結果
問題 | No.2349 Power!! (Hard) |
ユーザー | noshi91 |
提出日時 | 2023-06-10 00:12:17 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,556 bytes |
コンパイル時間 | 3,924 ms |
コンパイル使用メモリ | 246,100 KB |
実行使用メモリ | 6,940 KB |
最終ジャッジ日時 | 2024-06-10 15:11:17 |
合計ジャッジ時間 | 22,677 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 |
---|---|---|
testcase_00 | AC | 12 ms
5,248 KB |
testcase_01 | AC | 3,316 ms
5,528 KB |
testcase_02 | AC | 3,357 ms
5,516 KB |
testcase_03 | AC | 3,360 ms
5,572 KB |
testcase_04 | AC | 1,012 ms
5,376 KB |
testcase_05 | TLE | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
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 #include <atcoder/convolution> #include <atcoder/modint> using mint = atcoder::modint998244353; namespace n91 { std::vector<mint> multipoint_evauation_geometric(std::vector<mint> f, const mint a, const mint r, const int n) { if (n == 0) return {}; const int m = f.size(); if (m == 0) return std::vector<mint>(n, 0); { mint t = 1; for (int i = 0; i < m; i++) f[i] *= t, t *= a; } if (r == 0) { std::vector<mint> ret(n, 0); for (int i = 0; i < m; i++) ret[0] += f[i]; return ret; } const int l = 1 << (31 - __builtin_clz(2 * (n + m - 1) - 1)); std::vector<mint> t(l), it(std::max(n, m)); { mint p = 1, pp = 1; for (int i = 0; i < l; i++) { t[i] = pp; pp *= p; p *= r; } } { const mint inv = 1 / r; mint p = 1, pp = 1; for (int i = 0; i < it.size(); i++) { it[i] = pp; pp *= p; p *= inv; } } for (int i = 0; i < m; i++) f[i] *= it[i]; std::reverse(f.begin(), f.end()); f.resize(l); atcoder::internal::butterfly(f); atcoder::internal::butterfly(t); for (int i = 0; i < l; i++) f[i] *= t[i]; atcoder::internal::butterfly_inv(f); const mint c = 1 / mint(l); std::vector<mint> ret(n); for (int i = 0; i < n; i++) ret[i] = f[m - 1 + i] * c * it[i]; return ret; } template <int Radix> struct powers { std::vector<std::array<mint, Radix>> table; powers(mint base, long long emax) : table() { long long bp = 1; while (true) { table.emplace_back(); mint p = 1; for (int i = 0; i < Radix; i++) table.back()[i] = p, p *= base; base = p; if (bp > emax/Radix) break; bp *= Radix; } } mint operator[](long long e) const { mint ret = 1; int i = 0; while (e) { ret *= table[i][e % Radix]; e /= Radix; i++; } return ret; } }; void solve() { const mint a = scan<u32>(); const u32 n = scan<u32>(); usize b = 0; while ((b + 1) * (b + 1) <= n) b++; std::vector<mint> f(b); const powers<1 << 16> pow(a, 1LL << 60); for (const usize i : rep(0, b)) { f[i] = pow[u64(i) * i]; } const auto seq = multipoint_evauation_geometric(f, 1, pow[2 * b], b); mint ans = 0; for (const usize i : rep(0, b)) { ans += seq[i] * pow[u64(b) * b * i * i]; } for (const usize i : rep(b* b, n)) { ans += pow[u64(i) * i]; } std::cout << ans.val() << eoln; } void main_() { const usize t = scan<usize>(); for (const usize i : rep(0, t)) solve(); } } // 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; }