結果
| 問題 |
No.2615 ペアの作り方
|
| コンテスト | |
| ユーザー |
Today03
|
| 提出日時 | 2024-01-26 21:26:17 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,678 bytes |
| コンパイル時間 | 2,070 ms |
| コンパイル使用メモリ | 194,632 KB |
| 最終ジャッジ日時 | 2025-02-18 22:55:28 |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 10 WA * 11 |
ソースコード
#include <bits/stdc++.h>
#ifdef LOCAL
#include "./debug.cpp"
#else
#define debug(...)
#define print_line
#endif
using namespace std;
using ll = long long;
#include <iostream>
/**
* @brief Modint
*/
template <long long MOD>
struct modint {
long long value;
modint(long long x = 0) {
if (x >= 0) {
value = x % MOD;
} else {
value = MOD - (-x) % MOD;
}
}
modint operator-() const {
return modint(-value);
}
modint operator+() const {
return modint(*this);
}
modint &operator+=(const modint &other) {
value += other.value;
if (value >= MOD) {
value -= MOD;
}
return *this;
}
modint &operator-=(const modint &other) {
value += MOD - other.value;
if (value >= MOD) {
value -= MOD;
}
return *this;
}
modint &operator*=(const modint other) {
value = value * other.value % MOD;
return *this;
}
modint &operator/=(modint other) {
(*this) *= other.inv();
return *this;
}
modint operator+(const modint &other) const {
return modint(*this) += other;
}
modint operator-(const modint &other) const {
return modint(*this) -= other;
}
modint operator*(const modint &other) const {
return modint(*this) *= other;
}
modint operator/(const modint &other) const {
return modint(*this) /= other;
}
modint pow(long long x) const {
modint ret(1), mul(value);
while (x > 0) {
if (x % 2 == 1) {
ret *= mul;
}
mul *= mul;
x /= 2;
}
return ret;
}
modint inv() const {
return pow(MOD - 2);
}
bool operator==(const modint &other) const {
return value == other.value;
}
bool operator!=(const modint &other) const {
return value != other.value;
}
friend std::ostream &operator<<(std::ostream &os, const modint &x) {
return os << x.value;
}
friend std::istream &operator>>(std::istream &is, modint &x) {
long long v;
is >> v;
x = modint<MOD>(v);
return is;
}
};
using mod998 = modint<998244353>;
using mod107 = modint<1000000007>;
using mint = mod998;
int main() {
int N;
cin >> N;
vector<int> X(N), Y(N);
for (int i = 0; i < N; i++) cin >> X[i];
for (int i = 0; i < N; i++) cin >> Y[i];
mint ans = 1;
for (int i = 1; i <= N / 2; i++) ans *= i;
for (int i = 1; i <= N / 2; i++) ans *= i;
if (N % 2 == 1) ans *= (N / 2 + 1);
cout << ans << endl;
}
Today03