結果

問題 No.1049 Zero (Exhaust)
ユーザー tsutajtsutaj
提出日時 2020-05-08 21:44:00
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 5,785 bytes
コンパイル時間 841 ms
コンパイル使用メモリ 92,568 KB
最終ジャッジ日時 2024-11-14 22:28:56
合計ジャッジ時間 1,375 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
main.cpp: In instantiation of 'struct FixedMatrix<ModInt<1000000007>, 2, 2>':
main.cpp:207:9:   required from here
main.cpp:114:16: error: 'FixedMatrix<T, h, w>::mat' has incomplete type
  114 |     array_type mat;
      |                ^~~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_map.h:63,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/map:61,
                 from main.cpp:14:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/tuple:1595:45: note: declaration of 'using array_type = struct std::array<ModInt<1000000007>, 4>' {aka 'struct std::array<ModInt<1000000007>, 4>'}
 1595 |   template<typename _Tp, size_t _Nm> struct array;
      |                                             ^~~~~

ソースコード

diff #
プレゼンテーションモードにする

// #define _GLIBCXX_DEBUG // for STL debug (optional)
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <string>
#include <cstring>
#include <deque>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <utility>
#include <algorithm>
#include <map>
#include <set>
#include <complex>
#include <cmath>
#include <limits>
#include <cfloat>
#include <climits>
#include <ctime>
#include <cassert>
#include <numeric>
#include <fstream>
#include <functional>
#include <bitset>
using namespace std;
using ll = long long int;
using int64 = long long int;
template<typename T> void chmax(T &a, T b) {a = max(a, b);}
template<typename T> void chmin(T &a, T b) {a = min(a, b);}
template<typename T> void chadd(T &a, T b) {a = a + b;}
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};
const int INF = 1LL << 29;
const ll LONGINF = 1LL << 60;
const ll MOD = 1000000007LL;
// ModInt begin
using ll = long long;
template<ll mod>
struct ModInt {
ll v;
ll mod_pow(ll x, ll n) const {
return (!n) ? 1 : (mod_pow((x*x)%mod,n/2) * ((n&1)?x:1)) % mod;
}
ModInt(ll a = 0) : v((a %= mod) < 0 ? a + mod : a) {}
ModInt operator+ ( const ModInt& b ) const {
return (v + b.v >= mod ? ModInt(v + b.v - mod) : ModInt(v + b.v));
}
ModInt operator- () const {
return ModInt(-v);
}
ModInt operator- ( const ModInt& b ) const {
return (v - b.v < 0 ? ModInt(v - b.v + mod) : ModInt(v - b.v));
}
ModInt operator* ( const ModInt& b ) const {return (v * b.v) % mod;}
ModInt operator/ ( const ModInt& b ) const {return (v * mod_pow(b.v, mod-2)) % mod;}
bool operator== ( const ModInt &b ) const {return v == b.v;}
bool operator!= ( const ModInt &b ) const {return !(*this == b); }
ModInt& operator+= ( const ModInt &b ) {
v += b.v;
if(v >= mod) v -= mod;
return *this;
}
ModInt& operator-= ( const ModInt &b ) {
v -= b.v;
if(v < 0) v += mod;
return *this;
}
ModInt& operator*= ( const ModInt &b ) {
(v *= b.v) %= mod;
return *this;
}
ModInt& operator/= ( const ModInt &b ) {
(v *= mod_pow(b.v, mod-2)) %= mod;
return *this;
}
ModInt pow(ll x) { return ModInt(mod_pow(v, x)); }
// operator int() const { return int(v); }
// operator long long int() const { return v; }
};
template<ll mod>
ModInt<mod> pow(ModInt<mod> n, ll k) {
return ModInt<mod>(n.mod_pow(n.v, k));
}
template<ll mod>
ostream& operator<< (ostream& out, ModInt<mod> a) {return out << a.v;}
template<ll mod>
istream& operator>> (istream& in, ModInt<mod>& a) {
in >> a.v;
return in;
}
// ModInt end
using mint = ModInt<MOD>;
//
// : (+=, -=), (-), (+, -, *, ==)
// eigen(N): N*N
// pow(mat, k): mat k
template <typename T, int h, int w>
struct FixedMatrix {
using array_type = array<T, h * w>;
array_type mat;
FixedMatrix(T val = T(0)) { mat.fill(val); }
const T& at(int i, int j) const { return mat[i*w + j]; }
T& at(int i, int j) { return mat[i*w + j]; }
FixedMatrix<T, h, w> &operator+=(const FixedMatrix<T, h, w>& rhs) {
for(size_t i=0; i<h; i++) {
for(size_t j=0; j<w; j++) {
this->at(i, j) += rhs.at(i, j);
}
}
return *this;
}
FixedMatrix<T, h, w> operator-() const {
FixedMatrix<T, h, w> res(*this);
for(size_t i=0; i<h; i++) {
for(size_t j=0; j<w; j++) {
res.at(i, j) *= T(-1);
}
}
return res;
}
FixedMatrix<T, h, w> &operator-=(const FixedMatrix<T, h, w>& rhs) {
return (FixedMatrix<T, h, w>(*this) += -rhs);
}
template <int wr>
FixedMatrix<T, h, wr> operator*(const FixedMatrix<T, w, wr>& rhs) {
size_t H = h, W = wr, C = w;
FixedMatrix<T, h, wr> res;
for(size_t i=0; i<H; i++) {
for(size_t j=0; j<W; j++) {
for(size_t k=0; k<C; k++) {
res.at(i, j) += this->at(i, k) * rhs.at(k, j);
}
}
}
return res;
}
FixedMatrix<T, h, w> operator+(const FixedMatrix<T, h, w>& rhs) {
return (FixedMatrix<T, h, w>(*this) += rhs);
}
FixedMatrix<T, h, w> operator-(const FixedMatrix<T, h, w> &rhs) {
return (FixedMatrix<T, h, w>(*this) -= rhs);
}
bool operator==(const FixedMatrix<T, h, w> &rhs) const {
return this->mat == rhs.mat;
}
bool operator!=(const FixedMatrix<T, h, w> &rhs) const {
return !(*this == rhs);
}
};
template <typename T, int h, int w>
FixedMatrix<T, h, w> eigen() {
FixedMatrix<T, h, w> res(0);
for(size_t i=0; i<h; i++) res.at(i, i) = T(1);
return res;
}
template <typename T, int h, int w>
FixedMatrix<T, h, w> pow(FixedMatrix<T, h, w> mat, long long int k) {
FixedMatrix<T, h, w> res = eigen<T, h, w>();
for(; k>0; k>>=1) {
if(k & 1) res = res * mat;
mat = mat * mat;
}
return res;
}
template <typename T, int h, int w>
ostream& operator<< (ostream& out, FixedMatrix<T, h, w> mat) {
int H = mat.h, W = mat.w;
out << "[" << endl;
for(int i=0; i<H; i++) {
out << " [ ";
for(int j=0; j<W; j++) out << mat.at(i, j) << " ";
out << "]" << endl;
}
out << "]" << endl;
return out;
}
using Mat = FixedMatrix<mint, 2, 2>;
int main() {
ll P, K; scanf("%lld%lld", &P, &K);
Mat mat;
mat.at(0, 0) = mint(P+1);
mat.at(0, 1) = mint(2);
mat.at(1, 0) = mint(P-1);
mat.at(1, 1) = mint(2*P - 2);
mat = pow(mat, K);
cout << mat.at(0, 0) << endl;
return 0;
}
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