#include "iostream" #include "algorithm" #include "vector" using namespace std; int main() { int n; while (cin >> n) { if (n == 0) break; int num; vector<int> s; for (int i = 0; i < n; i++) { cin >> num; s.push_back(num); } sort(s.begin(), s.end()); int sum = 0; for (int i = 0; i <= n / 2; i++) { sum = sum + s[i] / 2 + 1; } cout << sum << endl; } return 0; }
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