Easy
You are given two integer arrays of equal length target
and arr
. In one step, you can select any non-empty sub-array of arr
and reverse it. You are allowed to make any number of steps.
Return true
if you can make arr
equal to target
or false
otherwise.
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 sub-array [2,4,1], arr becomes [1,4,2,3]
2- Reverse sub-array [4,2], arr becomes [1,2,4,3]
3- Reverse sub-array [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.
Constraints:
target.length == arr.length
1 <= target.length <= 1000
1 <= target[i] <= 1000
1 <= arr[i] <= 1000
class Solution {
fun canBeEqual(target: IntArray, arr: IntArray): Boolean {
val n = target.size
target.sort()
arr.sort()
var count = 0
for (i in target.indices) {
if (target[i] == arr[i]) {
count++
}
}
return count == n
}
}