#ifndef LOCAL #define FAST_IO #endif #define INT128 // ============ #include #define OVERRIDE(a, b, c, d, ...) d #define REP2(i, n) for (i32 i = 0; i < (i32)(n); ++i) #define REP3(i, m, n) for (i32 i = (i32)(m); i < (i32)(n); ++i) #define REP(...) OVERRIDE(__VA_ARGS__, REP3, REP2)(__VA_ARGS__) #define PER2(i, n) for (i32 i = (i32)(n)-1; i >= 0; --i) #define PER3(i, m, n) for (i32 i = (i32)(n)-1; i >= (i32)(m); --i) #define PER(...) OVERRIDE(__VA_ARGS__, PER3, PER2)(__VA_ARGS__) #define ALL(x) begin(x), end(x) #define LEN(x) (i32)(x.size()) using namespace std; using u32 = unsigned int; using u64 = unsigned long long; using i32 = signed int; using i64 = signed long long; using f64 = double; using f80 = long double; using pi = pair; using pl = pair; template using V = vector; template using VV = V>; template using VVV = V>>; template using VVVV = V>>>; template using PQR = priority_queue, greater>; template bool chmin(T &x, const T &y) { if (x > y) { x = y; return true; } return false; } template bool chmax(T &x, const T &y) { if (x < y) { x = y; return true; } return false; } template i32 lob(const V &arr, const T &v) { return (i32)(lower_bound(ALL(arr), v) - arr.begin()); } template i32 upb(const V &arr, const T &v) { return (i32)(upper_bound(ALL(arr), v) - arr.begin()); } template V argsort(const V &arr) { V ret(arr.size()); iota(ALL(ret), 0); sort(ALL(ret), [&](i32 i, i32 j) -> bool { if (arr[i] == arr[j]) { return i < j; } else { return arr[i] < arr[j]; } }); return ret; } #ifdef INT128 using u128 = __uint128_t; using i128 = __int128_t; #endif [[maybe_unused]] constexpr i32 INF = 1000000100; [[maybe_unused]] constexpr i64 INF64 = 3000000000000000100; struct SetUpIO { SetUpIO() { #ifdef FAST_IO ios::sync_with_stdio(false); cin.tie(nullptr); #endif cout << fixed << setprecision(15); } } set_up_io; void scan(char &x) { cin >> x; } void scan(u32 &x) { cin >> x; } void scan(u64 &x) { cin >> x; } void scan(i32 &x) { cin >> x; } void scan(i64 &x) { cin >> x; } void scan(f64 &x) { cin >> x; } void scan(string &x) { cin >> x; } template void scan(V &x) { for (T &ele : x) { scan(ele); } } void read() {} template void read(Head &head, Tail &...tail) { scan(head); read(tail...); } #define CHAR(...) \ char __VA_ARGS__; \ read(__VA_ARGS__); #define U32(...) \ u32 __VA_ARGS__; \ read(__VA_ARGS__); #define U64(...) \ u64 __VA_ARGS__; \ read(__VA_ARGS__); #define I32(...) \ i32 __VA_ARGS__; \ read(__VA_ARGS__); #define I64(...) \ i64 __VA_ARGS__; \ read(__VA_ARGS__); #define F64(...) \ f64 __VA_ARGS__; \ read(__VA_ARGS__); #define STR(...) \ string __VA_ARGS__; \ read(__VA_ARGS__); #define VEC(type, name, size) \ V name(size); \ read(name); #define VVEC(type, name, size1, size2) \ VV name(size1, V(size2)); \ read(name); // ============ #ifdef DEBUGF #else #define DBG(...) (void)0 #endif // ============ #include // ============ #include #include // ============ #include #include #include // ============ #include constexpr bool is_prime(unsigned n) { if (n == 0 || n == 1) { return false; } for (unsigned i = 2; i * i <= n; ++i) { if (n % i == 0) { return false; } } return true; } constexpr unsigned mod_pow(unsigned x, unsigned y, unsigned mod) { unsigned ret = 1, self = x; while (y != 0) { if (y & 1) { ret = (unsigned)((unsigned long long)ret * self % mod); } self = (unsigned)((unsigned long long)self * self % mod); y /= 2; } return ret; } template constexpr unsigned primitive_root() { static_assert(is_prime(mod), "`mod` must be a prime number."); if (mod == 2) { return 1; } unsigned primes[32] = {}; int it = 0; { unsigned m = mod - 1; for (unsigned i = 2; i * i <= m; ++i) { if (m % i == 0) { primes[it++] = i; while (m % i == 0) { m /= i; } } } if (m != 1) { primes[it++] = m; } } for (unsigned i = 2; i < mod; ++i) { bool ok = true; for (int j = 0; j < it; ++j) { if (mod_pow(i, (mod - 1) / primes[j], mod) == 1) { ok = false; break; } } if (ok) return i; } return 0; } // y >= 1 template constexpr T safe_mod(T x, T y) { x %= y; if (x < 0) { x += y; } return x; } // y != 0 template constexpr T floor_div(T x, T y) { if (y < 0) { x *= -1; y *= -1; } if (x >= 0) { return x / y; } else { return -((-x + y - 1) / y); } } // y != 0 template constexpr T ceil_div(T x, T y) { if (y < 0) { x *= -1; y *= -1; } if (x >= 0) { return (x + y - 1) / y; } else { return -(-x / y); } } // b >= 1 // returns (g, x) s.t. g = gcd(a, b), a * x = g (mod b), 0 <= x < b / g // from ACL template std::pair extgcd(T a, T b) { a = safe_mod(a, b); T s = b, t = a, m0 = 0, m1 = 1; while (t) { T u = s / t; s -= t * u; m0 -= m1 * u; std::swap(s, t); std::swap(m0, m1); } if (m0 < 0) { m0 += b / s; } return std::pair(s, m0); } // b >= 1 // returns (g, x, y) s.t. g = gcd(a, b), a * x + b * y = g, 0 <= x < b / g, |y| < max(2, |a| / g) template std::tuple extgcd2(T a, T b) { T _a = safe_mod(a, b); T quot = (a - _a) / b; T x00 = 0, x01 = 1, y0 = b; T x10 = 1, x11 = -quot, y1 = _a; while (y1) { T u = y0 / y1; x00 -= u * x10; x01 -= u * x11; y0 -= u * y1; std::swap(x00, x10); std::swap(x01, x11); std::swap(y0, y1); } if (x00 < 0) { x00 += b / y0; x01 -= a / y0; } return std::tuple(y0, x00, x01); } // gcd(x, m) == 1 template T inv_mod(T x, T m) { return extgcd(x, m).second; } // ============ template struct ModInt { static_assert(mod != 0, "`mod` must not be equal to 0."); static_assert(mod < (1u << 31), "`mod` must be less than (1u << 31) = 2147483648."); unsigned val; static constexpr unsigned get_mod() { return mod; } constexpr ModInt() : val(0) {} template > * = nullptr> constexpr ModInt(T x) : val((unsigned)((long long)x % (long long)mod + (x < 0 ? mod : 0))) {} template > * = nullptr> constexpr ModInt(T x) : val((unsigned)(x % mod)) {} static constexpr ModInt raw(unsigned x) { ModInt ret; ret.val = x; return ret; } constexpr unsigned get_val() const { return val; } constexpr ModInt operator+() const { return *this; } constexpr ModInt operator-() const { return ModInt(0u) - *this; } constexpr ModInt &operator+=(const ModInt &rhs) { val += rhs.val; if (val >= mod) val -= mod; return *this; } constexpr ModInt &operator-=(const ModInt &rhs) { val -= rhs.val; if (val >= mod) val += mod; return *this; } constexpr ModInt &operator*=(const ModInt &rhs) { val = (unsigned long long)val * rhs.val % mod; return *this; } constexpr ModInt &operator/=(const ModInt &rhs) { val = (unsigned long long)val * rhs.inv().val % mod; return *this; } friend constexpr ModInt operator+(const ModInt &lhs, const ModInt &rhs) { return ModInt(lhs) += rhs; } friend constexpr ModInt operator-(const ModInt &lhs, const ModInt &rhs) { return ModInt(lhs) -= rhs; } friend constexpr ModInt operator*(const ModInt &lhs, const ModInt &rhs) { return ModInt(lhs) *= rhs; } friend constexpr ModInt operator/(const ModInt &lhs, const ModInt &rhs) { return ModInt(lhs) /= rhs; } constexpr ModInt pow(unsigned long long x) const { ModInt ret = ModInt::raw(1); ModInt self = *this; while (x != 0) { if (x & 1) ret *= self; self *= self; x >>= 1; } return ret; } constexpr ModInt inv() const { static_assert(is_prime(mod), "`mod` must be a prime number."); assert(val != 0); return this->pow(mod - 2); } friend std::istream &operator>>(std::istream &is, ModInt &x) { long long val; is >> val; x.val = val % mod + (val < 0 ? mod : 0); return is; } friend std::ostream &operator<<(std::ostream &os, const ModInt &x) { os << x.val; return os; } friend bool operator==(const ModInt &lhs, const ModInt &rhs) { return lhs.val == rhs.val; } friend bool operator!=(const ModInt &lhs, const ModInt &rhs) { return lhs.val != rhs.val; } }; template void debug(ModInt x) { std::cerr << x.val; } // ============ constexpr int ctz_constexpr(unsigned n) { int x = 0; while (!(n & (1u << x))) { ++x; } return x; } template struct FFTRoot { static constexpr unsigned R = ctz_constexpr(MOD - 1); std::array, R + 1> root, iroot; std::array, R> rate2, irate2; std::array, R - 1> rate3, irate3; std::array, R + 1> inv2; constexpr FFTRoot() : root{}, iroot{}, rate2{}, irate2{}, rate3{}, irate3{}, inv2{} { unsigned pr = primitive_root(); root[R] = ModInt(pr).pow(MOD >> R); iroot[R] = root[R].inv(); for (int i = R - 1; i >= 0; --i) { root[i] = root[i + 1] * root[i + 1]; iroot[i] = iroot[i + 1] * iroot[i + 1]; } ModInt prod(1), iprod(1); for (int i = 0; i < (int)R - 1; ++i) { rate2[i] = prod * root[i + 2]; irate2[i] = iprod * iroot[i + 2]; prod *= iroot[i + 2]; iprod *= root[i + 2]; } prod = ModInt(1); iprod = ModInt(1); for (int i = 0; i < (int)R - 2; ++i) { rate3[i] = prod * root[i + 3]; irate3[i] = iprod * iroot[i + 3]; prod *= iroot[i + 3]; iprod *= root[i + 3]; } ModInt i2 = ModInt(2).inv(); inv2[0] = ModInt(1); for (int i = 0; i < (int)R; ++i) { inv2[i + 1] = inv2[i] * i2; } } }; template void fft(M *a, int n) { using ull = unsigned long long; static_assert(M::get_mod() < (1u << 30)); static constexpr FFTRoot fftroot; static constexpr ull CEIL = 2ULL * M::get_mod() * M::get_mod(); int l = __builtin_ctz(n); int ph = 0; while (ph < l) { if (ph + 1 == l) { int b = 1 << ph; M z = M::raw(1); for (int i = 0; i < b; ++i) { int offset = i << 1; M x = a[offset]; M y = a[offset + 1] * z; a[offset] = x + y; a[offset + 1] = x - y; z *= fftroot.rate2[__builtin_ctz(~i)]; } ++ph; } else { int bl = 1 << ph; int wd = 1 << (l - 2 - ph); M zeta = M::raw(1); for (int i = 0; i < bl; ++i) { int offset = i << (l - ph); M zeta2 = zeta * zeta; M zeta3 = zeta2 * zeta; for (int j = 0; j < wd; ++j) { ull w = a[offset + j].val; ull x = (ull)a[offset + j + wd].val * zeta.val; ull y = (ull)a[offset + j + 2 * wd].val * zeta2.val; ull z = (ull)a[offset + j + 3 * wd].val * zeta3.val; ull ix_m_iz = (CEIL + x - z) % M::get_mod() * fftroot.root[2].val; a[offset + j] = M(w + x + y + z); a[offset + j + wd] = M(CEIL + w - x + y - z); a[offset + j + 2 * wd] = M(CEIL + w - y + ix_m_iz); a[offset + j + 3 * wd] = M(CEIL + w - y - ix_m_iz); } zeta *= fftroot.rate3[__builtin_ctz(~i)]; } ph += 2; } } } template void ifft(M *a, int n) { using ull = unsigned long long; static_assert(M::get_mod() < (1u << 30)); static constexpr FFTRoot fftroot; int l = __builtin_ctz(n); int ph = l; while (ph > 0) { if (ph == 1) { --ph; int wd = 1 << (l - 1); for (int i = 0; i < wd; ++i) { M x = a[i]; M y = a[i + wd]; a[i] = x + y; a[i + wd] = x - y; } } else { ph -= 2; int bl = 1 << ph; int wd = 1 << (l - 2 - ph); M zeta = M::raw(1); for (int i = 0; i < bl; ++i) { int offset = i << (l - ph); M zeta2 = zeta * zeta; M zeta3 = zeta2 * zeta; for (int j = 0; j < wd; ++j) { unsigned w = a[offset + j].val; unsigned x = a[offset + j + wd].val; unsigned y = a[offset + j + 2 * wd].val; unsigned z = a[offset + j + 3 * wd].val; unsigned iy_m_iz = (ull)(M::get_mod() + y - z) * fftroot.root[2].val % M::get_mod(); a[offset + j] = M(w + x + y + z); a[offset + j + wd] = M((ull)zeta.val * (2 * M::get_mod() + w - x - iy_m_iz)); a[offset + j + 2 * wd] = M((ull)zeta2.val * (2 * M::get_mod() + w + x - y - z)); a[offset + j + 3 * wd] = M((ull)zeta3.val * (M::get_mod() + w - x + iy_m_iz)); } zeta *= fftroot.irate3[__builtin_ctz(~i)]; } } } for (int i = 0; i < n; ++i) { a[i] *= fftroot.inv2[l]; } } template void fft(std::vector &a) { fft(a.data(), (int)a.size()); } template void ifft(std::vector &a) { ifft(a.data(), (int)a.size()); } template std::vector convolve_naive(const std::vector &a, const std::vector &b) { int n = (int)a.size(); int m = (int)b.size(); std::vector c(n + m - 1); if (n < m) { for (int j = 0; j < m; ++j) { for (int i = 0; i < n; ++i) { c[i + j] += a[i] * b[j]; } } } else { for (int i = 0; i < n; ++i) { for (int j = 0; j < m; ++j) { c[i + j] += a[i] * b[j]; } } } return c; } template std::vector convolve_fft(std::vector a, std::vector b) { int n = (int)a.size() + (int)b.size() - 1; int m = 1; while (m < n) { m <<= 1; } bool shr = false; M last; if (n >= 3 && n == m / 2 + 1) { shr = true; last = a.back() * b.back(); m /= 2; while ((int)a.size() > m) { a[(int)a.size() - 1 - m] += a.back(); a.pop_back(); } while ((int)b.size() > m) { b[(int)b.size() - 1 - m] += b.back(); b.pop_back(); } } a.resize(m); b.resize(m); fft(a); fft(b); for (int i = 0; i < m; ++i) { a[i] *= b[i]; } ifft(a); a.resize(n); if (shr) { a[0] -= last; a[n - 1] = last; } return a; } template std::vector convolve(const std::vector &a, const std::vector &b) { if (a.empty() || b.empty()) { return std::vector(0); } if (std::min(a.size(), b.size()) <= 60) { return convolve_naive(a, b); } else { return convolve_fft(a, b); } } template std::vector convolve_square_fft(std::vector a) { int n = (int)2 * a.size() - 1; int m = 1; while (m < n) { m <<= 1; } bool shr = false; M last; if (n >= 3 && n == m / 2 + 1) { shr = true; last = a.back() * a.back(); m /= 2; while ((int)a.size() > m) { a[(int)a.size() - 1 - m] += a.back(); a.pop_back(); } } a.resize(m); fft(a); for (int i = 0; i < m; ++i) { a[i] *= a[i]; } ifft(a); a.resize(n); if (shr) { a[0] -= last; a[n - 1] = last; } return a; } template std::vector convolve_square(const std::vector &a) { if (a.empty()) { return std::vector(0); } if ((int)a.size() <= 60) { return convolve_naive(a, a); } else { return convolve_square_fft(a); } } // ============ // 10 FFT(n) template std::vector fps_inv(const std::vector &f, int len = -1) { if (len == -1) { len = (int)f.size(); } assert(!f.empty() && f[0] != T(0) && len >= 0); std::vector g(1, T(1) / f[0]); while ((int)g.size() < len) { int n = (int)g.size(); std::vector fft_f(2 * n), fft_g(2 * n); std::copy(f.begin(), f.begin() + std::min(2 * n, (int)f.size()), fft_f.begin()); std::copy(g.begin(), g.end(), fft_g.begin()); fft(fft_f); fft(fft_g); for (int i = 0; i < 2 * n; ++i) { fft_f[i] *= fft_g[i]; } ifft(fft_f); std::fill(fft_f.begin(), fft_f.begin() + n, T(0)); fft(fft_f); for (int i = 0; i < 2 * n; ++i) { fft_f[i] *= fft_g[i]; } ifft(fft_f); g.resize(2 * n); for (int i = n; i < 2 * n; ++i) { g[i] = -fft_f[i]; } } g.resize(len); return g; } // ============ i32 ceil_log2(i32 n) { i32 k = 0; while ((1 << k) < n) { ++k; } return k; } using M = ModInt<998244353>; // sum_i a[i] / (1 - b[i] x) pair, V> sum_inv(const V &a, const V &b) { static constexpr FFTRoot root{}; assert(LEN(a) == LEN(b)); const i32 old = LEN(a); const i32 lg = ceil_log2(LEN(a)); const i32 n = 1 << lg; const i32 n2 = n * 2; V c(n2), d(n2); REP(i, old) { c[2 * i] = c[2 * i + 1] = a[i]; d[2 * i] = M(1) - b[i]; d[2 * i + 1] = M(1) + b[i]; } fill(begin(d) + 2 * old, end(d), M(1)); REP(ph, lg) { const i32 w = 1 << (ph + 1), w2 = w * 2; M omega = root.root[ph + 2]; // (n / w) FFT(w) for (i32 i = 0; i < n2; i += w2) { const i32 ti = i + w; REP(j, w) { c[ti + j] = c[i + j] = c[i + j] * d[ti + j] + c[ti + j] * d[i + j]; d[ti + j] = d[i + j] *= d[ti + j]; } ifft(c.data() + ti, w); ifft(d.data() + ti, w); d[ti] = M(2) - d[ti]; M pw(1); REP(j, w) { c[ti + j] *= pw; d[ti + j] *= pw; pw *= omega; } fft(c.data() + ti, w); fft(d.data() + ti, w); } } ifft(c); ifft(d); c.resize(old); d.resize(old + 1); return make_pair(c, d); } void solve() { I32(n, m); V b(n); REP(i, n) { read(b[i].val); } V a(n, M(1)); auto [num, den] = sum_inv(a, b); V ans = convolve(num, fps_inv(den, m + 1)); REP(i, 1, m + 1) { cout << ans[i] << '\n'; } } int main() { i32 t = 1; // cin >> t; while (t--) { solve(); } }