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#include "leetcode.h"
class Solution {
public:
vector<int> sumEvenAfterQueries(vector<int> &nums, vvd(int) & queries) {
int evenSum = 0;
for (auto x : nums)
if (x % 2 == 0)
evenSum += x;
vector<int> ans;
for (auto q : queries) {
int val = q[0], idx = q[1];
if (nums[idx] % 2 == 0)
evenSum -= nums[idx];
nums[idx] += val;
if (nums[idx] % 2 == 0)
evenSum += nums[idx];
ans.push_back(evenSum);
}
return ans;
}
};
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