#479283 (C++17) No.1049 Zero (Exhaust)

• 問題: No.1049 Zero (Exhaust)
• ユーザー: first_vil
• 提出日時: 2020-05-08 23:51:24
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 2 ms / 2,000 ms
• コード長: 3,629 bytes
• コンパイル時間: 2,255 ms
• コンパイル使用メモリ: 214,124 KB
• 実行使用メモリ: 6,944 KB
• 最終ジャッジ日時: 2024-07-04 01:18:23
• 合計ジャッジ時間: 3,010 ms
• ジャッジサーバーID （参考情報）: judge3 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 6,812 KB
testcase_01	AC	2 ms; 6,816 KB
testcase_02	AC	1 ms; 6,944 KB
testcase_03	AC	1 ms; 6,944 KB
testcase_04	AC	2 ms; 6,940 KB
testcase_05	AC	2 ms; 6,944 KB
testcase_06	AC	2 ms; 6,944 KB
testcase_07	AC	1 ms; 6,944 KB
testcase_08	AC	2 ms; 6,944 KB
testcase_09	AC	2 ms; 6,944 KB
testcase_10	AC	1 ms; 6,944 KB
testcase_11	AC	2 ms; 6,944 KB
testcase_12	AC	1 ms; 6,944 KB
testcase_13	AC	1 ms; 6,940 KB
testcase_14	AC	1 ms; 6,940 KB
testcase_15	AC	2 ms; 6,940 KB
testcase_16	AC	2 ms; 6,940 KB
testcase_17	AC	2 ms; 6,940 KB
testcase_18	AC	2 ms; 6,940 KB
testcase_19	AC	1 ms; 6,940 KB
testcase_20	AC	2 ms; 6,940 KB
testcase_21	AC	2 ms; 6,940 KB
testcase_22	AC	2 ms; 6,940 KB
testcase_23	AC	2 ms; 6,940 KB
testcase_24	AC	2 ms; 6,940 KB

ソースコード

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using VI = vector<int>;
using VL = vector<ll>;
using VS = vector<string>;
template<class T> using PQ = priority_queue<T, vector<T>, greater<T>>;
#define FOR(i,a,n) for(int (i)=(a);(i)<(n);++(i))
#define eFOR(i,a,n) for(int (i)=(a);(i)<=(n);++(i))
#define rFOR(i,a,n) for(int (i)=(n)-1;(i)>=(a);--(i))
#define erFOR(i,a,n) for(int (i)=(n);(i)>=(a);--(i))
#define each(i, a) for(auto &i : a)
#define SORT(i) sort((i).begin(),(i).end())
#define rSORT(i,a) sort((i).begin(),(i).end(),(a))
#define all(i) (i).begin(),(i).end()
#define out(y,x) ((y) < 0 || h <= (y) || (x) < 0 || w <= (x))
#define line cout << "-----------------------------\n" 
#define ENDL(i,n) ((i) == (n) - 1 ? "\n" : " ")
#define stop system("pause")
constexpr ll INF = 1000000000;
constexpr ll LLINF = 1LL << 60;
constexpr ll mod = 1000000007;
constexpr ll MOD = 998244353;
constexpr ld eps = 1e-10;
constexpr ld pi = 3.1415926535897932;
template<class T>inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; }return false; }
template<class T>inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; }return false; }
inline void init() { cin.tie(nullptr); cout.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); }
template<class T>inline istream& operator>>(istream& is, vector<T>& v) { for (auto& a : v)is >> a; return is; }
template<class T, class U>inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }
template<class T>inline vector<T> vec(size_t a) { return vector<T>(a); }
template<class T>inline vector<T> defvec(T def, size_t a) { return vector<T>(a, def); }
template<class T, class... Ts>inline auto vec(size_t a, Ts... ts) { return vector<decltype(vec<T>(ts...))>(a, vec<T>(ts...)); }
template<class T, class... Ts>inline auto defvec(T def, size_t a, Ts... ts) { return vector<decltype(defvec<T>(def, ts...))>(a, defvec<T>(def, ts...)); }
inline void print() { cout << "\n"; }
template<class T, class... Ts>inline void print(const T& a, const Ts&... ts) { cout << a << " "; print(ts...); }
template<class T>inline void print(const vector<T>& v) { for (int i = 0; i < v.size(); ++i)cout << v[i] << (i == v.size() - 1 ? "\n" : " "); }
template<class T>inline void print(const vector<vector<T>>& v) { for (auto& a : v)print(a); }

struct matrix {
    int n, m;
    vector<vector<ll>> dat;
    matrix(const vector<vector<ll>>& _a) : dat(_a) {
        n = dat.size(), m = dat.front().size();
    }
    matrix(const int& _n, const int& _m) : n(_n), m(_m) {
        dat = vec<ll>(n, m);
    }
    matrix() {}

    matrix operator*=(const matrix& a) {
        assert(m == a.n);
        matrix ret = matrix(vec<ll>(n, a.m));
        FOR(i, 0, n)FOR(j, 0, a.m)FOR(k, 0, m) {
            (ret[i][j] += dat[i][k] * a.dat[k][j] % mod) %= mod;
        }
        return *this = ret;
    }
    matrix operator*(const matrix& a) { return matrix(*this) *= a; }

    matrix pow(ll k) const {
        assert(n == m);
        matrix ret = matrix(vec<ll>(n, n)), a = matrix(dat);
        FOR(i, 0, n)ret[i][i] = 1;
        for (; 0 < k; k >>= 1) {
            if (k & 1)ret = ret * a;
            a = a * a;
        }
        return matrix(ret);
    }

    ll sum() const {
        ll ret = 0;
        FOR(i, 0, n)FOR(j, 0, m)(ret += dat[i][j]) %= mod;
        return ret;
    }

    vector<ll>& operator[](int i) { return dat[i]; }
};

int main() {
    init();

    int p, k; cin >> p >> k;
    print((matrix({ {1,0},{0,0} }) * matrix({ {p + 1,p - 1},{2,2 * (p - 1) % mod } }).pow(k))[0][0]);
}