/* Problem URL: https://codeforces.com/contest/369/problem/E */ #include using namespace std; #define V vector #define rmin(a, b) a = min(a, b) #define rmax(a, b) a = max(a, b) #define rep(i, lim) for (size_t i = 0; i < (lim); i++) #define nrep(i, s, lim) for (size_t i = s; i < (lim); i++) #define repv(i, v) for (auto &i : (v)) #define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; } #define sortv(v) sort(v.begin(), v.end()) #define all(v) (v).begin(), (v).end() using vi = vector; using vvi = vector; using vvvi = vector; using vvvvi = vector; using ll = long long; using vl = vector; using vvl = vector; using vvvl = vector; using vvvvl = vector; template auto operator<<(ostream &os, const vector &vec)->ostream& { os << vec[0]; for (size_t i = 1; i < vec.size(); i++) { os << ' ' << vec[i]; } os << '\n'; return os; } template auto operator>>(istream &is, vector &vec)->istream& { for (auto &i : vec) { is >> i; } return is; } template auto operator<<(ostream &os, const vector> &vec)->ostream& { for (auto &i : vec) { os << i[0]; for (size_t j = 1; j < i.size(); j++) { os << ' ' << i[j]; } os << '\n'; } return os; } template auto operator>>(istream &is, vector> &vec)->istream& { for (auto &i : vec) { for (auto &j : i) { is >> j; } } return is; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, q; cin >> n >> q; V> segs(n); for (auto &[l, r] : segs) { cin >> l >> r; } int inf = INT32_MAX >> 1; segs.emplace_back(0, 0); segs.emplace_back(inf - 1, inf - 1); n += 2; sortv(segs); while (__builtin_popcount(n) != 1) { n++; segs.emplace_back(inf - 1, inf - 1); } vvi seg(n * 2); function build = [&](int i, int l, int r) { if (l == r) { seg[i].push_back(segs[i - n].second); return; } int mid = (l + r) / 2; build(i * 2, l, mid); build(i * 2 + 1, mid + 1, r); merge(all(seg[i * 2]), all(seg[i * 2 + 1]), back_inserter(seg[i])); }; build(1, 0, n - 1); while (q--) { int cnt; cin >> cnt; vi points(cnt); cin >> points; points.push_back(0); points.push_back(inf); sortv(points); points.erase(unique(all(points)), points.end()); int count = 0; nrep(i, 1, points.size()) { auto find_l = [&](){ int low = 0; int high = n - 1; int ans = 0; while (low <= high) { int mid = (low + high) / 2; if (segs[mid].first > points[i - 1]) { ans = mid; high = mid - 1; continue; } low = mid + 1; } return ans; }; auto find_r = [&](){ int low = 0; int high = n - 1; int ans = 0; while (low <= high) { int mid = (low + high) / 2; if (segs[mid].first < points[i]) { ans = mid; low = mid + 1; continue; } high = mid - 1; } return ans; }; int tl = find_l(); int tr = find_r(); // cout << points[i - 1] << ' ' << points[i] << ' ' << tl << ' ' << tr << '\n'; if (tl > tr) { continue; } function search = [&](int nod, int l, int r) -> int { if (l > tr || r < tl) { return 0; } if (l >= tl && r <= tr) { auto itr = upper_bound(all(seg[nod]), points[i] - 1); return itr - upper_bound(all(seg[nod]), points[i - 1]); } int mid = (l + r) / 2; return search(nod * 2, l, mid) + search(nod * 2 + 1, mid + 1, r); }; count += search(1, 0, n - 1); } cout << n - count - 1 << '\n'; } }