結果
| 問題 |
No.1886 Sum of Slide Max
|
| コンテスト | |
| ユーザー |
Forested
|
| 提出日時 | 2022-03-25 21:55:32 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 47 ms / 2,000 ms |
| コード長 | 8,564 bytes |
| コンパイル時間 | 1,026 ms |
| コンパイル使用メモリ | 120,388 KB |
| 最終ジャッジ日時 | 2025-01-28 12:01:50 |
|
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 * 9 |
ソースコード
// ===== template.hpp =====
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#define OVERRIDE(a, b, c, d, ...) d
#define REP2(i, n) for (i32 i = 0; i < (i32) (n); ++i)
#define REP3(i, m, n) for (i32 i = (i32) (m); i < (i32) (n); ++i)
#define REP(...) OVERRIDE(__VA_ARGS__, REP3, REP2)(__VA_ARGS__)
#define PER(i, n) for (i32 i = (i32) (n) - 1; i >= 0; --i)
#define ALL(x) begin(x), end(x)
using namespace std;
using u32 = unsigned int;
using u64 = unsigned long long;
using u128 = __uint128_t;
using i32 = signed int;
using i64 = signed long long;
using i128 = __int128_t;
template <typename T>
using Vec = vector<T>;
template <typename T>
bool chmin(T &x, const T &y) {
if (x > y) {
x = y;
return true;
}
return false;
}
template <typename T>
bool chmax(T &x, const T &y) {
if (x < y) {
x = y;
return true;
}
return false;
}
[[maybe_unused]] constexpr i32 inf = 1000000100;
[[maybe_unused]] constexpr i64 inf64 = 3000000000000000100;
struct SetIO {
SetIO() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(10);
}
} set_io;
// ===== template.hpp =====
#ifdef DEBUGF
#include "../new_library/other/debug.hpp"
#else
#define DBG(x) (void) 0
#endif
// ===== mod_int.hpp =====
#ifndef MOD_INT_HPP
#define MOD_INT_HPP
#include <cassert>
#include <iostream>
#include <type_traits>
// ===== utils.hpp =====
#ifndef UTILS_HPP
#define UTILS_HPP
#include <cstddef>
constexpr bool is_prime(unsigned n) {
if (n == 0 || n == 1)
return false;
for (unsigned i = 2; i * i <= n; ++i) {
if (n % i == 0)
return false;
}
return true;
}
constexpr unsigned mod_pow(unsigned x, unsigned y, unsigned mod) {
unsigned ret = 1, self = x;
while (y != 0) {
if (y & 1)
ret = (unsigned long long)ret * self % mod;
self = (unsigned long long)self * self % mod;
y >>= 1;
}
return ret;
}
template <unsigned mod>
constexpr unsigned primitive_root() {
static_assert(is_prime(mod), "`mod` must be a prime number.");
if (mod == 2)
return 1;
unsigned primes[32] = {};
std::size_t it = 0;
{
unsigned m = mod - 1;
for (unsigned i = 2; i * i <= m; ++i) {
if (m % i == 0) {
primes[it++] = i;
while (m % i == 0)
m /= i;
}
}
if (m != 1)
primes[it++] = m;
}
for (unsigned i = 2; i < mod; ++i) {
bool ok = true;
for (std::size_t j = 0; j < it; ++j) {
if (mod_pow(i, (mod - 1) / primes[j], mod) == 1) {
ok = false;
break;
}
}
if (ok)
return i;
}
return 0;
}
#endif
// ===== utils.hpp =====
template <typename T, std::enable_if_t<std::is_signed_v<T>> * = nullptr>
constexpr unsigned safe_mod(T x, unsigned mod) {
if (x < 0) {
return (unsigned)(x % (T)mod + mod);
} else {
return (unsigned)(x % (T)mod);
}
}
template <typename T, std::enable_if_t<std::is_unsigned_v<T>> * = nullptr>
constexpr unsigned safe_mod(T x, unsigned mod) {
return (unsigned)(x % mod);
}
template <unsigned mod>
class ModInt {
static_assert(mod != 0, "`mod` must not be equal to 0.");
static_assert(
mod < (1u << 31),
"`mod` must be less than (1u << 31) = 2147483648.");
unsigned val;
public:
constexpr ModInt() : val(0) {}
template <typename T>
constexpr ModInt(T x) : val(safe_mod(x, mod)) {}
static constexpr ModInt raw(unsigned x) {
ModInt<mod> ret;
ret.val = x;
return ret;
}
constexpr unsigned get_val() const {
return val;
}
constexpr ModInt operator+() const {
return *this;
}
constexpr ModInt operator-() const {
return ModInt<mod>(0u) - *this;
}
constexpr ModInt &operator+=(const ModInt &rhs) {
val += rhs.val;
if (val >= mod)
val -= mod;
return *this;
}
constexpr ModInt &operator-=(const ModInt &rhs) {
if (val < rhs.val)
val += mod;
val -= rhs.val;
return *this;
}
constexpr ModInt &operator*=(const ModInt &rhs) {
val = (unsigned long long)val * rhs.val % mod;
return *this;
}
constexpr ModInt &operator/=(const ModInt &rhs) {
val = (unsigned long long)val * rhs.inv().val % mod;
return *this;
}
friend constexpr ModInt operator+(const ModInt &lhs, const ModInt &rhs) {
return ModInt<mod>(lhs) += rhs;
}
friend constexpr ModInt operator-(const ModInt &lhs, const ModInt &rhs) {
return ModInt<mod>(lhs) -= rhs;
}
friend constexpr ModInt operator*(const ModInt &lhs, const ModInt &rhs) {
return ModInt<mod>(lhs) *= rhs;
}
friend constexpr ModInt operator/(const ModInt &lhs, const ModInt &rhs) {
return ModInt<mod>(lhs) /= rhs;
}
constexpr ModInt pow(unsigned long long x) const {
ModInt<mod> ret = ModInt<mod>::raw(1);
ModInt<mod> self = *this;
while (x != 0) {
if (x & 1)
ret *= self;
self *= self;
x >>= 1;
}
return ret;
}
constexpr ModInt inv() const {
static_assert(is_prime(mod), "`mod` must be a prime number.");
assert(val != 0);
return this->pow(mod - 2);
}
friend std::istream &operator>>(std::istream &is, ModInt<mod> &x) {
is >> x.val;
// x.val %= mod;
return is;
}
friend std::ostream &operator<<(std::ostream &os, const ModInt<mod> &x) {
os << x.val;
return os;
}
friend bool operator==(const ModInt &lhs, const ModInt &rhs) {
return lhs.val == rhs.val;
}
friend bool operator!=(const ModInt &lhs, const ModInt &rhs) {
return lhs.val != rhs.val;
}
};
[[maybe_unused]] constexpr unsigned mod998244353 = 998244353;
[[maybe_unused]] constexpr unsigned mod1000000007 = 1000000007;
#endif
// ===== mod_int.hpp =====
// ===== factorial_table.hpp =====
#ifndef FACTORIAL_TABLE_HPP
#define FACTORIAL_TABLE_HPP
#include <vector>
template <typename T>
class FactorialTable {
std::vector<T> fac;
std::vector<T> ifac;
public:
FactorialTable() : fac(1, T(1)), ifac(1, T(1)) {}
FactorialTable(std::size_t n) : fac(n + 1), ifac(n + 1) {
fac[0] = T(1);
for (std::size_t i = 1; i <= n; ++i) {
fac[i] = fac[i - 1] * T(i);
}
ifac[n] = T(1) / T(fac[n]);
for (std::size_t i = n; i > 0; --i) {
ifac[i - 1] = ifac[i] * T(i);
}
}
void resize(std::size_t n) {
std::size_t old = n_max();
if (n <= old) {
return;
}
fac.resize(n + 1);
for (std::size_t i = old + 1; i <= n; ++i) {
fac[i] = fac[i - 1] * T(i);
}
ifac.resize(n + 1);
ifac[n] = T(1) / T(fac[n]);
for (std::size_t i = n; i > old; --i) {
ifac[i - 1] = ifac[i] * T(i);
}
}
inline std::size_t n_max() const {
return fac.size() - 1;
}
inline T fact(std::size_t n) const {
assert(n <= n_max());
return fac[n];
}
inline T inv_fact(std::size_t n) const {
assert(n <= n_max());
return ifac[n];
}
inline T choose(std::size_t n, std::size_t k) const {
assert(k <= n_max() && n <= n_max());
if (k > n) {
return T(0);
}
return fac[n] * ifac[k] * ifac[n - k];
}
inline T multi_choose(std::size_t n, std::size_t k) const {
assert(n >= 1 && k + n - 1 <= n_max());
return choose(k + n - 1, k);
}
};
#endif
// ===== factorial_table.hpp =====
using Mint = ModInt<mod998244353>;
Mint sum(const FactorialTable<Mint> &table, i32 k, i32 n) {
return table.fact(n + 1) / Mint::raw(k + 1) * table.inv_fact(n - k);
}
int main() {
i32 n;
cin >> n;
FactorialTable<Mint> table(n + 1);
REP(k, 1, n + 1) {
cout << Mint::raw(n - k + 1) * Mint::raw(k) * table.fact(n - k) * sum(table, k, n) << '\n';
}
}
Forested