結果
問題 | No.1574 Swap and Repaint |
ユーザー | KoD |
提出日時 | 2021-06-26 20:21:42 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2,023 ms / 10,000 ms |
コード長 | 4,082 bytes |
コンパイル時間 | 3,828 ms |
コンパイル使用メモリ | 250,284 KB |
実行使用メモリ | 14,468 KB |
最終ジャッジ日時 | 2024-10-03 12:29:16 |
合計ジャッジ時間 | 26,700 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 1 ms
5,248 KB |
testcase_06 | AC | 1 ms
5,248 KB |
testcase_07 | AC | 1 ms
5,248 KB |
testcase_08 | AC | 1 ms
5,248 KB |
testcase_09 | AC | 5 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 3 ms
5,248 KB |
testcase_12 | AC | 3 ms
5,248 KB |
testcase_13 | AC | 3 ms
5,248 KB |
testcase_14 | AC | 3 ms
5,248 KB |
testcase_15 | AC | 4 ms
5,248 KB |
testcase_16 | AC | 1 ms
5,248 KB |
testcase_17 | AC | 2 ms
5,248 KB |
testcase_18 | AC | 323 ms
6,448 KB |
testcase_19 | AC | 1,897 ms
14,000 KB |
testcase_20 | AC | 532 ms
7,096 KB |
testcase_21 | AC | 267 ms
6,212 KB |
testcase_22 | AC | 238 ms
5,976 KB |
testcase_23 | AC | 41 ms
5,248 KB |
testcase_24 | AC | 1,643 ms
12,836 KB |
testcase_25 | AC | 695 ms
8,692 KB |
testcase_26 | AC | 12 ms
5,248 KB |
testcase_27 | AC | 193 ms
5,620 KB |
testcase_28 | AC | 1,993 ms
14,344 KB |
testcase_29 | AC | 1,993 ms
14,340 KB |
testcase_30 | AC | 1,973 ms
14,468 KB |
testcase_31 | AC | 2,023 ms
14,340 KB |
testcase_32 | AC | 1,977 ms
14,408 KB |
testcase_33 | AC | 2,000 ms
14,340 KB |
testcase_34 | AC | 2,006 ms
14,344 KB |
testcase_35 | AC | 1,981 ms
14,340 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/convolution> #include <atcoder/modint> using i32 = std::int32_t; using u32 = std::uint32_t; using i64 = std::int64_t; using u64 = std::uint64_t; using i128 = __int128_t; using u128 = __uint128_t; using isize = std::ptrdiff_t; using usize = std::size_t; class rep { struct Iter { usize itr; constexpr Iter(const usize pos) noexcept : itr(pos) {} constexpr void operator++() noexcept { ++itr; } constexpr bool operator!=(const Iter& other) const noexcept { return itr != other.itr; } constexpr usize operator*() const noexcept { return itr; } }; const Iter first, last; public: explicit constexpr rep(const usize first, const usize last) noexcept : first(first), last(std::max(first, last)) {} constexpr Iter begin() const noexcept { return first; } constexpr Iter end() const noexcept { return last; } }; class revrep { struct Iter { usize itr; constexpr Iter(const usize pos) noexcept : itr(pos) {} constexpr void operator++() noexcept { --itr; } constexpr bool operator!=(const Iter& other) const noexcept { return itr != other.itr; } constexpr usize operator*() const noexcept { return itr; } }; const Iter first, last; public: explicit constexpr revrep(const usize first, const usize last) noexcept : first(last - 1), last(std::min(first, last) - 1) {} constexpr Iter begin() const noexcept { return first; } constexpr Iter end() const noexcept { return last; } }; template <class T> using Vec = std::vector<T>; using Fp = atcoder::modint998244353; const auto INV2 = Fp(1) / Fp(2); void main_() { usize N; std::cin >> N; Vec<Fp> A(N); for (auto& x : A) { u32 y; std::cin >> y; x = y; } Vec<Fp> C(N); { Vec<Fp> more(N); more[N - 1] = Fp(1); for (const auto i : revrep(1, N)) { more[i - 1] = more[i] * Fp(i); } Vec<Fp> pow2(2 * N); pow2[0] = 1; for (const auto i : rep(1, 2 * N)) { pow2[i] = pow2[i - 1] * 2; } Fp sum; for (const auto i : rep(0, N - 1)) { sum += (more[i] - more[i + 1] * INV2) * pow2[2 * ((N - 1) - i) + i]; C[i] = sum; } for (const auto i : rep(0, N)) { C[N - 1] += more[i] * pow2[2 * ((N - 1) - i) + i]; } } A.resize(2 * N); C.resize(2 * N); for (const auto i : rep(0, N)) { A[2 * N - i - 1] = A[i]; C[2 * N - i - 1] = C[i]; } const auto N2 = 2 * N; std::reverse(C.begin(), C.end()); auto F = atcoder::convolution(A, C); for (const auto i : rep(N2, F.size())) { F[i - N2] += F[i]; } F.resize(N2); std::reverse(F.begin(), F.end()); const usize K = std::min(N2, (usize)(std::sqrt(N * std::log(N)))); Vec<Vec<Fp>> D_base(K + 1); D_base[0] = {Fp(1)}; for (const auto i : rep(1, K + 1)) { D_base[i].resize(D_base[i - 1].size() + 2); for (const auto j : rep(0, D_base[i - 1].size())) { D_base[i][j] += D_base[i - 1][j]; D_base[i][j + 1] += D_base[i - 1][j] * Fp((isize)N - 3); D_base[i][j + 2] += D_base[i - 1][j]; } } Vec<typename Vec<Fp>::const_iterator> D(K); for (const auto i : rep(0, K)) { D[i] = D_base[i].cbegin() + (D_base[i].size() / 2); } for (const auto i : rep(0, N + 1)) { if (i % K == 0 and i != 0) { const auto tmp = atcoder::convolution(F, D_base[K]); F.assign(N2, 0); for (const auto i : rep(0, tmp.size())) { F[(i + N2 - K) % N2] += tmp[i]; } } Fp ans; const isize width = i % K; for (isize i = -width; i <= width; i += 1) { ans += F[i < 0 ? i + N2 : i] * D[width][i]; } std::cout << (ans * INV2).val() << '\n'; } } int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(nullptr); main_(); return 0; }