結果

問題 No.1049 Zero (Exhaust)
ユーザー kcvlexkcvlex
提出日時 2020-05-08 21:58:09
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 4 ms / 2,000 ms
コード長 5,488 bytes
コンパイル時間 1,887 ms
コンパイル使用メモリ 148,536 KB
最終ジャッジ日時 2025-01-10 08:40:22
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
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 22
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 <limits>
#include <initializer_list>
#include <utility>
#include <bitset>
#include <tuple>
#include <type_traits>
#include <functional>
#include <string>
#include <array>
#include <deque>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <iterator>
#include <algorithm>
#include <complex>
#include <random>
#include <numeric>
#include <iostream>
#include <iomanip>
#include <sstream>
#include <regex>
#include <cassert>
#include <cstddef>
#include <variant>
#define endl codeforces
#define ALL(v) std::begin(v), std::end(v)
#define ALLR(v) std::rbegin(v), std::rend(v)
using ll = std::int64_t;
using ull = std::uint64_t;
using pii = std::pair<int, int>;
using tii = std::tuple<int, int, int>;
using pll = std::pair<ll, ll>;
using tll = std::tuple<ll, ll, ll>;
template <typename T> using vec = std::vector<T>;
template <typename T> using vvec = vec<vec<T>>;
template <typename T> const T& var_min(const T &t) { return t; }
template <typename T> const T& var_max(const T &t) { return t; }
template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return std::min(t, var_min(tail...)); }
template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return std::max(t, var_max(tail...)); }
template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }
template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }
template <typename T> T make_v(T init) { return init; }
template <typename T, typename... Tail> auto make_v(T init, std::size_t s, Tail... tail) { auto v = std::move(make_v(init, tail...)); return vec
    <decltype(v)>(s, v); }
template <typename T, std::size_t Head, std::size_t... Tail> struct multi_dem_array { using type = std::array<typename multi_dem_array<T, Tail
    ...>::type, Head>; };
template <typename T, std::size_t Head> struct multi_dem_array<T, Head> { using type = std::array<T, Head>; };
template <typename T, std::size_t... Args> using mdarray = typename multi_dem_array<T, Args...>::type;
namespace init__ { struct InitIO { InitIO() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << std::fixed << std
    ::setprecision(30); } } init_io; }
namespace math {
template <typename T>
constexpr T pow(const T &n, ll k) {
T ret = n.mul_id_ele();
T cur = n;
while (k) {
if (k & 1) ret *= cur;
cur *= cur;
k /= 2;
}
return ret;
}
}
namespace math {
template <ll Mod>
struct Modint {
constexpr Modint(ll x) noexcept : x((Mod + x % Mod) % Mod) { }
constexpr Modint() noexcept : Modint(0) { }
constexpr Modint<Mod> add_id_ele() const noexcept {
return Modint<Mod>(0);
}
constexpr Modint<Mod> mul_id_ele() const noexcept {
return Modint<Mod>(1);
}
constexpr ll& value() noexcept {
return x;
}
constexpr ll value() const noexcept {
return x;
}
constexpr Modint& operator +=(const Modint &oth) noexcept {
x += oth.value();
if (Mod <= x) x -= Mod;
return *this;
}
constexpr Modint& operator -=(const Modint &oth) noexcept {
x += Mod - oth.value();
if (Mod <= x) x -= Mod;
return *this;
}
constexpr Modint& operator *=(const Modint &oth) noexcept {
x *= oth.value();
x %= Mod;
return *this;
}
constexpr Modint& operator /=(const Modint &oth) noexcept {
x *= oth.inv();
x %= Mod;
return *this;
}
constexpr Modint operator +(const Modint &oth) const noexcept {
return Modint(x) += oth;
}
constexpr Modint operator -(const Modint &oth) const noexcept {
return Modint(x) -= oth;
}
constexpr Modint operator *(const Modint &oth) const noexcept {
return Modint(x) *= oth;
}
constexpr Modint operator /(const Modint &oth) const noexcept {
return Modint(x) /= oth;
}
constexpr Modint operator -() const noexcept {
return Modint((x != 0) * (Mod - x));
}
template <typename T>
constexpr typename std::enable_if<std::is_integral<T>::value, const Modint&>::type
operator =(T t) noexcept {
(*this) = Modint(std::forward<T>(t));
return *this;
}
constexpr Modint inv() const noexcept {
return ::math::pow(*this, Mod - 2);
}
constexpr ll mod() const noexcept {
return Mod;
}
private:
ll x;
};
}
const ll mod = 1e9 + 7;
using mint = math::Modint<mod>;
using matrix = mdarray<mint, 2, 2>;
const matrix id_m = {{
{{ 1, 0, }},
{{ 0, 1, }},
}};
matrix mul(const matrix &a, const matrix &b) {
matrix ret;
std::fill(ALL(ret[0]), 0);
std::fill(ALL(ret[1]), 0);
for (int i = 0; i < 2; i++) for (int j = 0; j < 2; j++) for (int k = 0; k < 2; k++) ret[i][k] += a[i][j] * b[j][k];
return ret;
}
matrix pow_mat(const matrix &m, ll k) {
matrix ret = id_m, cur = m;
while (k) {
if (k & 1) ret = mul(ret, cur);
cur = mul(cur, cur);
k /= 2;
}
return ret;
}
int main() {
ll p, k;
std::cin >> p >> k;
matrix mat = {{
{{ p - 1 + p - 1, p - 1, }},
{{ 2 , p + 1, }},
}};
auto powm = pow_mat(mat, k);
std::cout << powm[1][1].value() << "\n";
return 0;
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0