#1460

Make Two Arrays Equal by Reversing Subarrays

newbie · 230 · lc easy +17 · verified · 75.8% accepted · 1,524 likes · top 87%

Description

You have two equal-length integer arrays target and arr. In each step, you may choose any non-empty contiguous subarray of arr and reverse it; you may do this any number of times. Determine whether it is possible to transform arr into target and return true or false accordingly.

Example 1:

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:

1- Reverse subarray [2,4,1], arr becomes [1,4,2,3]

2- Reverse subarray [4,2], arr becomes [1,2,4,3]

3- Reverse subarray [4,3], arr becomes [1,2,3,4]

There are multiple ways to convert arr to target, this is not the only way to do so.

Example 2:

Input: target = [7], arr = [7]

Output: true

Explanation: arr is equal to target without any reverses.

Example 3:

Input: target = [3,7,9], arr = [3,7,11]

Output: false

Explanation: arr does not have value 9 and it can never be converted to target.

Code

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

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