Package g0701_0800.s0769_max_chunks_to_make_sorted

Class Solution

java.lang.Object
g0701_0800.s0769_max_chunks_to_make_sorted.Solution
public class Solution extends Object
769 - Max Chunks To Make Sorted.

Medium

You are given an integer array arr of length n that represents a permutation of the integers in the range [0, n - 1].

We split arr into some number of chunks (i.e., partitions), and individually sort each chunk. After concatenating them, the result should equal the sorted array.

Return the largest number of chunks we can make to sort the array.

Example 1:

Input: arr = [4,3,2,1,0]

Output: 1

Explanation:

 Splitting into two or more chunks will not return the required result.
 For example, splitting into [4, 3], [2, 1, 0] will result in [3, 4, 0, 1, 2], which isn't sorted.

Example 2:

Input: arr = [1,0,2,3,4]

Output: 4

Explanation:

 We can split into two chunks, such as [1, 0], [2, 3, 4].
 However, splitting into [1, 0], [2], [3], [4] is the highest number of chunks possible.

Constraints:

  • n == arr.length
  • 1 <= n <= 10
  • 0 <= arr[i] < n
  • All the elements of arr are unique.

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • maxChunksToSorted

      public int maxChunksToSorted(int[] arr)