結果

問題 No.2299 Antitypoglycemia
ユーザー OnjoujiTokiOnjoujiToki
提出日時 2023-09-16 11:08:59
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 5 ms / 2,000 ms
コード長 7,634 bytes
コンパイル時間 1,333 ms
コンパイル使用メモリ 140,692 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-07-03 11:58:56
合計ジャッジ時間 2,364 ms
ジャッジサーバーID
(参考情報)
judge2 / judge5
このコードへのチャレンジ
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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 1 ms
6,816 KB
testcase_01 AC 2 ms
6,940 KB
testcase_02 AC 2 ms
6,944 KB
testcase_03 AC 3 ms
6,940 KB
testcase_04 AC 4 ms
6,940 KB
testcase_05 AC 3 ms
6,940 KB
testcase_06 AC 3 ms
6,944 KB
testcase_07 AC 2 ms
6,940 KB
testcase_08 AC 4 ms
6,944 KB
testcase_09 AC 4 ms
6,944 KB
testcase_10 AC 2 ms
6,944 KB
testcase_11 AC 2 ms
6,940 KB
testcase_12 AC 4 ms
6,940 KB
testcase_13 AC 4 ms
6,940 KB
testcase_14 AC 2 ms
6,940 KB
testcase_15 AC 2 ms
6,940 KB
testcase_16 AC 3 ms
6,944 KB
testcase_17 AC 2 ms
6,940 KB
testcase_18 AC 3 ms
6,940 KB
testcase_19 AC 4 ms
6,944 KB
testcase_20 AC 5 ms
6,944 KB
testcase_21 AC 5 ms
6,940 KB
testcase_22 AC 4 ms
6,944 KB
testcase_23 AC 1 ms
6,944 KB
testcase_24 AC 1 ms
6,940 KB
testcase_25 AC 2 ms
6,944 KB
testcase_26 AC 2 ms
6,940 KB
testcase_27 AC 1 ms
6,944 KB
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <cstdint>
#include <cstring>
#include <ctime>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <unordered_map>
#include <unordered_set>
using namespace std;
template <int mod>
struct ModInt {
int x;
ModInt() : x(0) {}
ModInt(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
ModInt &operator+=(const ModInt &p) {
if ((x += p.x) >= mod) x -= mod;
return *this;
}
ModInt &operator-=(const ModInt &p) {
if ((x += mod - p.x) >= mod) x -= mod;
return *this;
}
ModInt &operator*=(const ModInt &p) {
x = (int)(1LL * x * p.x % mod);
return *this;
}
ModInt &operator/=(const ModInt &p) {
*this *= p.inverse();
return *this;
}
ModInt &operator^=(long long p) { // quick_pow here:3
ModInt res = 1;
for (; p; p >>= 1) {
if (p & 1) res *= *this;
*this *= *this;
}
return *this = res;
}
ModInt operator-() const { return ModInt(-x); }
ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }
ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }
ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }
ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }
ModInt operator^(long long p) const { return ModInt(*this) ^= p; }
bool operator==(const ModInt &p) const { return x == p.x; }
bool operator!=(const ModInt &p) const { return x != p.x; }
explicit operator int() const { return x; } // added by QCFium
ModInt operator=(const int p) {
x = p;
return ModInt(*this);
} // added by QCFium
ModInt inverse() const {
int a = x, b = mod, u = 1, v = 0, t;
while (b > 0) {
t = a / b;
a -= t * b;
std::swap(a, b);
u -= t * v;
std::swap(u, v);
}
return ModInt(u);
}
friend std::ostream &operator<<(std::ostream &os, const ModInt<mod> &p) {
return os << p.x;
}
friend std::istream &operator>>(std::istream &is, ModInt<mod> &a) {
long long x;
is >> x;
a = ModInt<mod>(x);
return (is);
}
};
template <typename T>
struct SegmentTree {
using Monoid = typename T::Monoid;
explicit SegmentTree(int n) : SegmentTree(std::vector<Monoid>(n, T::id())) {}
explicit SegmentTree(const std::vector<Monoid> &a) : n(a.size()), sz(1) {
while (sz < n) sz <<= 1;
data.assign(sz << 1, T::id());
std::copy(a.begin(), a.end(), data.begin() + sz);
for (int i = sz - 1; i > 0; --i) {
data[i] = T::merge(data[i << 1], data[(i << 1) + 1]);
}
}
void set(int idx, const Monoid val) {
idx += sz;
data[idx] = val;
while (idx >>= 1)
data[idx] = T::merge(data[idx << 1], data[(idx << 1) + 1]);
}
Monoid get(int left, int right) const {
Monoid res_l = T::id(), res_r = T::id();
for (left += sz, right += sz; left < right; left >>= 1, right >>= 1) {
if (left & 1) res_l = T::merge(res_l, data[left++]);
if (right & 1) res_r = T::merge(data[--right], res_r);
}
return T::merge(res_l, res_r);
}
Monoid operator[](const int idx) const { return data[idx + sz]; }
private:
const int n;
int sz; // sz + = 线1 based
std::vector<Monoid> data;
};
namespace monoid {
template <typename T>
struct RangeMinimumQuery {
using Monoid = T;
static constexpr Monoid id() { return std::numeric_limits<Monoid>::max(); }
static Monoid merge(const Monoid &a, const Monoid &b) {
return std::min(a, b);
}
};
template <typename T>
struct RangeMaximumQuery {
using Monoid = T;
static constexpr Monoid id() { return std::numeric_limits<Monoid>::lowest(); }
static Monoid merge(const Monoid &a, const Monoid &b) {
return std::max(a, b);
}
};
template <typename T>
struct RangeSumQuery {
using Monoid = T;
static constexpr Monoid id() { return 0; }
static Monoid merge(const Monoid &a, const Monoid &b) { return a + b; }
};
template <typename T>
struct RangeOrQuery {
using Monoid = T;
static constexpr Monoid id() { return 0; }
static Monoid merge(const Monoid &a, const Monoid &b) { return a | b; }
};
} // namespace monoid
template <typename T>
struct DSU {
std::vector<T> f, siz;
DSU(int n) : f(n), siz(n, 1) { std::iota(f.begin(), f.end(), 0); }
T leader(T x) {
while (x != f[x]) x = f[x] = f[f[x]];
return x;
}
bool same(T x, T y) { return leader(x) == leader(y); }
bool merge(T x, T y) {
x = leader(x);
y = leader(y);
if (x == y) return false;
siz[x] += siz[y];
f[y] = x;
return true;
}
T size(int x) { return siz[leader(x)]; }
};
bool isPrime(long long number) {
if (number != 2) {
if (number < 2 || number % 2 == 0) {
return false;
}
for (int i = 3; (i * i) <= number; i += 2) {
if (number % i == 0) {
return false;
}
}
}
return true;
}
std::pair<std::vector<int>, std::vector<int>> get_prime_factor_with_kinds(
int n) {
std::vector<int> prime_factors;
std::vector<int> cnt; // number of i_th factor
for (int i = 2; i <= sqrt(n); i++) {
if (n % i == 0) {
prime_factors.push_back(i);
cnt.push_back(0);
while (n % i == 0) n /= i, cnt[(int)prime_factors.size() - 1]++;
}
}
if (n > 1) prime_factors.push_back(n), cnt.push_back(1);
assert(prime_factors.size() == cnt.size());
return {prime_factors, cnt};
}
template <typename T>
struct FenwickTree {
std::vector<T> bit;
int n;
FenwickTree(int _n) : n(_n), bit(_n) {}
T sum(int r) {
int ret = 0;
for (; r >= 0; r = (r & (r + 1)) - 1) ret += bit[r];
return ret;
}
T sum(int l, int r) {
assert(l <= r);
return sum(r) - sum(l - 1);
} // [l, r]
void add(int idx, int delta) {
for (; idx < n; idx = idx | (idx + 1)) bit[idx] += delta;
}
};
std::string solution(std::vector<std::string> &a) {
int n = a.size(), k = a[0].size();
std::vector<std::vector<int>> cnt(26, std::vector(k, 0));
for (int i = 0; i < k; i++) {
for (int j = 0; j < n; j++) {
char cur = a[j][i];
cnt[cur - 'a'][i] += 1;
}
}
std::string ans(k, 'a');
for (int i = 0; i < k / 2; i++) { // aacd, bb
std::vector<int> mp(26, 0);
for (int j = 0; j < 26; j++) {
mp[j] += cnt[j][i];
mp[j] += cnt[j][k - i - 1];
}
for (int y = 0; y < 26; y++) {
for (int x = 0; x < mp[y]; x++) {
std::cout << y << ' ';
}
}
std::cout << '\n';
// aba, cbd -> ac
int p = 0;
int cur = 0;
while (p < n) {
p += mp[cur];
if (p >= n) {
ans[i] += cur;
ans[k - i - 1] += cur;
break;
}
cur++;
}
}
if (k & 1) {
std::vector<int> mp(26, 0);
// [n / 2]
for (int j = 0; j < 26; j++) {
mp[j] += cnt[j][k / 2];
}
int p = 0, cur = 0;
while (p < n / 2) {
p += mp[cur];
if (p >= n / 2) {
ans[k / 2] += cur;
break;
}
cur++;
}
}
return ans;
}
void solve() {
int n, l, r;
std::cin >> n >> l >> r;
using mint = ModInt<998244353>;
mint ans = 1;
for (int i = 1; i <= n; i++) ans *= i;
mint k = 1;
for (int i = 1; i <= n - 1; i++) k *= i;
ans -= k * 2;
if (l != r) {
mint t = 1;
for (int i = 1; i <= n - 2; i++) {
t *= i;
}
ans += t;
}
std::cout << ans << '\n';
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int t = 1;
while (t--) solve();
return 0;
}
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