結果
問題 | No.2615 ペアの作り方 |
ユーザー | nono00 |
提出日時 | 2024-01-26 21:29:06 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 122 ms / 2,000 ms |
コード長 | 3,635 bytes |
コンパイル時間 | 3,406 ms |
コンパイル使用メモリ | 266,572 KB |
実行使用メモリ | 11,136 KB |
最終ジャッジ日時 | 2024-09-28 07:40:59 |
合計ジャッジ時間 | 4,753 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 3 ms
6,940 KB |
testcase_10 | AC | 3 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 116 ms
10,880 KB |
testcase_16 | AC | 115 ms
10,884 KB |
testcase_17 | AC | 121 ms
10,880 KB |
testcase_18 | AC | 122 ms
10,884 KB |
testcase_19 | AC | 106 ms
10,884 KB |
testcase_20 | AC | 108 ms
11,136 KB |
ソースコード
#include <bits/stdc++.h> #include <iostream> namespace nono { namespace internal { constexpr bool is_prime(unsigned long long n) { for (unsigned long long i = 2; i * i <= n; i++) { if (n % i == 0) return false; } return true; } } // namespace internal template <unsigned long long MOD = 998244353> class Modint { public: static_assert(internal::is_prime(MOD)); constexpr Modint(unsigned long long value = 0): value_(value % MOD) {} constexpr Modint pow(long long exp) const { Modint result(1); Modint base(*this); while (exp > 0) { if (exp & 1) { result *= base; } base *= base; exp >>= 1; } return result; } constexpr Modint inv() const { return pow(MOD - 2); } void set(unsigned long long value) { if (value >= MOD) value %= MOD; value_ = value; } unsigned long long get() const { return value_; } friend constexpr bool operator==(const Modint lhs, const Modint rhs) { return lhs.value_ == rhs.value_; } constexpr Modint& operator+=(const Modint other) { this->value_ += other.value_; if (this->value_ >= MOD) this->value_ -= MOD; return *this; } constexpr Modint& operator-=(const Modint other) { this->value_ += MOD - other.value_; if (this->value_ >= MOD) this->value_ -= MOD; return *this; } constexpr Modint& operator*=(const Modint other) { this->value_ *= other.value_; if (this->value_ >= MOD) this->value_ %= MOD; return *this; } constexpr Modint& operator/=(const Modint other) { return *this *= other.inv(); } constexpr friend Modint operator+(const Modint lhs, const Modint rhs) { return Modint(lhs) += rhs; } constexpr friend Modint operator-(const Modint lhs, const Modint rhs) { return Modint(lhs) -= rhs; } constexpr friend Modint operator*(const Modint lhs, const Modint rhs) { return Modint(lhs) *= rhs; } constexpr friend Modint operator/(const Modint lhs, const Modint rhs) { return Modint(lhs) /= rhs; } friend std::istream& operator>>(std::istream& stream, Modint& mint) { unsigned long long value; stream >> value; mint.set(value); return stream; } friend std::ostream& operator<<(std::ostream& stream, Modint mint) { stream << mint.get(); return stream; } private: unsigned long long value_; }; using Modint998244353 = Modint<998244353>; using Modint1000000007 = Modint<1000000007>; } // namespace nono void solve() { using Mint = nono::Modint998244353; int n; std::cin >> n; std::vector<long long> x(n), y(n); for (int i = 0; i < n; i++) std::cin >> x[i]; for (int i = 0; i < n; i++) std::cin >> y[i]; std::vector<long long> z; for (int i = 0; i < n; i++) { z.push_back(x[i]); z.push_back(y[i]); } std::ranges::sort(z); std::set<long long> s; for (int i = 0; i < n; i++) { s.insert(z[i]); } int a = 0, b = 0; for (int i = 0; i < n; i++) { if (s.contains(x[i])) a++; if (s.contains(y[i])) b++; } auto fact = [](int n) { Mint ans = 1; for (int i = 1; i <= n; i++) ans *= i; return ans; }; std::cout << fact(a) * fact(b) << '\n'; } int main() { std::cin.tie(0)->sync_with_stdio(0); std::cout << std::fixed << std::setprecision(16); int t = 1; while (t--) solve(); }