結果
問題 | No.2004 Incremental Coins |
ユーザー |
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提出日時 | 2022-07-08 22:12:36 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 358 ms / 2,000 ms |
コード長 | 4,764 bytes |
コンパイル時間 | 2,970 ms |
コンパイル使用メモリ | 134,424 KB |
最終ジャッジ日時 | 2025-01-30 05:23:39 |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 20 |
ソースコード
//#define NDEBUG#pragma warning(disable : 4146)#include <algorithm>#include <cassert>#include <cstddef>#include <cstdint>#include <iomanip>#include <ios>#include <iostream>#include <utility>#include <vector>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>#include<deque>namespace n91 {void main_() {using mint = atcoder::modint998244353;const usize n = scan<usize>() + 1;const u64 k = scan<u64>();std::vector<mint> a(n);for (auto& e : a) {e = scan<u32>();}std::vector<std::vector<usize>> g(n);for (const usize i : rep(1, n)) {g[scan<usize>()].push_back(i);}std::vector<mint> c(n);c[0] = 1;for (const usize i : rep(1, std::min<u64>(n, k + 1))) {c[i] = c[i - 1] * (k - i + 1) / i;}const auto back = [&](const std::deque<usize>& p) {const usize m = p.size();std::vector<mint> b(m);for (const usize i : rep(0, m)) {b[i] = a[p[m - 1 - i]];}std::vector<mint> t(c.begin(), c.begin() + m);auto conv = atcoder::convolution(b, t);conv.resize(m);std::reverse(conv.begin(), conv.end());return conv;};std::vector<mint> ans(n, 0);auto v =rec_lambda([&](const auto& solve, const usize v) -> std::deque<usize> {std::deque<usize> t;for (const usize ch : g[v]) {auto r = solve(ch);if (t.size() < r.size()) {std::swap(t, r);}const usize m = r.size();const auto conv = back(r);for (const usize i : rep(0, m)) {ans[r[i]] += conv[i];ans[t[i]] -= conv[i];}for (const usize i : rep(0, m)) {a[t[i]] += a[r[i]];}}t.push_front(v);return t;})(0);const auto conv = back(v);for (const usize i : rep(0, v.size())) {ans[v[i]] += conv[i];}for (const auto& e : ans) {std::cout << e.val() << eoln;}}} // namespace n91int main() {//*std::ios::sync_with_stdio(false);std::cin.tie(nullptr);//*/std::cout << std::fixed << std::setprecision(20);n91::main_();return 0;}