Maximum Unsorted Subarray

You are given an array (zero indexed) of N non-negative integers, A0, A1 ,…, AN-1.
Find the minimum sub array Al, Al+1 ,…, Ar so if we sort(in ascending order) that sub array, then the whole array should get sorted.
If A is already sorted, output -1.

Example :

Input 1:

A = [1, 3, 2, 4, 5]

Return: [1, 2]

Input 2:

A = [1, 2, 3, 4, 5]

Return: [-1]

In the above example(Input 1), if we sort the subarray A1, A2, then whole array A should get sorted.

Interview Code Editor
Hints
  • Hint 1
  • Solution Approach
  • Complete Solution
439 successful submissions.
Click here to jump start your coding interview preparation