#361397 (C++14) No.502 階乗を計算するだけ

• 問題: No.502 階乗を計算するだけ
• ユーザー: yna
• 提出日時: 2019-07-23 20:23:05
• 言語: C++14 (gcc 12.3.0 + boost 1.83.0)
• 結果: MLE
• 実行時間: -
• コード長: 4,664 bytes
• コンパイル時間: 1,738 ms
• コンパイル使用メモリ: 171,716 KB
• 実行使用メモリ: 813,360 KB
• 最終ジャッジ日時: 2024-06-26 08:23:11
• 合計ジャッジ時間: 4,466 ms
• ジャッジサーバーID （参考情報）: judge4 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,376 KB
testcase_02	AC	2 ms; 5,376 KB
testcase_03	AC	2 ms; 5,376 KB
testcase_04	AC	2 ms; 5,376 KB
testcase_05	AC	2 ms; 5,376 KB
testcase_06	AC	2 ms; 5,376 KB
testcase_07	AC	2 ms; 5,376 KB
testcase_08	AC	2 ms; 5,376 KB
testcase_09	AC	2 ms; 5,376 KB
testcase_10	AC	2 ms; 5,376 KB
testcase_11	AC	2 ms; 5,376 KB
testcase_12	AC	2 ms; 5,376 KB
testcase_13	AC	2 ms; 5,376 KB
testcase_14	AC	2 ms; 5,376 KB
testcase_15	AC	2 ms; 5,376 KB
testcase_16	AC	2 ms; 5,376 KB
testcase_17	AC	2 ms; 5,376 KB
testcase_18	AC	2 ms; 5,376 KB
testcase_19	AC	2 ms; 5,376 KB
testcase_20	AC	2 ms; 5,376 KB
testcase_21	AC	2 ms; 5,376 KB
testcase_22	AC	17 ms; 10,624 KB
testcase_23	AC	7 ms; 5,376 KB
testcase_24	AC	13 ms; 8,064 KB
testcase_25	AC	3 ms; 5,376 KB
testcase_26	AC	8 ms; 6,016 KB
testcase_27	AC	5 ms; 5,376 KB
testcase_28	AC	7 ms; 5,632 KB
testcase_29	AC	4 ms; 5,376 KB
testcase_30	AC	16 ms; 9,984 KB
testcase_31	AC	10 ms; 6,656 KB
testcase_32	MLE	-
testcase_33	--	-
testcase_34	--	-
testcase_35	--	-
testcase_36	--	-
testcase_37	--	-
testcase_38	--	-
testcase_39	--	-
testcase_40	--	-
testcase_41	--	-
testcase_42	--	-
testcase_43	--	-
testcase_44	--	-
testcase_45	--	-
testcase_46	--	-
testcase_47	--	-
testcase_48	--	-
testcase_49	--	-
testcase_50	--	-
testcase_51	--	-

ソースコード

#include <bits/stdc++.h>
#define debug(x) cerr << #x << ": " << x << '\n';
using namespace std;
using ll = long long;
using P = pair<int, int>;
const int INF = (int)1e9;
const int MOD = (int)1e9 + 7;

#ifndef MOD_INT
#define MOD_INT
template<int mod>
struct ModInt{
  int x;

  ModInt() : x(0){}
  ModInt(int64_t 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-() 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;}
  bool operator==(const ModInt &p) const {return x == p.x;}
  bool operator!=(const ModInt &p) const {return x != p.x;}

  ModInt inverse() const {
    int a = x, b = mod, u = 1, v = 0, t;
    while(b > 0) {
      t = a / b;
      swap(a -= t * b, b);
      swap(u -= t * v, v);
    }
    return ModInt(u);
  }

  ModInt pow(int64_t n) const {
    ModInt ret(1), mul(x);
    while(n > 0) {
      if(n & 1) ret *= mul;
      mul *= mul;
      n >>= 1;
    }
    return ret;
  }

  friend ostream &operator<<(ostream &os, const ModInt &p){
    return os << p.x;
  }

  friend istream &operator>>(istream &is, ModInt &a){
    int64_t t;
    is >> t;
    a = ModInt< mod >(t);
    return (is);
  }

  static int get_mod(){return mod;}
};

using mint = ModInt<MOD>;
#endif
#ifndef MOD_INT
#define MOD_INT
template<int mod>
struct ModInt{
  int x;

  ModInt() : x(0){}
  ModInt(int64_t 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-() 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;}
  bool operator==(const ModInt &p) const {return x == p.x;}
  bool operator!=(const ModInt &p) const {return x != p.x;}

  ModInt inverse() const {
    int a = x, b = mod, u = 1, v = 0, t;
    while(b > 0) {
      t = a / b;
      swap(a -= t * b, b);
      swap(u -= t * v, v);
    }
    return ModInt(u);
  }

  ModInt pow(int64_t n) const {
    ModInt ret(1), mul(x);
    while(n > 0) {
      if(n & 1) ret *= mul;
      mul *= mul;
      n >>= 1;
    }
    return ret;
  }

  friend ostream &operator<<(ostream &os, const ModInt &p){
    return os << p.x;
  }

  friend istream &operator>>(istream &is, ModInt &a){
    int64_t t;
    is >> t;
    a = ModInt< mod >(t);
    return (is);
  }

  static int get_mod(){return mod;}
};

using mint = ModInt<MOD>;
#endif

class Factorial{
    private:
        int max;
        vector<mint> fact, ifact;

    public:
        Factorial(int N):max(N), fact(N+1), ifact(N+1){
            fact[0] = 1;
            for(int i = 1; i <= N; i++) fact[i] = fact[i-1] * i;
            ifact[N] = fact[N].inverse();
            for(int i = N; i >= 1; i--) ifact[i-1] = ifact[i] * i;
        }

        void resize(int n){
            if(n > max){
                fact.resize(n);
                ifact.resize(n);
                for(int i = max + 1; i <= n; i++) fact[i] = fact[i-1] * i;
                ifact[n] = fact[n].inverse();
                for(int i = n; i >= max + 1; i--) ifact[i-1] = ifact[i] * i;
                max = n;
            }
        }

        mint operator()(int n){
            if(n > max) this -> resize(n);

            return fact[n];
        }

        mint inverse(int n){
            if(n > max) this -> resize(n);

            return ifact[n];
        }
};

int main(void){
    ll n;
    cin >> n;

    mint res;
    if(n >= MOD){
        res = 0;
    }else{
        Factorial fact(n);
        res = fact(n);
    }

    cout << res << '\n';

    return 0;
}