結果
問題 | No.2580 Hyperinflation |
ユーザー | noshi91 |
提出日時 | 2023-03-24 04:04:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 9,137 bytes |
コンパイル時間 | 4,560 ms |
コンパイル使用メモリ | 254,412 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-25 16:02:35 |
合計ジャッジ時間 | 17,428 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
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testcase_00 | WA | - |
testcase_01 | AC | 2 ms
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testcase_02 | WA | - |
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ソースコード
//#define NDEBUG #pragma warning(disable : 4146) #include <bits/stdc++.h> namespace n91 { using i32 = std::int32_t; using i64 = std::int64_t; using u32 = std::uint32_t; using u64 = std::uint64_t; using isize = std::ptrdiff_t; using usize = std::size_t; using f64 = double; struct rep { struct itr { usize i; constexpr itr(const usize i) noexcept : i(i) {} void operator++() noexcept { ++i; } constexpr usize operator*() const noexcept { return i; } constexpr bool operator!=(const itr x) const noexcept { return i != x.i; } }; const itr f, l; constexpr rep(const usize f, const usize l) noexcept : f(std::min(f, l)), l(l) {} constexpr auto begin() const noexcept { return f; } constexpr auto end() const noexcept { return l; } }; struct revrep { struct itr { usize i; constexpr itr(const usize i) noexcept : i(i) {} void operator++() noexcept { --i; } constexpr usize operator*() const noexcept { return i; } constexpr bool operator!=(const itr x) const noexcept { return i != x.i; } }; const itr f, l; constexpr revrep(const usize f, const usize l) noexcept : f(l - 1), l(std::min(f, l) - 1) {} constexpr auto begin() const noexcept { return f; } constexpr auto end() const noexcept { return l; } }; template <class T> auto md_vec(const usize n, const T &value) { return std::vector<T>(n, value); } template <class... Args> auto md_vec(const usize n, Args... args) { return std::vector<decltype(md_vec(args...))>(n, md_vec(args...)); } template <class T> constexpr T difference(const T &a, const T &b) noexcept { return a < b ? b - a : a - b; } template <class T> void chmin(T &a, const T &b) noexcept { if (b < a) a = b; } template <class T> void chmax(T &a, const T &b) noexcept { if (a < b) a = b; } template <class F> class rec_lambda { F f; public: rec_lambda(F &&f_) : f(std::forward<F>(f_)) {} template <class... Args> auto operator()(Args &&... args) const { return f(*this, std::forward<Args>(args)...); } }; template <class T> T scan() { T ret; std::cin >> ret; return ret; } constexpr char eoln = '\n'; i64 floor_div(const i64 n, const i64 d) { assert(d != 0); return n / d - static_cast<i64>((n ^ d) < 0 && n % d != 0); } i64 ceil_div(const i64 n, const i64 d) { assert(d != 0); return n / d + static_cast<i64>((n ^ d) >= 0 && n % d != 0); } #ifdef N91_LOCAL #define OJ_LOCAL(a, b) b #else #define OJ_LOCAL(a, b) a #endif } // namespace n91 #ifndef NOSHI91_POLYNOMIAL_INTERNAL #define NOSHI91_POLYNOMIAL_INTERNAL #include <vector> #include <atcoder/convolution> namespace noshi91 { namespace polynomial { template <class T> const atcoder::internal::fft_info<T> info; template <class T> void dft(std::vector<T> &a) { atcoder::internal::butterfly(a); } template <class T> void inv_dft(std::vector<T> &a) { atcoder::internal::butterfly_inv(a); T c = T::mod() - (T::mod() - 1) / a.size(); for (auto &e : a) e *= c; } } // namespace polynomial } // namespace noshi91 #endif #ifndef NOSHI91_MODINT_UTILITY #define NOSHI91_MODINT_UTILITY #include <cassert> #include <vector> namespace noshi91 { template <class T> class modint_utility { static inline std::vector<T> fact_ = {T::raw(1)}; static inline std::vector<T> inv_fact_ = {T::raw(1)}; static inline std::vector<T> inv_num_ = {T::raw(1)}; static void extend(const int n) { if (n < fact_.size()) return; const int s = fact_.size(); int t = 2 * s; while (n >= t) t *= 2; fact_.resize(t); inv_fact_.resize(t); inv_num_.resize(t); for (int i = s; i < t; i++) fact_[i] = fact_[i - 1] * T::raw(i); inv_fact_.back() = T::raw(1) / fact_.back(); for (int i = t - 1; i > s; i--) inv_fact_[i - 1] = inv_fact_[i] * T::raw(i); for (int i = t; i-- > s;) inv_num_[i] = inv_fact_[i] * fact_[i - 1]; } public: modint_utility() = delete; static T fact(const int n) { assert(0 <= n); extend(n); return fact_[n]; } static T inv_fact(const int n) { assert(0 <= n); extend(n); return inv_fact_[n]; } static T inv_num(const int n) { assert(0 <= n); extend(n); return inv_num_[n]; } static T binom(const int n, const int r) { assert(0 <= n); if (r < 0 || n < r) { return T::raw(0); } else { extend(n); return fact_[n] * inv_fact_[r] * inv_fact_[n - r]; } } static T binom2(const int a, const int b) { assert(0 <= a && 0 <= b); extend(a + b); return fact_[a + b] * inv_fact_[a] * inv_fact_[b]; } static T homo(const int n, const int r) { assert(1 <= n && 0 <= r); extend(n + r - 1); return fact_[n + r - 1] * inv_fact_[n - 1] * inv_fact_[r]; } static T perm(const int n, const int r) { assert(0 <= r); if (n < r) { return T::raw(0); } else { extend(n); return fact_[n] * inv_fact_[n - r]; } } }; } // namespace noshi91 #endif #include <algorithm> #include <cassert> #include <functional> #include <vector> namespace noshi91 { namespace polynomial { template <class T> std::vector<T> inverse(const std::vector<T> &f) { int n = f.size(); if (n == 0) return {}; assert(f[0] != T(0)); std::vector<T> g(n); g[0] = T(1) / f[0]; int p = 1; while (p < n) { std::vector<T> f_(2 * p, T(0)), g_(2 * p, T(0)); std::copy(f.begin(), f.begin() + std::min(2 * p, n), f_.begin()); dft(f_); std::copy(g.begin(), g.begin() + p, g_.begin()); dft(g_); for (int i = 0; i < 2 * p; i++) f_[i] *= g_[i]; inv_dft(f_); std::fill(f_.begin(), f_.begin() + p, T(0)); dft(f_); for (int i = 0; i < 2 * p; i++) f_[i] *= g_[i]; inv_dft(f_); std::transform(f_.begin() + p, f_.begin() + std::min(2 * p, n), g.begin() + p, std::negate<>()); p *= 2; } return g; } } // namespace polynomial } // namespace noshi91 #include <atcoder/convolution> namespace noshi91 { namespace polynomial { // p: polynomial // s(k) = sum[i in [0, k)] p(i) template <class T> std::vector<T> cumsum(std::vector<T> p) { using util = modint_utility<T>; const int n = p.size(); std::vector<T> op(n); for (int i = 0; i < n; i++) op[i] = util::inv_fact(i + 1); op = inverse(op); for (int i = 0; i < n; i++) p[i] *= util::fact(i); std::reverse(p.begin(), p.end()); p = atcoder::convolution(p, op); p.resize(n + 1); std::reverse(p.begin(), p.end()); p[0] = T::raw(0); for (int i = 0; i < n + 1; i++) p[i] *= util::inv_fact(i); return p; } } // namespace polynomial } // namespace noshi91 #include <atcoder/convolution> namespace noshi91 { namespace polynomial { // p: polynomial // return: p(x + c) = exp(cD)p template <class T> std::vector<T> taylor_shift(std::vector<T> p, const T &c) { using util = modint_utility<T>; const int n = p.size(); std::vector<T> op(n); T t = 1; for (int i = 0; i < n; i++) op[i] = t * util::inv_fact(i), t *= c; for (int i = 0; i < n; i++) p[i] *= util::fact(i); std::reverse(p.begin(), p.end()); p = atcoder::convolution(p, op); p.resize(n); std::reverse(p.begin(), p.end()); for (int i = 0; i < n; i++) p[i] *= util::inv_fact(i); return p; } } // namespace polynomial } // namespace noshi91 #include <vector> namespace noshi91 { namespace polynomial { template <class T> T evaluate(const std::vector<T> &p, const T &x) { T r = 0; for (int i = p.size(); i-- > 0;) r = r * x + p[i]; return r; } } // namespace polynomial } // namespace noshi91 #include <atcoder/modint> namespace n91 { using mint = atcoder::modint998244353; void add(std::vector<u32> &m, u32 a) { isize p = m.size() - 1; while (a) { if (p < 0) m.insert(m.begin(), 0), p++; m[p] += a; a = m[p] / 10; m[p] %= 10; p--; } } u32 divrem(std::vector<u32> &m, const u32 d) { std::vector<u32> q; u32 r = 0; for (const auto &e : m) { if (!q.empty()) q.push_back(0); r = r * 10 + e; add(q, r / d); r %= d; } m = std::move(q); return r; } mint takemod(const std::vector<u32> &m) { mint r = 0; for (const auto &e : m) r = r * 10 + e; return r; } void main_() { const usize n = scan<usize>(); std::vector<usize> a(n); for (auto &e : a) { std::cin >> e; } std::vector<u32> m; { const std::string s = scan<std::string>(); const usize x = s.size(); m.resize(x); for (const usize i : rep(0, x)) { m[i] = s[i] - '0'; } } std::vector<mint> p(1, 1); for (const usize i : rep(1, n)) { const u32 rem = divrem(m, a[i]); p = noshi91::polynomial::taylor_shift<mint>(p, rem); { mint t = 1; for (auto &e : p) e *= t, t *= mint::raw(a[i]); } p = noshi91::polynomial::cumsum(p); p = noshi91::polynomial::taylor_shift<mint>(p, 1); } std::cout << noshi91::polynomial::evaluate(p, takemod(m)).val() << "\n"; } } // namespace n91 int main() { //* std::ios::sync_with_stdio(false); std::cin.tie(nullptr); //*/ std::cout << std::fixed << std::setprecision(20); n91::main_(); return 0; }