/* #region Head */ // #define _GLIBCXX_DEBUG #include using namespace std; using ll = long long; using ull = unsigned long long; using ld = long double; using pll = pair; template using vc = vector; template using vvc = vc>; using vll = vc; using vvll = vvc; using vld = vc; using vvld = vvc; using vs = vc; using vvs = vvc; template using um = unordered_map; template using pq = priority_queue; template using pqa = priority_queue, greater>; template using us = unordered_set; #define REP(i, m, n) for (ll i = (m), i##_len = (ll)(n); i < i##_len; ++(i)) #define REPM(i, m, n) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; ++(i)) #define REPR(i, m, n) for (ll i = (m), i##_min = (ll)(n); i >= i##_min; --(i)) #define REPD(i, m, n, d) for (ll i = (m), i##_len = (ll)(n); i < i##_len; i += (d)) #define REPMD(i, m, n, d) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; i += (d)) #define REPI(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++) #define ALL(x) begin(x), end(x) #define SIZE(x) ((ll)(x).size()) #define PERM(c) \ sort(ALL(c)); \ for (bool c##p = 1; c##p; c##p = next_permutation(ALL(c))) #define UNIQ(v) v.erase(unique(ALL(v)), v.end()); #define endl '\n' #define sqrt sqrtl #define floor floorl #define log2 log2l constexpr ll INF = 1'010'000'000'000'000'017LL; constexpr ll MOD = 1'000'000'007LL; // 1e9 + 7 constexpr ld EPS = 1e-12; constexpr ld PI = 3.14159265358979323846; template istream &operator>>(istream &is, vc &vec) { // vector 入力 for (T &x : vec) is >> x; return is; } template ostream &operator<<(ostream &os, vc &vec) { // vector 出力 (for dump) os << "{"; REP(i, 0, SIZE(vec)) os << vec[i] << (i == i_len - 1 ? "" : ", "); os << "}"; return os; } template ostream &operator>>(ostream &os, vc &vec) { // vector 出力 (inline) REP(i, 0, SIZE(vec)) os << vec[i] << (i == i_len - 1 ? "\n" : " "); return os; } template istream &operator>>(istream &is, pair &pair_var) { // pair 入力 is >> pair_var.first >> pair_var.second; return is; } template ostream &operator<<(ostream &os, pair &pair_var) { // pair 出力 os << "(" << pair_var.first << ", " << pair_var.second << ")"; return os; } // map, um, set, us 出力 template ostream &out_iter(ostream &os, T &map_var) { os << "{"; REPI(itr, map_var) { os << *itr; auto itrcp = itr; if (++itrcp != map_var.end()) os << ", "; } return os << "}"; } template ostream &operator<<(ostream &os, map &map_var) { return out_iter(os, map_var); } template ostream &operator<<(ostream &os, um &map_var) { os << "{"; REPI(itr, map_var) { auto [key, value] = *itr; os << "(" << key << ", " << value << ")"; auto itrcp = itr; if (++itrcp != map_var.end()) os << ", "; } os << "}"; return os; } template ostream &operator<<(ostream &os, set &set_var) { return out_iter(os, set_var); } template ostream &operator<<(ostream &os, us &set_var) { return out_iter(os, set_var); } template ostream &operator<<(ostream &os, pq &pq_var) { pq pq_cp(pq_var); os << "{"; if (!pq_cp.empty()) { os << pq_cp.top(), pq_cp.pop(); while (!pq_cp.empty()) os << ", " << pq_cp.top(), pq_cp.pop(); } return os << "}"; } // dump #define DUMPOUT cerr void dump_func() { DUMPOUT << endl; } template void dump_func(Head &&head, Tail &&... tail) { DUMPOUT << head; if (sizeof...(Tail) > 0) DUMPOUT << ", "; dump_func(move(tail)...); } // chmax (更新「される」かもしれない値が前) template > bool chmax(T &xmax, const U &x, Comp comp = {}) { if (comp(xmax, x)) { xmax = x; return true; } return false; } // chmin (更新「される」かもしれない値が前) template > bool chmin(T &xmin, const U &x, Comp comp = {}) { if (comp(x, xmin)) { xmin = x; return true; } return false; } // ローカル用 #define DEBUG_ #ifdef DEBUG_ #define DEB #define dump(...) \ DUMPOUT << " " << string(#__VA_ARGS__) << ": " \ << "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" << endl \ << " ", \ dump_func(__VA_ARGS__) #else #define DEB if (false) #define dump(...) #endif struct AtCoderInitialize { static constexpr int IOS_PREC = 15; static constexpr bool AUTOFLUSH = false; AtCoderInitialize() { ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr); cout << fixed << setprecision(IOS_PREC); if (AUTOFLUSH) cout << unitbuf; } } ATCODER_INITIALIZE; void Yn(bool p) { cout << (p ? "Yes" : "No") << endl; } void YN(bool p) { cout << (p ? "YES" : "NO") << endl; } /* #endregion */ /* #region ConvWithMint */ #define rep(i, b) REP(i, 0, b) #define si(x) int(x.size()) // size of input must be a power of 2 // output of forward fmt is bit-reversed // output elements are in the range [0,mod*4) // input of inverse fmt should be bit-reversed template void inplace_fmt(vector &f, bool inv) { const int n = si(f); static const int L = 30; static mint g[L], ig[L], p2[L]; if (g[0].v == 0) { rep(i, L) { mint w = -mint::root().pow(((mint::mod - 1) >> (i + 2)) * 3); g[i] = w; ig[i] = w.inv(); p2[i] = mint(1 << i).inv(); } } static constexpr uint mod2 = mint::mod * 2; if (!inv) { int b = n; if (b >>= 1) { // input:[0,mod) rep(i, b) { uint x = f[i + b].v; f[i + b].v = f[i].v + mint::mod - x; f[i].v += x; } } if (b >>= 1) { // input:[0,mod*2) mint p = 1; for (int i = 0, k = 0; i < n; i += b * 2) { REP(j, i, i + b) { uint x = (f[j + b] * p).v; // f[j].v=(f[j].v>= 1) { // input:[0,mod*3) mint p = 1; for (int i = 0, k = 0; i < n; i += b * 2) { REP(j, i, i + b) { uint x = (f[j + b] * p).v; // f[j].v=(f[j].v>= 1) { // input:[0,mod*4) mint p = 1; for (int i = 0, k = 0; i < n; i += b * 2) { REP(j, i, i + b) { uint x = (f[j + b] * p).v; f[j].v = (f[j].v < mod2 ? f[j].v : f[j].v - mod2); f[j + b].v = f[j].v + mint::mod - x; f[j].v += x; } p *= g[__builtin_ctz(++k)]; } } } } else { int b = 1; if (b < n / 2) { // input:[0,mod) mint p = 1; for (int i = 0, k = 0; i < n; i += b * 2) { REP(j, i, i + b) { ull x = f[j].v + mint::mod - f[j + b].v; f[j].v += f[j + b].v; f[j + b].v = x * p.v % mint::mod; } p *= ig[__builtin_ctz(++k)]; } b <<= 1; } for (; b < n / 2; b <<= 1) { mint p = 1; for (int i = 0, k = 0; i < n; i += b * 2) { REP(j, i, i + b / 2) { // input:[0,mod*2) ull x = f[j].v + mod2 - f[j + b].v; f[j].v += f[j + b].v; f[j].v = (f[j].v) < mod2 ? f[j].v : f[j].v - mod2; f[j + b].v = x * p.v % mint::mod; } REP(j, i + b / 2, i + b) { // input:[0,mod) ull x = f[j].v + mint::mod - f[j + b].v; f[j].v += f[j + b].v; // f[j].v=(f[j].v) struct modular { static constexpr uint const &mod = ref.mod; static modular root() { return modular(ref.root); } uint v; // modular(initializer_listls):v(*ls.bg){} modular(ll vv = 0) { s(vv % mod + mod); } modular &s(uint vv) { v = vv < mod ? vv : vv - mod; return *this; } modular operator-() const { return modular() - *this; } modular &operator+=(const modular &rhs) { return s(v + rhs.v); } modular &operator-=(const modular &rhs) { return s(v + mod - rhs.v); } modular &operator*=(const modular &rhs) { v = ull(v) * rhs.v % mod; return *this; } modular &operator/=(const modular &rhs) { return *this *= rhs.inv(); } modular operator+(const modular &rhs) const { return modular(*this) += rhs; } modular operator-(const modular &rhs) const { return modular(*this) -= rhs; } modular operator*(const modular &rhs) const { return modular(*this) *= rhs; } modular operator/(const modular &rhs) const { return modular(*this) /= rhs; } modular pow(int n) const { modular res(1), x(*this); while (n) { if (n & 1) res *= x; x *= x; n >>= 1; } return res; } modular inv() const { return pow(mod - 2); } /*modular inv()const{ int x,y; int g=extgcd(v,mod,x,y); assert(g==1); if(x<0)x+=mod; return modular(x); }*/ friend modular operator+(int x, const modular &y) { return modular(x) + y; } friend modular operator-(int x, const modular &y) { return modular(x) - y; } friend modular operator*(int x, const modular &y) { return modular(x) * y; } friend modular operator/(int x, const modular &y) { return modular(x) / y; } friend ostream &operator<<(ostream &os, const modular &m) { return os << m.v; } friend istream &operator>>(istream &is, modular &m) { ll x; is >> x; m = modular(x); return is; } bool operator<(const modular &r) const { return v < r.v; } bool operator==(const modular &r) const { return v == r.v; } bool operator!=(const modular &r) const { return v != r.v; } explicit operator bool() const { return v; } }; // 59501818244292734739283969=5.95*10^25 までの値を正しく計算 //最終的な列の大きさが 2^24 までなら動く //最終的な列の大きさが 2^20 以下のときは,下の 3 つの素数を使ったほうが速い(は?) // VERIFY: yosupo namespace arbitrary_convolution { constexpr modinfo base0{167772161, 3}; // 2^25 * 5 + 1 constexpr modinfo base1{469762049, 3}; // 2^26 * 7 + 1 constexpr modinfo base2{754974721, 11}; // 2^24 * 45 + 1 // constexpr modinfo base0{1045430273,3};//2^20 * 997 + 1 // constexpr modinfo base1{1051721729,6};//2^20 * 1003 + 1 // constexpr modinfo base2{1053818881,7};//2^20 * 1005 + 1 using mint0 = modular; using mint1 = modular; using mint2 = modular; template vc sub(const vc &x, const vc &y, bool same = false) { int n = si(x) + si(y) - 1; int s = 1; while (s < n) s *= 2; vc z(s); rep(i, si(x)) z[i] = x[i].v; inplace_fmt(z, false); if (!same) { vc w(s); rep(i, si(y)) w[i] = y[i].v; inplace_fmt(w, false); rep(i, s) z[i] *= w[i]; } else { rep(i, s) z[i] *= z[i]; } inplace_fmt(z, true); z.resize(n); return z; } template vc multiply(const vc &x, const vc &y, bool same = false) { auto d0 = sub(x, y, same); auto d1 = sub(x, y, same); auto d2 = sub(x, y, same); int n = si(d0); vc res(n); static const mint1 r01 = mint1(mint0::mod).inv(); static const mint2 r02 = mint2(mint0::mod).inv(); static const mint2 r12 = mint2(mint1::mod).inv(); static const mint2 r02r12 = r02 * r12; static const mint w1 = mint(mint0::mod); static const mint w2 = w1 * mint(mint1::mod); rep(i, n) { ull a = d0[i].v; ull b = (d1[i].v + mint1::mod - a) * r01.v % mint1::mod; ull c = ((d2[i].v + mint2::mod - a) * r02r12.v + (mint2::mod - b) * r12.v) % mint2::mod; res[i].v = (a + b * w1.v + c * w2.v) % mint::mod; } return res; } } // namespace arbitrary_convolution using arbitrary_convolution::multiply; template vector add_to_vector(vector &z, T v) { z.push_back(v); return z; } template vector add_to_vector(vector &z, T v, Args... args) { z.push_back(v); add_to_vector(z, args...); return z; } template vector make_vector(T v) { vector z; z.push_back(v); return z; } template vector make_vector(T v, Args... args) { vector z; z.push_back(v); add_to_vector(z, args...); return z; } constexpr modinfo base{998244353, 0}; using mint = modular; /* #endregion */ /* #region SegTree */ template // T: 要素 struct SegmentTree { using F = function; // 要素と要素をマージする関数.max とか. ll n; // 木のノード数 F f; // 区間クエリで使う演算,結合法則を満たす演算.区間最大値のクエリを投げたいなら max 演算. T ti; // 値配列の初期値.演算 f に関する単位元.区間最大値なら単位元は 0. (a>0 なら max(a,0)=max(0,a)=a) vc dat; // 1-indexed 値配列 (index は木の根から順に 1 | 2 3 | 4 5 6 7 | 8 9 10 11 12 13 14 15 | ...) // コンストラクタ. SegmentTree() {} // コンストラクタ. SegmentTree(F f, T ti) : f(f), ti(ti) {} // 指定要素数のセグメント木を初期化する void init(ll n_) { n = 1; while (n < n_) n <<= 1; dat.assign(n << 1, ti); } // ベクトルからセグメント木を構築する void build(const vc &v) { ll n_ = v.size(); init(n_); REP(i, 0, n_) dat[n + i] = v[i]; REPR(i, n - 1, 1) dat[i] = f(dat[(i << 1) | 0], dat[(i << 1) | 1]); } // インデックス k の要素の値を x にする. void set_val(ll k, T x) { dat[k += n] = x; while (k >>= 1) dat[k] = f(dat[(k << 1) | 0], dat[(k << 1) | 1]); // 上へ登って更新していく } // インデックス k の要素の値を取得する. T get_val(ll k) { return dat[k + n]; } // 半開区間 [a, b) に対するクエリを実行する T query(ll a, ll b) { if (a >= b) return ti; // assert(a>= 1, r >>= 1) { if (l & 1) vl = f(vl, dat[l++]); if (r & 1) vr = f(dat[--r], vr); } return f(vl, vr); } // セグメント木上の二分探索 template int find(ll st, C &check, T &acc, ll k, ll l, ll r) { if (l + 1 == r) { acc = f(acc, dat[k]); return check(acc) ? k - n : -1; } ll m = (l + r) >> 1; if (m <= st) return find(st, check, acc, (k << 1) | 1, m, r); if (st <= l && !check(f(acc, dat[k]))) { acc = f(acc, dat[k]); return -1; } ll vl = find(st, check, acc, (k << 1) | 0, l, m); if (~vl) return vl; return find(st, check, acc, (k << 1) | 1, m, r); } // セグメント木上の二分探索.check(query(st, idx)) が真となる idx を返す. template int find(ll st, C &check) { T acc = ti; return find(st, check, acc, 1, 0, n); } }; /* #endregion */ // Problem void solve() { ll n, q; cin >> n >> q; vll a(n), b(q); cin >> a >> b; using vm = vc; auto f = [](vm a, vm b) -> vm { return arbitrary_convolution::multiply(a, b); }; SegmentTree seg(f, vm({1})); vc data(n); REP(i, 0, n) data[i] = {a[i] - 1, 1}; seg.build(data); vm ls = seg.query(0, n); REP(i, 0, q) cout << ls[b[i]] << endl; } // entry point int main() { solve(); return 0; }