기로에 서다

문제 www.acmicpc.net/problem/19588 b.first; } int main() { cin.tie(NULL); cout.tie(NULL); ios_base::sync_with_stdio(false); cin >> n >> m; v.resize(n + 1), pxor.resize(n + 1), pxor2.resize(n + 1); for (int i = 1; i > x >> y; v[i] = { x, y }; } auto it = v.begin(); sort(it + 1, v.end(), cmp); for (int i = 1; i > q; while (q--) { cin >> a >> b; cout