9237 이장님 초대 문제풀이 #include #include #include using namespace std; void fast_io(void) { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); } vector v; int main(void) { fast_io(); int n,res=0; cin >> n; for (int i = 0; i > num; v.push_back(num+2); } sort(v.rbegin(), v.rend()); for (auto i = 0;i