- Difficulty: Hard
- Tags: LeetCode, Hard, Segment Tree, Array, leetcode-2569, O(nlogn + m + qlogn), O(n)
Problem
You are given two 0-indexed arrays nums1
and nums2
and a 2D array queries
of queries. There are three types of queries:
- For a query of type 1,
queries[i] = [1, l, r]
. Flip the values from0
to1
and from1
to0
innums1
from indexl
to indexr
. Bothl
andr
are 0-indexed. - For a query of type 2,
queries[i] = [2, p, 0]
. For every index0 <= i < n
, setnums2[i] = nums2[i] + nums1[i] * p
. - For a query of type 3,
queries[i] = [3, 0, 0]
. Find the sum of the elements innums2
.
Return an array containing all the answers to the third type queries.
Example 1:
Input: nums1 = [1,0,1], nums2 = [0,0,0], queries = [[1,1,1],[2,1,0],[3,0,0]] Output: [3] Explanation: After the first query nums1 becomes [1,1,1]. After the second query, nums2 becomes [1,1,1], so the answer to the third query is 3. Thus, [3] is returned.
Example 2:
Input: nums1 = [1], nums2 = [5], queries = [[2,0,0],[3,0,0]] Output: [5] Explanation: After the first query, nums2 remains [5], so the answer to the second query is 5. Thus, [5] is returned.
Constraints:
1 <= nums1.length,nums2.length <= 105
nums1.length = nums2.length
1 <= queries.length <= 105
queries[i].length = 3
0 <= l <= r <= nums1.length - 1
0 <= p <= 106
0 <= nums1[i] <= 1
0 <= nums2[i] <= 109