#433752 (C++11) No.997 Jumping Kangaroo

• 問題: No.997 Jumping Kangaroo
• ユーザー: Chanyuh
• 提出日時: 2020-02-23 17:01:59
• 言語: C++11 (gcc 11.4.0)
• 結果: WA
• 実行時間: -
• コード長: 5,120 bytes
• コンパイル時間: 993 ms
• コンパイル使用メモリ: 105,800 KB
• 実行使用メモリ: 6,820 KB
• 最終ジャッジ日時: 2024-10-10 03:57:09
• 合計ジャッジ時間: 1,936 ms
• ジャッジサーバーID （参考情報）: judge1 / judge5

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 6,820 KB
testcase_01	AC	2 ms; 6,816 KB
testcase_02	AC	2 ms; 6,820 KB
testcase_03	AC	2 ms; 6,820 KB
testcase_04	AC	1 ms; 6,816 KB
testcase_05	AC	2 ms; 6,820 KB
testcase_06	AC	1 ms; 6,820 KB
testcase_07	AC	2 ms; 6,816 KB
testcase_08	AC	2 ms; 6,816 KB
testcase_09	AC	2 ms; 6,816 KB
testcase_10	AC	1 ms; 6,816 KB
testcase_11	AC	1 ms; 6,820 KB
testcase_12	AC	2 ms; 6,816 KB
testcase_13	AC	1 ms; 6,820 KB
testcase_14	AC	2 ms; 6,816 KB
testcase_15	AC	2 ms; 6,816 KB
testcase_16	AC	2 ms; 6,816 KB
testcase_17	AC	2 ms; 6,820 KB
testcase_18	AC	2 ms; 6,820 KB
testcase_19	AC	2 ms; 6,820 KB
testcase_20	AC	1 ms; 6,816 KB
testcase_21	AC	2 ms; 6,816 KB
testcase_22	WA	-
testcase_23	WA	-
testcase_24	AC	2 ms; 6,820 KB
testcase_25	AC	2 ms; 6,816 KB
testcase_26	AC	2 ms; 6,816 KB
testcase_27	AC	2 ms; 6,816 KB

ソースコード

#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<complex>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<utility>
#include<tuple>
#include<array>
using namespace std;
typedef long long ll;
typedef unsigned int ui;
const ll mod = 1000000007;
const ll INF = (ll)1000000007 * 1000000007;
typedef pair<int, int> P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define Per(i,sta,n) for(int i=n-1;i>=sta;i--)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
typedef long double ld;
typedef complex<ld> Point;
const ld eps = 1e-8;
const ld pi = acos(-1.0);
typedef pair<ll, ll> LP;

template<int mod>
struct ModInt {
    long long x;
 
    ModInt() : x(0) {}
    ModInt(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}

    explicit operator int() const {return x;}
 
    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;
    }

    static ModInt add_identity(){return ModInt(0);}
    static ModInt mul_identity(){return ModInt(1);}
 
    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;
            a -= t * b;
            swap(a, b);
            u -= t * v;
            swap(u, v);
        }
        return ModInt(u);
    }

    ModInt power(long long p) const{
        int a = x;
        if (p==0) return 1;
        if (p==1) return ModInt(a);
        if (p%2==1) return (ModInt(a)*ModInt(a)).power(p/2)*ModInt(a);
        else return (ModInt(a)*ModInt(a)).power(p/2);
    }

    ModInt power(const ModInt p) const{
        return ((ModInt)x).power(p.x);
    }

    friend ostream &operator<<(ostream &os, const ModInt<mod> &p) {
        return os << p.x;
    }
    friend istream &operator>>(istream &is, ModInt<mod> &a) {
        long long x;
        is >> x;
        a = ModInt<mod>(x);
        return (is);
    }
};

using modint = ModInt<mod>;

int n,w,a[45];
ll k;

template<typename R, size_t N>
struct SquareMatrix{
  typedef array<R, N> arr;
  typedef array<arr, N> mat;
  mat dat;

  SquareMatrix(){
    for(size_t i=0;i<N;i++)
      for(size_t j=0;j<N;j++)
        dat[i][j]=R::add_identity();
  }

  bool operator==(const SquareMatrix& a) const{
    return dat==a.dat;
  }

  size_t size() const{return N;}
  arr& operator[](size_t k){return dat[k];}
  const arr& operator[](size_t k) const {return dat[k];}

  static SquareMatrix add_identity(){return SquareMatrix();}
  static SquareMatrix mul_identity(){
    SquareMatrix res;
    for(size_t i=0;i<N;i++) res[i][i]=R::mul_identity();
    return res;
  }

  SquareMatrix operator*(const SquareMatrix &B) const{
    SquareMatrix res;
    for(size_t i=0;i<N;i++)
      for(size_t j=0;j<N;j++)
        for(size_t k=0;k<N;k++)
          res[i][j]=res[i][j]+(dat[i][k]*B[k][j]);
    return res;
  }

  SquareMatrix operator+(const SquareMatrix &B) const{
    SquareMatrix res;
    for(size_t i=0;i<N;i++)
      for(size_t j=0;j<N;j++)
        res[i][j]=dat[i][j]+B[i][j];
    return res;
  }

  SquareMatrix pow(long long n) const{
    SquareMatrix a=*this,res=mul_identity();
    while(n){
      if(n&1) res=res*a;
      a=a*a;
      n>>=1;
    }
    return res;
  }
};


modint dp(int m,int ban=-1){
  vector<modint> v(m+1,0);
  v[0]=1;
  Rep(i,0,m+1){
    rep(j,n){
      if(i+a[j]==ban) continue;
      if(i+a[j]<=m){
        v[i+a[j]]+=v[i];
      }
    }
  }
  return v[m];
}

void solve(){
  cin >> n >> w >> k;
  rep(i,n){
    cin >> a[i];
  }
  modint p=dp(w);
  modint q=dp(2*w,w);
  using SM = SquareMatrix<modint, 2>;
  SM A;
  
  A[0][0]=p;A[0][1]=q;A[1][0]=(modint)1;
  
  rep(i,2){
    rep(j,2){
      //cout << A[i][j] << " ";
    }
    //cout << "" << endl;
  }
  A=A.pow(k);
  rep(i,2){
    rep(j,2){
      //cout << A[i][j] << " ";
    }
    //cout << "" << endl;
  }
  cout << A[0][0] << endl;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << fixed << setprecision(50);
    solve();
}