985. Sum of Even Numbers After Queries
Description
You are given an integer array nums
and an array queries
where queries[i] = [vali, indexi]
.
For each query i
, first, apply nums[indexi] = nums[indexi] + vali
, then print the sum of the even values of nums
.
Return an integer array answer
where answer[i]
is the answer to the ith
query.
Example 1:
Input: nums = [1,2,3,4], queries = [[1,0],[-3,1],[-4,0],[2,3]] Output: [8,6,2,4] Explanation: At the beginning, the array is [1,2,3,4]. After adding 1 to nums[0], the array is [2,2,3,4], and the sum of even values is 2 + 2 + 4 = 8. After adding -3 to nums[1], the array is [2,-1,3,4], and the sum of even values is 2 + 4 = 6. After adding -4 to nums[0], the array is [-2,-1,3,4], and the sum of even values is -2 + 4 = 2. After adding 2 to nums[3], the array is [-2,-1,3,6], and the sum of even values is -2 + 6 = 4.
Example 2:
Input: nums = [1], queries = [[4,0]] Output: [0]
Constraints:
1 <= nums.length <= 104
-104 <= nums[i] <= 104
1 <= queries.length <= 104
-104 <= vali <= 104
0 <= indexi < nums.length
Solutions
Solution 1
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