結果
問題 | No.1073 無限すごろく |
ユーザー |
|
提出日時 | 2020-06-06 00:52:09 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 5,704 bytes |
コンパイル時間 | 2,426 ms |
コンパイル使用メモリ | 185,372 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-17 21:13:34 |
合計ジャッジ時間 | 3,586 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 30 |
ソースコード
/*∫ ∫ ∫ノヽ(_ )(_ )(______ )ヽ(´・ω・)ノ| /UU*/#pragma region macro#include <bits/stdc++.h>typedef long long int64;using namespace std;typedef vector<int> vi;const int MOD = (int)1e9 + 7;const int64 INF = 1LL << 62;const int inf = 1<<30;const char bn = '\n';template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }#define REP(i, n) for (int i = 0; i < (n); i++)#define FOR(i,s,n) for (int i = s; i < (n); i++)#define ALL(obj) (obj).begin(), (obj).end() //コンテナじゃないと使えない!!#define debug(x) cerr << #x << ": " << x << "\n";#define mp make_pairtemplate <typename T>ostream& operator<<(ostream& os, const vector<T> &V){int N = V.size();REP(i,N){os << V[i];if (i!=N-1) os << " ";}os << "\n";return os;}template <typename T,typename S>ostream& operator<<(ostream& os, pair<T,S> const&P){os << "(";os << P.first;os << " , ";os << P.second;os << ")";return os;}template <typename T,typename S,typename U>ostream& operator<<(ostream& os, tuple<T,S,U> const& P){os << "(";os << get<0>(P);os << ", ";os << get<1>(P);os << ", ";os << get<2>(P);os << ")";return os;}template <typename T>ostream& operator<<(ostream& os, set<T> &S){auto it=S.begin();while(it!=S.end()){os << *it;os << " ";it++;}os << "\n";return os;}template <typename T>ostream& operator<<(ostream& os, deque<T> &q){for(auto it=q.begin();it<q.end();it++){os<<*it;os<<" ";}os<<endl;return os;}template <typename T,typename S>ostream& operator<<(ostream& os, map<T,S> const&M){for(auto e:M){os<<e;}os<<endl;return os;}vector<pair<int,int>> dxdy = {mp(0,1),mp(1,0),mp(-1,0),mp(0,-1)};#pragma endregion//fixed<<setprecision(10)<<ans<<endl;template <typename T>struct Matrix{vector<vector<T>> matrix_data;Matrix(){}Matrix(const vector<vector<T>>& matrix_data):matrix_data(matrix_data){}//単位行列Matrix<T> Identity(size_t N){vector<vector<T>> res(N,vector<T>(N,0));for(size_t i=0; i<N; i++) res[i][i]=1;return Matrix<T>(res);}//累乗O(N^3 log k)Matrix<T> power(int64 k){Matrix<T> res = Matrix::Identity(matrix_data.size());Matrix<T> tmp = *this;while(k){if(k&1){res *= tmp;}tmp *= tmp;k >>= 1LL;}return res;}//T det(){}//Matrix<T> inv(){} 逆行列求めるやつあっても面白いね。正則(⇔det(A)!=0)じゃないといけないけど。};template <typename T>Matrix<T> operator*(const Matrix<T>& mat_a, const Matrix<T>& mat_b){size_t A = mat_a.matrix_data.size();size_t B = mat_b.matrix_data.size();assert(B > 0);size_t C = mat_b.matrix_data[0].size();Matrix<T> res(vector<vector<T>>(A,vector<T>(C,0)));for(size_t i=0; i<A; i++){assert(mat_a.matrix_data[i].size() == B);for(size_t j=0; j<B; j++){for(size_t k=0; k<C; k++){res.matrix_data[i][j] += mat_a.matrix_data[i][k] * mat_b.matrix_data[k][j];}}}return res;}template <typename T>Matrix<T>& operator*=(Matrix<T>& mat_a, Matrix<T>& mat_b){mat_a = mat_a*mat_b;return mat_a;}template <typename T>ostream& operator<<(ostream& os, const Matrix<T>& M){os << M.matrix_data;return os;}int64 pow(int a,int b,int mod){vector<bool> bit;for(b=b;b>0;b>>=1){bit.push_back(b&1);}vector<int64> fac(bit.size()); fac[0] = a;int64 res = 1;for(int i=1;i<bit.size();i++){fac[i] = (fac[i-1] * fac[i-1])%mod;}for(int i=0;i<bit.size();i++){if(bit[i]) res*=fac[i];res%=mod;}return res;}//mintstruct mint {int64 x;mint(int64 x=0):x((x+2*MOD)%MOD){}mint& operator+=(const mint a) {if ((x += a.x) >= MOD) x -= MOD;return *this;}mint& operator-=(const mint a) {if ((x += MOD-a.x) >= MOD) x -= MOD;return *this;}mint& operator*=(const mint a) {(x *= a.x) %= MOD;return *this;}mint operator+(const mint a) const {mint res(*this);return res+=a;}mint operator-(const mint a) const {mint res(*this);return res-=a;}mint operator*(const mint a) const {mint res(*this);return res*=a;}mint pow(int64 t) const {if (!t) return 1;mint a = pow(t>>1);a *= a;if (t&1) a *= *this;return a;}// for prime MODmint inv() const {return pow(MOD-2);}mint& operator/=(const mint a) {return (*this) *= a.inv();}mint operator/(const mint a) const {mint res(*this);return res/=a;}};ostream& operator<<(ostream& os, mint a){os << a.x;return os;}int main(){cin.tie(nullptr);ios::sync_with_stdio(false);int64 N; cin >> N;vector<vector<mint>> A = {vector<mint>(6,mint(1)/6),{1,0,0,0,0,0},{0,1,0,0,0,0},{0,0,1,0,0,0},{0,0,0,1,0,0},{0,0,0,0,1,0},};Matrix<mint> B(A);Matrix<mint> V({{1,0,0,0,0,0}});auto VB = V*B.power(N);mint ans = VB.matrix_data[0][0];cout << ans << endl;}