: leetcode.com

The problem

You are given two integer arrays of equal length target and arr. In one step, you can select any non-empty subarray of arr and reverse it.

Example

Input: target = [1,2,3,4], arr = [2,4,1,3]
Output: true
Explanation: You can follow the next steps to convert arr to target:

Python solution

Python

class Solution:
    def canBeEqual(self, target: List[int], arr: List[int]) -> bool:
        return sorted(target) == sorted(arr)

Complexity

Measure	Complexity
Time	O(n \times \log n)
Space	O(\log n), where n is the length of the array arr auxiliary

Pattern: Sorting

Spend O(n log n) once to buy an ordering that makes the rest of the problem trivial. LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays is filed here because LeetCode tags it Sorting, which is the vocabulary this hub collects.

The sorting guide has the Python template for the pattern and the 401 LeetCode problems that use it.

Frequently asked questions

How hard is LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays?: LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays is rated Easy on LeetCode.
What is the time complexity of LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays?: The Python solution on this page runs in O(n \times \log n).
What is the space complexity of LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays?: The Python solution on this page uses O(\log n), where n is the length of the array arr auxiliary space.
What topics does LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays cover?: LeetCode 1460. Make Two Arrays Equal by Reversing Subarrays is tagged Array, Hash Table and Sorting on LeetCode.