Apply Operations to Make All Array Elements Equal to Zero
You are given a 0-indexed integer array nums and a positive integer k.
You can apply the following operation on the array any number of times:
- Choose any subarray of size
kfrom the array and decrease all its elements by1.
Return true if you can make all the array elements equal to 0, or false otherwise.
A subarray is a contiguous non-empty part of an array.
Example 1
Input
nums = [2,2,3,1,1,0], k = 3Output
trueBy repeatedly decreasing valid subarrays of size 3, the array can be transformed into all zeros.
Example 2
Input
nums = [1,3,1,1], k = 2Output
falseIt is not possible to make all the array elements equal to 0.
Constraints
- 1 <= k <= nums.length <= 10^5
- 0 <= nums[i] <= 10^6