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OI-codes/Luogu/P3871/P3871.cpp

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#include <bits/stdc++.h>
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using namespace std;
int main() {
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int n, m, t;
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string op;
vector<int> nums;
cin >> n;
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for (int i = 0; i < n; i++) {
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cin >> t;
nums.insert(lower_bound(nums.begin(), nums.end(), t), t);
}
cin >> m;
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for (int i = 0; i < m; i++) {
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cin >> op;
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if (op == "add") {
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cin >> t;
nums.insert(lower_bound(nums.begin(), nums.end(), t), t);
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} else {
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cout << nums[nums.size() / 2 - (nums.size() & 1 ^ 1)] << endl;
}
}
return 0;
}