結果

問題 No.793 うし数列 2
ユーザー FF256grhyFF256grhy
提出日時 2019-02-22 21:43:36
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 5,818 bytes
コンパイル時間 2,025 ms
コンパイル使用メモリ 182,716 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-11-25 06:40:25
合計ジャッジ時間 2,725 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
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 * 21
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 #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
typedef long long signed int LL;
typedef long long unsigned int LU;
#define incII(i, l, r) for(int i = (l) ; i <= (r); ++i)
#define incID(i, l, r) for(int i = (l) ; i < (r); ++i)
#define decII(i, l, r) for(int i = (r) ; i >= (l); --i)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); --i)
#define inc(i, n) incID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define dec(i, n) decID(i, 0, n)
#define dec1(i, n) decII(i, 1, n)
#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define inID(v, l, r) ((l) <= (v) && (v) < (r))
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define FI first
#define SE second
#define ALL(v) v.begin(), v.end()
#define RALL(v) v.rbegin(), v.rend()
template<typename T> bool setmin (T & a, T b) { if(b < a) { a = b; return true; } else { return false; } }
template<typename T> bool setmax (T & a, T b) { if(b > a) { a = b; return true; } else { return false; } }
template<typename T> bool setmineq(T & a, T b) { if(b <= a) { a = b; return true; } else { return false; } }
template<typename T> bool setmaxeq(T & a, T b) { if(b >= a) { a = b; return true; } else { return false; } }
LL mo(LL a, LL b) { assert(b > 0); a %= b; if(a < 0) { a += b; } return a; }
LL fl(LL a, LL b) { assert(b > 0); return (a > 0 ? a / b : (a - b + 1) / b); }
LL ce(LL a, LL b) { assert(b > 0); return (a < 0 ? a / b : (a + b - 1) / b); }
#define bit(b, i) (((b) >> (i)) & 1)
#define BC __builtin_popcountll
#define SC(T, v) static_cast<T>(v)
#define SI(v) SC(int, v.size())
#define SL(v) SC( LL, v.size())
#define RF(e, v) for(auto & e: v)
#define ei else if
#define UR assert(false)
// ---- ----
template<typename T, int N> struct Matrix {
vector<vector<T>> a;
Matrix(const vector<vector<T>> & v = { }) { init(v); }
void init(const vector<vector<T>> & v) {
a = vector<vector<T>>(N, vector<T>(N, 0));
assert(v.size() <= N);
inc(i, v.size()) { assert(v[i].size() <= N);
inc(j, v[i].size()) {
a[i][j] = v[i][j];
}
}
}
vector<T> & operator[](int i) { return a[i]; }
Matrix id() {
Matrix e;
inc(i, N) { e[i][i] = 1; }
return e;
}
Matrix tp() {
Matrix b;
inc(i, N) {
inc(j, N) {
b[j][i] = a[i][j];
}
}
return b;
}
Matrix & operator+=(const Matrix & b) {
inc(i, N) {
inc(j, N) {
a[i][j] += b.a[i][j];
}
}
return (*this);
}
Matrix & operator*=(T b) {
inc(i, N) {
inc(j, N) {
a[i][j] *= b;
}
}
return (*this);
}
Matrix & operator*=(const Matrix & b) {
Matrix c;
inc(i, N) {
inc(j, N) {
inc(k, N) {
c[i][j] += a[i][k] * b.a[k][j];
}
}
}
return (*this) = c;
}
Matrix & operator^=(LU b) {
Matrix t[64], c = id();
int D = 64;
inc(i, D) { if((b >> i) == 0) { D = i; break; } }
inc(i, D) { t[i] = (i == 0 ? (*this) : t[i - 1] * t[i - 1]); }
inc(i, D) { if((b >> i) & 1) { c *= t[i]; } }
return (*this) = c;
}
Matrix operator+(const Matrix & b) const { Matrix c = a; return c += b; }
Matrix operator*( T b) const { Matrix c = a; return c *= b; }
Matrix operator*(const Matrix & b) const { Matrix c = a; return c *= b; }
Matrix operator^( LU b) const { Matrix c = a; return c ^= b; }
};
template<typename T, int N> Matrix<T, N> operator*(T a, const Matrix<T, N> & b) { return b * a; }
template<typename T, int N> ostream & operator<<(ostream & os, const Matrix<T, N> & m) {
inc(i, N) {
inc(j, N) {
os << m.a[i][j] << " ";
} os << endl;
}
return os;
}
// ---- ----
template<LL M> class ModInt {
private:
LL v = 0;
public:
ModInt() { }
ModInt(LL vv) { setval(vv); }
ModInt & setval(LL vv) { v = vv % M; if(v < 0) { v += M; } return (*this); }
LL getval() const { return v; }
ModInt & operator+=(const ModInt & b) { return setval(v + b.v); }
ModInt & operator-=(const ModInt & b) { return setval(v - b.v); }
ModInt & operator*=(const ModInt & b) { return setval(v * b.v); }
ModInt & operator/=(const ModInt & b) { return setval(v * b.inv()); }
ModInt & operator^=( LU b) { return setval(ex(v, b)); }
ModInt operator+ ( ) const { return ModInt(+v); }
ModInt operator- ( ) const { return ModInt(-v); }
ModInt operator+ (const ModInt & b) const { return ModInt(v + b.v); }
ModInt operator- (const ModInt & b) const { return ModInt(v - b.v); }
ModInt operator* (const ModInt & b) const { return ModInt(v * b.v); }
ModInt operator/ (const ModInt & b) const { return ModInt(v * b.inv()); }
ModInt operator^ ( LU b) const { return ModInt(ex(v, b)); }
LL inv() const {
LL x = (ex_gcd(v, M).FI + M) % M;
assert(v * x % M == 1);
return x;
}
LL ex(LL a, LU b) const {
LL D = 64, x[64], y = 1;
inc(i, D) { if((b >> i) == 0) { D = i; break; } }
inc(i, D) { x[i] = (i == 0 ? a : x[i - 1] * x[i - 1]) % M; }
inc(i, D) { if((b >> i) & 1) { (y *= x[i]) %= M; } }
return y;
}
pair<LL, LL> ex_gcd(LL a, LL b) const {
if(b == 0) { return MP(1, 0); }
auto p = ex_gcd(b, a % b);
return MP(p.SE, p.FI - (a / b) * p.SE);
}
};
template<LL M> ModInt<M> operator+(LL a, const ModInt<M> & b) { return b + a; }
template<LL M> ModInt<M> operator-(LL a, const ModInt<M> & b) { return -b + a; }
template<LL M> ModInt<M> operator*(LL a, const ModInt<M> & b) { return b * a; }
template<LL M> ModInt<M> operator/(LL a, const ModInt<M> & b) { return a * b.inv(); }
template<LL M> istream & operator>>(istream & is, ModInt<M> & b) { LL v; is >> v; b.setval(v); return is; }
template<LL M> ostream & operator<<(ostream & os, const ModInt<M> & b) { return (os << b.getval()); }
// ---- ----
typedef Matrix<ModInt<1'000'000'007>, 2> MM;
int main() {
LL n;
cin >> n;
MM a = { { { 10, 0 }, { 1, 1 } } };
MM v = { { { 1, 3 } } };
cout << (v * (a ^ n))[0][0] << endl;
return 0;
}
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