Package g0601_0700.s0665_non_decreasing_array

Class Solution

java.lang.Object
g0601_0700.s0665_non_decreasing_array.Solution
public class Solution extends Object
665 - Non-decreasing Array.

Medium

Given an array nums with n integers, your task is to check if it could become non-decreasing by modifying at most one element.

We define an array is non-decreasing if nums[i] <= nums[i + 1] holds for every i ( 0-based ) such that (0 <= i <= n - 2).

Example 1:

Input: nums = [4,2,3]

Output: true

Explanation: You could modify the first 4 to 1 to get a non-decreasing array.

Example 2:

Input: nums = [4,2,1]

Output: false

Explanation: You can’t get a non-decreasing array by modify at most one element.

Constraints:

  • n == nums.length
  • 1 <= n <= 104
  • -105 <= nums[i] <= 105

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • checkPossibility

      public boolean checkPossibility(int[] nums)