結果
問題 | No.1050 Zero (Maximum) |
ユーザー | kya_ski |
提出日時 | 2020-05-21 23:25:38 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 25 ms / 2,000 ms |
コード長 | 4,413 bytes |
コンパイル時間 | 1,853 ms |
コンパイル使用メモリ | 174,168 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-10-02 09:14:35 |
合計ジャッジ時間 | 2,543 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 7 ms
6,816 KB |
testcase_03 | AC | 5 ms
6,816 KB |
testcase_04 | AC | 16 ms
6,816 KB |
testcase_05 | AC | 18 ms
6,820 KB |
testcase_06 | AC | 8 ms
6,816 KB |
testcase_07 | AC | 10 ms
6,820 KB |
testcase_08 | AC | 2 ms
6,816 KB |
testcase_09 | AC | 5 ms
6,820 KB |
testcase_10 | AC | 20 ms
6,816 KB |
testcase_11 | AC | 15 ms
6,816 KB |
testcase_12 | AC | 2 ms
6,816 KB |
testcase_13 | AC | 2 ms
6,816 KB |
testcase_14 | AC | 2 ms
6,820 KB |
testcase_15 | AC | 2 ms
6,816 KB |
testcase_16 | AC | 22 ms
6,820 KB |
testcase_17 | AC | 25 ms
6,816 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; template<int mod> struct ModInt { int x; ModInt() : x(0) {} ModInt(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if((x += mod-p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int)(1LL*x*p.x%mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while(b > 0) { t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } return ModInt(u); } ModInt pow(long long e){ long long a = 1, p = x; while(e > 0) { if (e & 1) {a = (a * p) % mod; e--;} else {p = (p * p) % mod; e /= 2;} } return ModInt(a); } friend ostream &operator<<(ostream &os, const ModInt<mod> &p) { return os << p.x; } friend istream &operator>>(istream &is, ModInt<mod> &a) { long long x; is >> x; a = ModInt<mod>(x); return (is); } }; template<class T> struct Matrix { private : vector<vector<T>> A; public : Matrix () { } Matrix (size_t n, size_t m) : A(n, vector<T>(m, 0)) { } Matrix (size_t n) : A(n, vector<T>(n, 0)) { }; Matrix (const vector<vector<T>> &B) { A = B; } size_t height() const { return (A.size()); } size_t width() const { return (A[0].size()); } inline const vector<T> &operator[] (int k) const { return (A.at(k)); } inline vector<T> &operator[] (int k) { return (A.at(k)); } static Matrix E(size_t n) { Matrix mat(n); for (int i = 0; i < n; i++) mat[i][i] = 1; return (mat); } Matrix &operator+= (const Matrix &B) { size_t n = height(), m = width(); assert(n == B.height() and m == B.width()); for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { (*this)[i][j] += B[i][j]; } } return (*this); } Matrix &operator-= (const Matrix &B) { size_t n = height(), m = width(); assert(n == B.height() and m == B.width()); for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { (*this)[i][j] -= B[i][j]; } } return (*this); } Matrix &operator*= (const Matrix &B) { size_t n = height(), m = B.width(), p = width(); assert(p == B.height()); vector<vector<T>> C(n, vector<T>(m, 0)); for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { for (int k = 0; k < p; k++) { C[i][j] = (C[i][j] + (*this)[i][k] * B[k][j]); } } } A.swap(C); return (*this); } Matrix &operator^= (long long k) { Matrix B = Matrix::E(height()); while (k > 0) { if (k&1) B *= (*this); (*this) *= (*this); k >>= 1LL; } A.swap(B.A); return (*this); } Matrix operator+ (const Matrix &B) const { return (Matrix(*this) += B); } Matrix operator- (const Matrix &B) const { return (Matrix(*this) -= B); } Matrix operator* (const Matrix &B) const { return (Matrix(*this) *= B); } Matrix operator^ (const long long k) const { return (Matrix(*this) ^= k); } }; constexpr int MOD = 1'000'000'007; int main() { int m, k; cin >> m >> k; Matrix<ModInt<MOD>> dp(m); for (int i = 0; i < m; i++) { for (int j = 0; j < m; j++) { dp[i][(i + j) % m] += 1; dp[i][(i * j) % m] += 1; } } dp ^= k; cout << dp[0][0] << '\n'; return 0; }