You are given an integer array nums
of length n
and a 2D array queries
, where queries[i] = [li, ri]
.
For each queries[i]
:
[li, ri]
in nums
.A Zero Array is an array where all elements are equal to 0.
Return true
if it is possible to transform nums
into a Zero Array after processing all the queries sequentially, otherwise return false
.
Example 1:
Input: nums = [1,0,1], queries = [[0,2]]
Output: true
Explanation:
[0, 2]
and decrement the values at these indices by 1.[0, 0, 0]
, which is a Zero Array.Example 2:
Input: nums = [4,3,2,1], queries = [[1,3],[0,2]]
Output: false
Explanation:
[1, 2, 3]
and decrement the values at these indices by 1.[4, 2, 1, 0]
.[0, 1, 2]
and decrement the values at these indices by 1.[3, 1, 0, 0]
, which is not a Zero Array.
Constraints:
1 <= nums.length <= 105
0 <= nums[i] <= 105
1 <= queries.length <= 105
queries[i].length == 2
0 <= li <= ri < nums.length