11650 좌표 정렬하기 #include using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n; vector n_arr; cin >> n; for (int i = 0; i > x >> y; n_arr.push_back({x, y}); } sort(n_arr.begin(), n_arr.end()); for (auto i : n_arr) { cout