結果

問題 No.3073 Fraction Median
ユーザー Yudai0606Nazo
提出日時 2025-08-01 00:58:01
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 1,058 ms / 2,500 ms
コード長 2,853 bytes
コンパイル時間 4,605 ms
コンパイル使用メモリ 253,604 KB
実行使用メモリ 9,128 KB
最終ジャッジ日時 2025-08-01 00:58:22
合計ジャッジ時間 20,833 ms
ジャッジサーバーID
(参考情報)
judge1 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 18
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 #

#ifndef ONLINE_JUDGE
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
#include <cassert>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using mint = modint998244353;
//using mint = modint1000000007;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repu(i, s, t) for (int i = (int)(s); i < (int)(t); i++)
#define repd(i, s, t) for (int i = (int)(s)-1; i >= (int)(t); i--)
#define all(v) v.begin(), v.end()
void _u() { cerr << endl; } template <class H, class... T> void _u(H&& h, T&&... t) { cerr << h << ", "; _u(move(t)...); }
#define U(...) { cerr << #__VA_ARGS__ << ": "; _u(__VA_ARGS__); }
template<typename T> bool chmax(T &a, const T b) { if(a >= b) return false; a = b; return true; }
template<typename T> bool chmin(T &a, const T b) { if(a <= b) return false; a = b; return true; }
template<typename T> istream& operator>>(istream &in, vector<T> &a) { for(T &x: a) in >> x; return in; }
template<typename T> ostream& operator<<(ostream &out, const vector<T> &a) { for(const T &x: a) out << x << ' '; return out; }
const int di[] = {1, 0, -1, 0, 1, 1, -1, -1, 0};
const int dj[] = {0, 1, 0, -1, -1, 1, 1, -1, 0};


struct PQ {
    ll p, q;
    PQ(const ll p_=0, const ll q_=1): p(p_), q(q_) { assert(q != 0); reduce(); };
    PQ(const PQ &f): p(f.p), q(f.q) {};
    void operator=(const PQ &other) { p = other.p; q = other.q; }
    bool operator==(const PQ &other) const { return p*other.q == other.p*q; }
    bool operator<(const PQ &other) const { return p*other.q < other.p*q; }
    bool operator<=(const PQ &other) const { return p*other.q <= other.p*q; }
    bool operator>(const PQ &other) const { return p*other.q > other.p*q; }
    bool operator>=(const PQ &other) const { return p*other.q >= other.p*q; }
    PQ &operator+=(const PQ &other) { ll tp = p*other.q + q*other.p; q *= other.q; p = tp; reduce(); return *this; }
    PQ &operator-=(const PQ &other) { ll tp = p*other.q - q*other.p; q *= other.q; p = tp; reduce(); return *this; }
    PQ &operator*=(const PQ &other) { p *= other.p, q *= other.q; reduce(); return *this; }
    PQ &operator/=(const PQ &other) { p *= other.q, q *= other.p; reduce(); return *this; }
    PQ operator+(const PQ &other) const { return PQ(*this) += other; }
    PQ operator-(const PQ &other) const { return PQ(*this) -= other; }
    PQ operator*(const PQ &other) const { return PQ(*this) *= other; }
    PQ operator/(const PQ &other) const { return PQ(*this) /= other; }
    PQ operator-() const { return PQ(*this) *= -1; }
    void reduce() { ll tmp = gcd(abs(p), abs(q)); p/=tmp, q/=tmp; if(q < 0) p *= -1, q *= -1; }
};

int main() {
    int n;
    cin >> n;
    vector<int> a(n);
    cin >> a;
    sort(all(a));
    PQ ans(0, 1);
    rep(i, n-1) chmax(ans, PQ(a[i], a[i+1]));
    cout << ans.p << " " << ans.q << endl;
    return 0;
}
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