結果
| 問題 |
No.1561 connect x connect
|
| ユーザー |
 ecottea
|
| 提出日時 | 2025-09-09 16:01:08 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 319 ms / 2,000 ms |
| コード長 | 59,903 bytes |
| コンパイル時間 | 5,848 ms |
| コンパイル使用メモリ | 291,596 KB |
| 実行使用メモリ | 6,272 KB |
| 最終ジャッジ日時 | 2025-09-09 16:01:18 |
| 合計ジャッジ時間 | 9,318 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 35 |
ソースコード
#ifndef HIDDEN_IN_VS // 折りたたみ用
// 警告の抑制
#define _CRT_SECURE_NO_WARNINGS
// ライブラリの読み込み
#include <bits/stdc++.h>
using namespace std;
// 型名の短縮
using ll = long long; using ull = unsigned long long; // -2^63 ～ 2^63 = 9e18（int は -2^31 ～ 2^31 = 2e9）
using pii = pair<int, int>; using pll = pair<ll, ll>; using pil = pair<int, ll>; using pli = pair<ll, int>;
using vi = vector<int>; using vvi = vector<vi>; using vvvi = vector<vvi>; using vvvvi = vector<vvvi>;
using vl = vector<ll>; using vvl = vector<vl>; using vvvl = vector<vvl>; using vvvvl = vector<vvvl>;
using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>;
using vc = vector<char>; using vvc = vector<vc>; using vvvc = vector<vvc>;
using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>;
template <class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>;
using Graph = vvi;
// 定数の定義
const double PI = acos(-1);
int DX[4] = { 1, 0, -1, 0 }; // 4 近傍（下，右，上，左）
int DY[4] = { 0, 1, 0, -1 };
int INF = 1001001001; ll INFL = 4004004003094073385LL; // (int)INFL = INF, (int)(-INFL) = -INF;
// 入出力高速化
struct fast_io { fast_io() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(18); } } fastIOtmp;
// 汎用マクロの定義
#define all(a) (a).begin(), (a).end()
#define sz(x) ((int)(x).size())
#define lbpos(a, x) (int)distance((a).begin(), std::lower_bound(all(a), (x)))
#define ubpos(a, x) (int)distance((a).begin(), std::upper_bound(all(a), (x)))
#define Yes(b) {cout << ((b) ? "Yes\n" : "No\n");}
#define rep(i, n) for(int i = 0, i##_len = int(n); i < i##_len; ++i) // 0 から n-1 まで昇順
#define repi(i, s, t) for(int i = int(s), i##_end = int(t); i <= i##_end; ++i) // s から t まで昇順
#define repir(i, s, t) for(int i = int(s), i##_end = int(t); i >= i##_end; --i) // s から t まで降順
#define repe(v, a) for(const auto& v : (a)) // a の全要素（変更不可能）
#define repea(v, a) for(auto& v : (a)) // a の全要素（変更可能）
#define repb(set, d) for(int set = 0, set##_ub = 1 << int(d); set < set##_ub; ++set) // d ビット全探索（昇順）
#define repis(i, set) for(int i = lsb(set), bset##i = set; i < 32; bset##i -= 1 << i, i = lsb(bset##i)) // set の全要素（昇順）
#define repp(a) sort(all(a)); for(bool a##_perm = true; a##_perm; a##_perm = next_permutation(all(a))) // a の順列全て（昇順）
#define uniq(a) {sort(all(a)); (a).erase(unique(all(a)), (a).end());} // 重複除去
#define EXIT(a) {cout << (a) << endl; exit(0);} // 強制終了
#define inQ(x, y, u, l, d, r) ((u) <= (x) && (l) <= (y) && (x) < (d) && (y) < (r)) // 半開矩形内判定
// 汎用関数の定義
template <class T> inline ll powi(T n, int k) { ll v = 1; rep(i, k) v *= n; return v; }
template <class T> inline bool chmax(T& M, const T& x) { if (M < x) { M = x; return true; } return false; } // 最大値を更新（更新されたら true を返す）
template <class T> inline bool chmin(T& m, const T& x) { if (m > x) { m = x; return true; } return false; } // 最小値を更新（更新されたら true を返す）
template <class T> inline int getb(T set, int i) { return (set >> i) & T(1); }
template <class T> inline T smod(T n, T m) { n %= m; if (n < 0) n += m; return n; } // 非負mod
// 演算子オーバーロード
template <class T, class U> inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }
template <class T> inline istream& operator>>(istream& is, vector<T>& v) { repea(x, v) is >> x; return is; }
template <class T> inline vector<T>& operator--(vector<T>& v) { repea(x, v) --x; return v; }
template <class T> inline vector<T>& operator++(vector<T>& v) { repea(x, v) ++x; return v; }
#endif // 折りたたみ用
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#ifdef _MSC_VER
#include "localACL.hpp"
#endif
//using mint = modint998244353;
using mint = static_modint<(int)1e9+7>;
//using mint = modint; // mint::set_mod(m);
using vm = vector<mint>; using vvm = vector<vm>; using vvvm = vector<vvm>; using vvvvm = vector<vvvm>; using pim = pair<int, mint>;
#endif
#ifdef _MSC_VER // 手元環境（Visual Studio）
#include "local.hpp"
#else // 提出用（gcc）
int mute_dump = 0;
int frac_print = 0;
#if __has_include(<atcoder/all>)
namespace atcoder {
inline istream& operator>>(istream& is, mint& x) { ll x_; is >> x_; x = x_; return is; }
inline ostream& operator<<(ostream& os, const mint& x) { os << x.val(); return os; }
}
#endif
inline int popcount(int n) { return __builtin_popcount(n); }
inline int popcount(ll n) { return __builtin_popcountll(n); }
inline int lsb(int n) { return n != 0 ? __builtin_ctz(n) : 32; }
inline int lsb(ll n) { return n != 0 ? __builtin_ctzll(n) : 64; }
inline int msb(int n) { return n != 0 ? (31 - __builtin_clz(n)) : -1; }
inline int msb(ll n) { return n != 0 ? (63 - __builtin_clzll(n)) : -1; }
#define dump(...)
#define dumpel(v)
#define dump_math(v)
#define input_from_file(f)
#define output_to_file(f)
#define Assert(b) { if (!(b)) { vc MLE(1<<30); EXIT(MLE.back()); } } // RE の代わりに MLE を出す
#endif
//【線形漸化式の発見】O(n^2)
/*
* 与えられた数列 a[0..n) に対し，以下の等式を満たす c[0..m) で m を最小とするものを返す：
* a[i] = Σj∈[0..m) c[j] a[i-1-j] (∀i∈[m..n))
*
* 制約 : mint::mod は大きい素数
*/
vm berlekamp_massey(const vm& a) {
// 参考 : https://en.wikipedia.org/wiki/Berlekamp%E2%80%93Massey_algorithm
// verify : https://judge.yosupo.jp/problem/find_linear_recurrence
vm S(a), C{ 1 }, B{ 1 };
int N = sz(a), m = 1; mint b = 1;
rep(n, N) {
mint d = 0;
rep(i, sz(C)) d += C[i] * S[n - i];
if (d == 0) {
m++;
}
else if (2 * (sz(C) - 1) <= n) {
vm T(C);
mint coef = d * b.inv();
C.resize(max(sz(C), sz(B) + m));
rep(j, sz(B)) C[j + m] -= coef * B[j];
B = T;
b = d;
m = 1;
}
else {
mint coef = d * b.inv();
C.resize(max(sz(C), sz(B) + m));
rep(j, sz(B)) C[j + m] -= coef * B[j];
m++;
}
}
C.erase(C.begin());
rep(i, sz(C)) C[i] *= -1;
return C;
}
//【畳込み（素朴）】O(n m)
/*
* a[0..n) と b[0..m) を畳み込んだ数列 c[0..n+m-1) を返す．
* すなわち c[k] = Σ_(i+j=k) a[i] b[j] である．
*/
template <class T>
vector<T> naive_convolution(const vector<T>& a, const vector<T>& b) {
// verify : https://atcoder.jp/contests/abc214/tasks/abc214_g
int n = sz(a), m = sz(b);
if (n == 0 || m == 0) return vector<T>();
// c[k] = Σ_(i+j=k) a[i] b[j]
vector<T> c(n + m - 1);
if (n < m) {
rep(i, n) rep(j, m) c[i + j] += a[i] * b[j];
}
else {
rep(j, m) rep(i, n) c[i + j] += a[i] * b[j];
}
return c;
}
//【形式的冪級数】
/*
* MFPS() : O(1)
* 零多項式 f = 0 で初期化する．
*
* MFPS(mint c0) : O(1)
* 定数多項式 f = c0 で初期化する．
*
* MFPS(mint c0, int n) : O(n)
* n 次未満の項をもつ定数多項式 f = c0 で初期化する．
*
* MFPS(vm c) : O(n)
* f(z) = c[0] + c[1] z + ... + c[n - 1] z^(n-1) で初期化する．
*
* set_conv(vm(*CONV)(const vm&, const vm&)) : O(1)
* 畳込み用の関数を CONV に設定する．
*
* c + f, f + c : O(1) f + g : O(n)
* f - c : O(1) c - f, f - g, -f : O(n)
* c * f, f * c : O(n) f * g : O(n log n) f * g_sp : O(n |g|)
* f / c : O(n) f / g : O(n log n) f / g_sp : O(n |g|)
* 形式的冪級数としての和，差，積，商の結果を返す．
* g_sp はスパース多項式であり，{次数, 係数} の次数昇順の組の vector で表す．
* 制約 : 商では g(0) != 0
*
* MFPS f.inv(int d) : O(n log n)
* 1 / f mod z^d を返す．
* 制約 : f(0) != 0
*
* MFPS f.quotient(MFPS g) : O(n log n)
* MFPS f.reminder(MFPS g) : O(n log n)
* pair<MFPS, MFPS> f.quotient_remainder(MFPS g) : O(n log n)
* 多項式としての f を g で割った商，余り，商と余りの組を返す．
* 制約 : g の最高次の係数は 0 でない
*
* int f.deg(), int f.size() : O(1)
* 多項式 f の次数[項数]を返す．
*
* MFPS::monomial(int d, mint c = 1) : O(d)
* 単項式 c z^d を返す．
*
* mint f.assign(mint c) : O(n)
* 多項式 f の不定元 z に c を代入した値を返す．
*
* f.resize(int d) : O(1)
* mod z^d をとる．
*
* f.resize() : O(n)
* 不要な高次の項を削る．
*
* f >> d, f << d : O(n)
* 係数列を d だけ右[左]シフトした多項式を返す．
* （右シフトは z^d の乗算，左シフトは z^d で割った商と等価）
*
* f.push_back(c) : O(1)
* 最高次の係数として c を追加する．
*/
struct MFPS {
using SMFPS = vector<pim>;
int n; // 係数の個数（次数 + 1）
vm c; // 係数列
inline static vm(*CONV)(const vm&, const vm&) = convolution; // 畳込み用の関数
// コンストラクタ（0，定数，係数列で初期化）
MFPS() : n(0) {}
MFPS(mint c0) : n(1), c({ c0 }) {}
MFPS(int c0) : n(1), c({ mint(c0) }) {}
MFPS(mint c0, int d) : n(d), c(n) { if (n > 0) c[0] = c0; }
MFPS(int c0, int d) : n(d), c(n) { if (n > 0) c[0] = c0; }
MFPS(const vm& c_) : n(sz(c_)), c(c_) {}
MFPS(const vi& c_) : n(sz(c_)), c(n) { rep(i, n) c[i] = c_[i]; }
// 代入
MFPS(const MFPS& f) = default;
MFPS& operator=(const MFPS& f) = default;
MFPS& operator=(const mint& c0) { n = 1; c = { c0 }; return *this; }
void push_back(mint cn) { c.emplace_back(cn); ++n; }
void pop_back() { c.pop_back(); --n; }
[[nodiscard]] mint back() { return c.back(); }
// 比較
[[nodiscard]] bool operator==(const MFPS& g) const { return c == g.c; }
[[nodiscard]] bool operator!=(const MFPS& g) const { return c != g.c; }
// アクセス
inline mint const& operator[](int i) const { return c[i]; }
inline mint& operator[](int i) { return c[i]; }
// 次数
[[nodiscard]] int deg() const { return n - 1; }
[[nodiscard]] int size() const { return n; }
static void set_conv(vm(*CONV_)(const vm&, const vm&)) {
// verify : https://atcoder.jp/contests/tdpc/tasks/tdpc_fibonacci
CONV = CONV_;
}
// 加算
MFPS& operator+=(const MFPS& g) {
if (n >= g.n) rep(i, g.n) c[i] += g.c[i];
else {
rep(i, n) c[i] += g.c[i];
repi(i, n, g.n - 1) c.push_back(g.c[i]);
n = g.n;
}
return *this;
}
[[nodiscard]] MFPS operator+(const MFPS& g) const { return MFPS(*this) += g; }
// 定数加算
MFPS& operator+=(const mint& sc) {
if (n == 0) { n = 1; c = { sc }; }
else { c[0] += sc; }
return *this;
}
[[nodiscard]] MFPS operator+(const mint& sc) const { return MFPS(*this) += sc; }
[[nodiscard]] friend MFPS operator+(const mint& sc, const MFPS& f) { return f + sc; }
MFPS& operator+=(const int& sc) { *this += mint(sc); return *this; }
[[nodiscard]] MFPS operator+(const int& sc) const { return MFPS(*this) += sc; }
[[nodiscard]] friend MFPS operator+(const int& sc, const MFPS& f) { return f + sc; }
// 減算
MFPS& operator-=(const MFPS& g) {
if (n >= g.n) rep(i, g.n) c[i] -= g.c[i];
else {
rep(i, n) c[i] -= g.c[i];
repi(i, n, g.n - 1) c.push_back(-g.c[i]);
n = g.n;
}
return *this;
}
[[nodiscard]] MFPS operator-(const MFPS& g) const { return MFPS(*this) -= g; }
// 定数減算
MFPS& operator-=(const mint& sc) { *this += -sc; return *this; }
[[nodiscard]] MFPS operator-(const mint& sc) const { return MFPS(*this) -= sc; }
[[nodiscard]] friend MFPS operator-(const mint& sc, const MFPS& f) { return -(f - sc); }
MFPS& operator-=(const int& sc) { *this += -sc; return *this; }
[[nodiscard]] MFPS operator-(const int& sc) const { return MFPS(*this) -= sc; }
[[nodiscard]] friend MFPS operator-(const int& sc, const MFPS& f) { return -(f - sc); }
// 加法逆元
[[nodiscard]] MFPS operator-() const { return MFPS(*this) *= -1; }
// 定数倍
MFPS& operator*=(const mint& sc) { rep(i, n) c[i] *= sc; return *this; }
[[nodiscard]] MFPS operator*(const mint& sc) const { return MFPS(*this) *= sc; }
[[nodiscard]] friend MFPS operator*(const mint& sc, const MFPS& f) { return f * sc; }
MFPS& operator*=(const int& sc) { *this *= mint(sc); return *this; }
[[nodiscard]] MFPS operator*(const int& sc) const { return MFPS(*this) *= sc; }
[[nodiscard]] friend MFPS operator*(const int& sc, const MFPS& f) { return f * sc; }
// 右からの定数除算
MFPS& operator/=(const mint& sc) { *this *= sc.inv(); return *this; }
[[nodiscard]] MFPS operator/(const mint& sc) const { return MFPS(*this) /= sc; }
MFPS& operator/=(const int& sc) { *this /= mint(sc); return *this; }
[[nodiscard]] MFPS operator/(const int& sc) const { return MFPS(*this) /= sc; }
// 積
MFPS& operator*=(const MFPS& g) { c = CONV(c, g.c); n = sz(c); return *this; }
[[nodiscard]] MFPS operator*(const MFPS& g) const { return MFPS(*this) *= g; }
// 除算
[[nodiscard]] MFPS inv(int d) const {
// 参考：https://nyaannyaan.github.io/library/fps/formal-power-series.hpp
// verify : https://judge.yosupo.jp/problem/inv_of_formal_power_series
//【方法】
// 1 / f mod z^d を求めることは，
// f g = 1 (mod z^d)
// なる g を求めることである．
// この d の部分を 1, 2, 4, ..., 2^i と倍々にして求めていく．
//
// d = 1 のときについては
// g = 1 / f[0] (mod z^1)
// である．
//
// 次に，
// g = h (mod z^k)
// が求まっているとして
// g mod z^(2 k)
// を求める．最初の式を変形していくことで
// g - h = 0 (mod z^k)
// ⇒ (g - h)^2 = 0 (mod z^(2 k))
// ⇔ g^2 - 2 g h + h^2 = 0 (mod z^(2 k))
// ⇒ f g^2 - 2 f g h + f h^2 = 0 (mod z^(2 k))
// ⇔ g - 2 h + f h^2 = 0 (mod z^(2 k)) (f g = 1 (mod z^d) より)
// ⇔ g = (2 - f h) h (mod z^(2 k))
// を得る．
//
// この手順を d ≦ 2^i となる i まで繰り返し，d 次以上の項を削除すればよい．
Assert(!c.empty());
Assert(c[0] != 0);
MFPS g(c[0].inv());
for (int k = 1; k < d; k <<= 1) {
int len = max(min(2 * k, d), 1);
MFPS tmp(0, len);
rep(i, min(len, n)) tmp[i] = -c[i]; // -f
tmp *= g; // -f h
tmp.resize(len);
tmp[0] += 2; // 2 - f h
g *= tmp; // (2 - f h) h
g.resize(len);
}
return g;
}
MFPS& operator/=(const MFPS& g) { return *this *= g.inv(max(n, g.n)); }
[[nodiscard]] MFPS operator/(const MFPS& g) const { return MFPS(*this) /= g; }
// 余り付き除算
[[nodiscard]] MFPS quotient(const MFPS& g) const {
// 参考 : https://nyaannyaan.github.io/library/fps/formal-power-series.hpp
// verify : https://judge.yosupo.jp/problem/division_of_polynomials
//【方法】
// f(x) = g(x) q(x) + r(x) となる q(x) を求める．
// f の次数は n-1, g の次数は m-1 とする．(n ≧ m)
// 従って q の次数は n-m，r の次数は m-2 となる．
//
// f^R で f の係数列を逆順にした多項式を表す．すなわち
// f^R(x) := f(1/x) x^(n-1)
// である．他の多項式も同様とする．
//
// 最初の式で x → 1/x と置き換えると，
// f(1/x) = g(1/x) q(1/x) + r(1/x)
// ⇔ f(1/x) x^(n-1) = g(1/x) q(1/x) x^(n-1) + r(1/x) x^(n-1)
// ⇔ f(1/x) x^(n-1) = g(1/x) x^(m-1) q(1/x) x^(n-m) + r(1/x) x^(m-2) x^(n-m+1)
// ⇔ f^R(x) = g^R(x) q^R(x) + r^R(x) x^(n-m+1)
// ⇒ f^R(x) = g^R(x) q^R(x) (mod x^(n-m+1))
// ⇒ q^R(x) = f^R(x) / g^R(x) (mod x^(n-m+1))
// を得る．
//
// これで q を mod x^(n-m+1) で正しく求めることができることになるが，
// q の次数は n-m であったから，q 自身を正しく求めることができた．
if (n < g.n) return MFPS();
return ((this->rev() / g.rev()).resize(n - g.n + 1)).rev();
}
[[nodiscard]] MFPS reminder(const MFPS& g) const {
// verify : https://judge.yosupo.jp/problem/division_of_polynomials
return (*this - this->quotient(g) * g).resize();
}
[[nodiscard]] pair<MFPS, MFPS> quotient_remainder(const MFPS& g) const {
// verify : https://judge.yosupo.jp/problem/division_of_polynomials
pair<MFPS, MFPS> res;
res.first = this->quotient(g);
res.second = (*this - res.first * g).resize();
return res;
}
// スパース積
MFPS& operator*=(const SMFPS& g) {
// g の定数項だけ例外処理
auto it0 = g.begin();
mint g0 = 0;
if (it0->first == 0) {
g0 = it0->second;
it0++;
}
// 後ろからインライン配る DP
repir(i, n - 1, 0) {
// 上位項に係数倍して配っていく．
for (auto it = it0; it != g.end(); it++) {
auto [j, gj] = *it;
if (i + j >= n) break;
c[i + j] += c[i] * gj;
}
// 定数項は最後に配るか消去しないといけない．
c[i] *= g0;
}
return *this;
}
[[nodiscard]] MFPS operator*(const SMFPS& g) const { return MFPS(*this) *= g; }
// スパース商
MFPS& operator/=(const SMFPS& g) {
// g の定数項だけ例外処理
auto it0 = g.begin();
Assert(it0->first == 0 && it0->second != 0);
mint g0_inv = it0->second.inv();
it0++;
// 前からインライン配る DP（後ろに累積効果あり）
rep(i, n) {
// 定数項は最初に配らないといけない．
c[i] *= g0_inv;
// 上位項に係数倍して配っていく．
for (auto it = it0; it != g.end(); it++) {
auto [j, gj] = *it;
if (i + j >= n) break;
c[i + j] -= c[i] * gj;
}
}
return *this;
}
[[nodiscard]] MFPS operator/(const SMFPS& g) const { return MFPS(*this) /= g; }
// 係数反転
[[nodiscard]] MFPS rev() const { MFPS h = *this; reverse(all(h.c)); return h; }
// 単項式
[[nodiscard]] static MFPS monomial(int d, mint coef = 1) {
MFPS mono(0, d + 1);
mono[d] = coef;
return mono;
}
// 不要な高次項の除去
MFPS& resize() {
// 最高次の係数が非 0 になるまで削る．
while (n > 0 && c[n - 1] == 0) {
c.pop_back();
n--;
}
return *this;
}
// x^d 以上の項を除去する．
MFPS& resize(int d) {
n = d;
c.resize(d);
return *this;
}
// 不定元への代入
[[nodiscard]] mint assign(const mint& x) const {
mint val = 0;
repir(i, n - 1, 0) val = val * x + c[i];
return val;
}
// 係数のシフト
MFPS& operator>>=(int d) {
n += d;
c.insert(c.begin(), d, 0);
return *this;
}
MFPS& operator<<=(int d) {
n -= d;
if (n <= 0) { c.clear(); n = 0; }
else c.erase(c.begin(), c.begin() + d);
return *this;
}
[[nodiscard]] MFPS operator>>(int d) const { return MFPS(*this) >>= d; }
[[nodiscard]] MFPS operator<<(int d) const { return MFPS(*this) <<= d; }
#ifdef _MSC_VER
friend ostream& operator<<(ostream& os, const MFPS& f) {
if (f.n == 0) os << 0;
else {
rep(i, f.n) {
os << f[i] << "z^" << i;
if (i < f.n - 1) os << " + ";
}
}
return os;
}
#endif
};
//【展開係数】O(n log n log N)
/*
* [z^N] f(z)/g(z) を返す．
*
* 制約 : deg f < deg g, g[0] ≠ 0
*/
mint bostan_mori(MFPS f, MFPS g, ll N) {
// 参考 : http://q.c.titech.ac.jp/docs/progs/polynomial_division.html
// verify : https://judge.yosupo.jp/problem/kth_term_of_linearly_recurrent_sequence
//【方法】
// 分母分子に g(-z) を掛けることにより
// f(z) / g(z) = f(z) g(-z) / g(z) g(-z)
// を得る．ここで g(z) g(-z) は偶多項式なので
// g(z) g(-z) = e(z^2)
// と表すことができる．
//
// 分子について
// f(z) g(-z) = E(z^2) + z O(z^2)
// というように偶多項式部分と奇多項式部分に分けると，N が偶数のときは
// [z^N] f(z) g(-z) / g(z) g(-z)
// = [z^N] E(z^2) / e(z^2)
// = [z^(N/2)] E(z) / e(z)
// となり，N が奇数のときは
// [z^N] f(z) g(-z) / g(z) g(-z)
// = [z^N] z O(z^2) / e(z^2)
// = [z^((N-1)/2)] O(z) / e(z)
// となる．
//
// これを繰り返せば N を半分ずつに減らしていくことができる．
Assert(g.n >= 1 && g[0] != 0);
// f(z) = 0 のときは 0 を返す．
if (f.n == 0) return 0;
while (N > 0) {
// f2(z) = f(z) g(-z), g2(z) = g(z) g(-z) を求める．
MFPS f2, g2 = g;
rep(i, g2.n) if (i & 1) g2[i] *= -1;
f2 = f * g2;
g2 *= g;
// f3(z) = E(z) or O(z), g3(z) = e(z) を求める．
f.c.clear(); g.c.clear();
if (N & 1) rep(i, min<ll>(f2.n / 2, N / 2 + 1)) f.c.push_back(f2[2 * i + 1]);
else rep(i, min<ll>((f2.n + 1) / 2, N / 2 + 1)) f.c.push_back(f2[2 * i]);
f.n = sz(f.c);
rep(i, min<ll>((g2.n + 1) / 2, N / 2 + 1)) g.c.push_back(g2[2 * i]);
g.n = sz(g.c);
// N を半分にして次のステップに進む．
N /= 2;
}
// N = 0 になったら定数項を返す．
return f[0] / g[0];
}
//【線形漸化式】O(n log n log N)
/*
* 初項 a[0..n) と漸化式 a[i] = Σj∈[0..n) c[j] a[i-1-j] で定義される
* 数列 a について，a[N] の値を返す．
*
* 利用：【展開係数】
*/
mint linearly_recurrent_sequence(const vm& a, const vm& c, ll N) {
// verify : https://judge.yosupo.jp/problem/kth_term_of_linearly_recurrent_sequence
int n = sz(c);
if (n == 0) return 0;
MFPS A(a), C(c);
MFPS Dnm = 1 - (C >> 1);
MFPS Num = (Dnm * A).resize(n);
return bostan_mori(Num, Dnm, N);
}
vm seq1 = { 1,2,4,7,11,16 };
vm seq2 = { 1,4,14,41,109,276,682,1665 };
vm seq3 = { 1,7,41,219,1127,5727,28993,146643,741557,3749817,18961451,95880895,484833213,451616851,396892233,686360043 };
vm seq4 = { 1,11,109,1127,11507,116167,1168587,11749135,118127409,187692416,941503422,64334503,171422004,349404640,414370692,229496054,914944380,534647147,212952523,902520682,724503479,619605103,166273791,619390877,836310386,686953732,577520664,729784802 };
vm seq5 = { 1,16,276,5727,116167,2301878,45280510,889477657,470102990,131617801,543346539,672693082,528691885,433100320,259856353,631703747,121492785,65000964,67868822,431503521,556143264,898859210,822402658,746831348,942022315,42461887,245383966,159194956,442319966,719053965,735342088,986228636,385914411,746460381,499191315,294132891,429534326,53306516,69797920,520148742,67524591,131525007,212068790,48189164,744481803,784588218,472300216,20257574,506104403,129522485,887689194,43853834,543027099,470146769,95649761,578040017,125364573,32787915,139313991,713541878,395048005,58211161,741163083,279667842,863539084,628324241 };
vm seq6 = { 1,22,682,28993,1168587,45280510,732082735,37461993,885687206,403247904,630794367,96311200,188560386,132214958,81864960,656832814,129969438,337127918,885747692,994734032,901081507,113735511,330166804,692897483,221245903,823578679,149151768,513212824,565413379,343413793,552163985,401017126,775469315,768705742,822998670,524634566,141276344,644398113,617812250,791340224,983870516,203398183,625614816,683890376,368195929,142285465,986226418,160965036,405204828,206471234,652493151,587867821,808610902,707659601,22802537,445444836,187616184,160982745,457176051,436730257,169883894,240716121,405440670,340484061,656210818,36771328,96126499,306426250,814430156,444930213,988328254,540530996,382743353,520556012,247236453,220449494,166029982,836928893,713012423,954252271,210134678,648105609,574260822,257748963,442563485,914128914,335893402,10612420,644215156,701674252,791425434,275022107,639393770,990275299,335101603,666947296,13086670,924423723,440358686,58917455,854634654,222563676,986452945,446560407,446339800,591900595,128960648,452436635,623814115,525257516,200495504,761757852,718952410,535847883,645061700,693963654,46678720,466133475,594295563,399559392,11097963,461778955,483386288,217580795,516089911,909297530,427249010,903830873,948864755,417535750,861690115,993338478,163694489,704688998,410415746,819049618,768562309,219587991,988235141,638477010,906083356,986424231 };
vm seq7 = { 1,29,1665,146643,11749135,889477657,37461993,949940563,34890375,408395780,465431124,169444073,476095425,659247955,873440608,926228359,615656155,946323265,52968125,753942505,466886221,131497624,574943443,651491967,558045774,251030381,281770572,626734328,538734010,338782740,544266405,882070772,638524753,866251040,377115308,677270991,923683804,407681395,135644898,799433051,734586419,252356852,562319012,202766612,459305662,237631149,937873189,999735042,471421438,196454675,548587823,155433695,513218159,425727802,201766012,618282734,853358525,794224020,317787455,420202006,208101996,561508158,165138108,680690786,440574803,642204070,1519936,740668821,993620893,358321041,609591538,544950608,452208171,885834625,821590677,398458088,516061105,713420419,988022778,345184827,285034176,821685365,13669477,704448104,129864473,272789357,791468168,22642556,191074949,725893031,621310462,91319076,716141216,100651621,124026882,366140816,685675712,544588614,31892810,733368800,814661721,416829951,25354706,920576065,404858751,224503154,408647841,32879425,449601452,954308701,384324117,674296839,792515238,188224956,323348586,972509241,558237932,478379645,769454590,5532216,665030505,378063245,50177023,152536856,592607000,936002696,561844588,98320628,393845744,234288388,975460551,94761065,230083311,437478028,493404366,809166707,952865396,30537949,269093030,454344597,528546170,743583992,647074730,593751774,863574929,753557945,354148308,464934710,275033860,450276862,375178857,24286588,880771044,120621726,710396663,135056588,742687866,845401043,8181487,277891375,585736420,570298111,955283695,601817564,141857658,613931528,134904118,127307581,914760873,56527074,515151065,85256391,867641312,644658124,516456197,546485054,695768128,950249036,737354236,328196922,664437559,654797168,540686072,250077161,487287553,591837922,979485088,490297243,633678447,990298549,379642971,702481129,584942894,361720239,825880867,772590736,172182905,754431547,299502653,249050692,335001905,230296478,624204289,692367469,559310444,838878898,487986150,566227277,518043210,592538137,138670607,504405050,252553467,871876659,899807948,483430874,691627538,222857970,795092245,368293696,768052891,697322359,573816333,825591678,652492802,526261994,975704776,677628082,116620384,439967591,362128952,672319243,574102272,350904082,199464685,849463039,886655362,223485421,319695723,767450462,688429207,598751130,225406155,353550553,98188262,962586133,351427960,41167574,126283439,801928141,530774618,44264408,602460016,61008883,302058087,906154633,231505142,652491962,47839346,55293957,145231826,307920924,408202726,510473598,75219689,157343986,917480790,103605311,842950391,101027708,28793071,717261126,758732083,158282974,502041349,88400442,587778290,226310005,574669992,764559582,756363640,614962462,790643572,149324329,145554686,437398155,438739803,922467739,388741007,833892012,180024032,324080540,286487276,308749487,290106847,520867997,591917944,627868972,364622579,921885726,965742314,948877023,704039083,956113452,678857978,321401848,167938673,393856198,808025504,320963439,706550785,844136493,669955529,297253669,394528416,834378235,984963757,943035613,889279747,691625658,151511815,633374999,11156662,177860661,526965345,720117943,677315005,43154459,29163606,704506503,683525033,315857848,191280598,827302312,699421299,212010428,794556815,913280490,139164874,268649426,876508476,417530150,801828701,557926860,663339430,431411357,247878362,567938232,396918036,536975308,23869545,213323066,829981562,293484930,745338800,612848889,700199509,304928069,637237107,510637207 };
vm seq8 = { 1,37,4041,741557,118127409,470102990,885687206,34890375,247777017,233426111,328755372,705627254,787442873,382905969,14599214,54410762,601006293,612557412,15449457,990194964,286282086,699722726,781620770,840139027,489073873,334785850,435236312,109774735,741619355,198733962,979223832,316303899,39151098,758722724,846456338,302710768,751509520,910422867,269441529,739223080,47041873,144990979,835832182,94144833,432122372,718847362,143249506,202420880,524474078,175432351,259981776,949834435,650788362,314338902,308488394,925015946,735629953,55340123,870087005,914406438,652461933,824517284,13384792,734924499,195917203,347913013,345009224,72962602,728865666,529666844,443583544,797807891,499559113,582526184,750449604,794171250,339435368,795879915,610395114,651525516,665256280,771083633,124044839,103256299,555278858,168723783,37135887,926137425,193565945,44104252,848927129,311714531,740363206,103826477,426742611,675142275,731839744,444416324,663478469,724122697,351972778,394976530,438819548,910482233,104665902,409225877,167205683,514913256,760105146,29299319,710711306,114816264,854763815,393789741,110116603,971095518,965304628,656067528,345333182,54369788,393350948,645767329,278297448,584309443,643959647,760481448,306899118,556007297,90782545,501999192,487093903,851119020,214855165,290938705,483935412,931413699,87706721,543982302,557974405,993894345,617966932,450284947,530064542,635450111,955879321,855098871,534537884,745899212,102957102,662330956,760521287,880202514,410332360,896841551,21942389,327590994,607470932,510274102,755158990,271684725,681115729,979634386,116288825,441075063,869557220,498624605,668265456,563569497,411144208,372553916,26571456,299681787,483501146,332251238,514296632,262088006,767350801,242709546,312245271,625558061,630739737,166453362,987400269,534085289,177342294,635886217,360697927,830064108,142999668,796390631,541632627,524331980,832128251,56784303,599770935,420185003,36118709,960687381,886180311,494123323,256629997,167297431,422622752,387880448,805197258,990906674,197392118,409215678,751867400,114891718,20016318,539423304,506437723,420323844,17970684,326175156,607163025,810675078,843118081,586603098,332437403,683685950,604167446,591515393,281318476,78155303,77262871,295568743,84378565,642943805,12418389,229594264,734305605,17384829,186823880,593406288,961690929,25278272,599757508,378599084,885999373,931931155,847818733,310703307,179718038,657210251,145528036,460498836,941558184,335135034,141616630,159440569,260876849,890714212,188331961,684788952,962770201,647749366,692000111,84789891,537064227,34450694,41361160,550194873,245249511,900342928,708273456,11582751,128969775,512056025,55621841,349004104,637116328,221258620,579454605,113893156,576214566,70474671,23918407,481813327,650352629,246808993,284149774,322921321,932867441,994253317,940618753,728504629,428989278,122474884,119546568,24132990,106306058,431011677,611024276,216092723,58878210,120907054,721629564,912245907,362994492,77928370,598179976,862251409,302060802,740845852,459478021,470575532,272055897,271404800,997912851,546477556,102801687,821058457,253389282,766070117,630671871,387593407,363890600,503970374,198459012,993364984,210948548,542855601,819226190,105570791,913838630,104902493,762607731,954174416,72362183,262189043,660554699,644882932,306650492,22189922,453123536,325669078,343206526,974951458,351413354,739439728,691749301,370158156,944047088,188614449,382554561,385741342,62378862,740868824,256532721,721260793,546722313,476298564,606762614,98776598,898445056,605244417,333859176,433695416,401161556,572855901,243667257,85343276,675159112,922771404,996753884,954048793,469148682,19943311,296231984,99393047,204271243,312577415,956614051,159362748,723539465,111719270,894138284,588450713,602782642,981925082,900433723,180543977,267328360,522848270,4196877,67000222,107779276,321728789,528597010,269434053,964941753,949825536,975030570,458728261,549511658,418171229,245570032,648210003,972434487,581872842,635344874,319802132,678265431,806155029,954458489,526854317,847377933,635338259,992797406,996032139,354562942,45336906,183006407,369367987,247817600,491651792,494803389,962480390,263666034,589248788,333002563,984917437,533517315,834849850,760791456,813814451,264438766,491534109,918145305,179243082,160538846,82373669,881806228,278695930,385349194,933393280,582444057,773641997,840937520,96345614,817752725,256578508,578658132,888553231,520544389,456331129,516837373,204008970,759828335,835082257,253914434,679107130,399776525,263641486,965389469,273920467,217978643,525012340,943300400,526528431,502684772,227319751,184383545,997961185,602742229,532755276,833719431,885093195,163222310,767604093,441111498,336002326,145020302,447897867,342728411,567522452,559761514,223634211,733274355,395895537,441758546,522228316,742539358,836415814,737295438,84803432,254857485,689895715,104233343,56504994,929273451,508576899,983431327,316933463,434800356,77235159,345405177,120253753,548205525,600098258,35022115,875707260,680477576,229617111,897981712,95828344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};
vm seq9= { 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};
int main() {
// input_from_file("input.txt");
// output_to_file("output.txt");
//【方法】
// 愚直を書いて集めたデータをもとに DFA を復元する．
//【使い方】
// 1. mint naive(文字列) を実装する．
// 2. embed_DFA(文字の種類数, 検証用文字列の集合) を実行する．
// 3. 出力を solve() 内に貼って適切な DP の型を書く．
// 4. solve<答えの型>(文字列) で勝手に DP してくれる．
// --------------------- 埋め込み用 ---------------------
//{
// auto start = chrono::system_clock::now();
// // (文字の種類数，長さの最大値，1回で追加する文字列の量，反復回数, 検証用文字列集合)
// auto [nxts, ac] = embed_DFA(1 << W, 11, 1, 100, 1, ssB);
// int DIM = sz(ac);
// auto dp = solve<mint>(2 * DIM, nxts, ac);
// auto coef = berlekamp_massey(dp);
// dp.resize(sz(coef) * 2);
// dump_math(dp);
// auto now = chrono::system_clock::now();
// auto msec = chrono::duration_cast<chrono::milliseconds>(now - start).count();
// dump(msec, "msec"); // W=9: 5041465 msec（84 分，2h30m のコンテストなので間に合っている）
// return 0;
//}
// ------------------------------------------------------
vvm seqs{ vm(), seq1, seq2, seq3, seq4, seq5, seq6, seq7, seq8, seq9 };
int n; ll m;
cin >> n >> m;
auto coef = berlekamp_massey(seqs[n]);
MFPS::set_conv(naive_convolution);
// 提出時は不要な部分を削除する．
EXIT(linearly_recurrent_sequence(seqs[n], coef, m) - 1);
}