Non-decreasing Array

array

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

Example 2

Input: nums = [4,2,1]
Output: false
You cannot get a non-decreasing array by modifying at most one element.

n == nums.length

1 <= n <= 10 ^4

-10 ^5 <= nums[i] <= 10 ^5

🤔

Medium

Difficulty

Topic Info

ModuleDSA

CategoryArray