結果
問題 | No.1112 冥界の音楽 |
ユーザー | nrvft |
提出日時 | 2020-07-10 22:39:03 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,786 bytes |
コンパイル時間 | 2,273 ms |
コンパイル使用メモリ | 210,892 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-11 10:00:37 |
合計ジャッジ時間 | 3,378 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | WA | - |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | WA | - |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | WA | - |
testcase_07 | AC | 2 ms
6,820 KB |
testcase_08 | AC | 2 ms
6,816 KB |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
6,816 KB |
testcase_11 | WA | - |
testcase_12 | AC | 2 ms
6,816 KB |
testcase_13 | AC | 2 ms
6,816 KB |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 2 ms
6,816 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | AC | 2 ms
6,816 KB |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 2 ms
6,820 KB |
testcase_25 | AC | 1 ms
6,816 KB |
testcase_26 | AC | 2 ms
6,820 KB |
testcase_27 | AC | 2 ms
6,820 KB |
testcase_28 | WA | - |
testcase_29 | AC | 2 ms
6,816 KB |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | AC | 2 ms
6,820 KB |
testcase_34 | AC | 2 ms
6,816 KB |
testcase_35 | AC | 2 ms
6,816 KB |
testcase_36 | AC | 16 ms
6,816 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using vl = vector<ll>; template<class T> using vc = vector<T>; template<class T> using vvc = vector<vector<T>>; #define eb emplace_back #define all(x) (x).begin(), (x).end() #define rep(i, n) for (ll i = 0; i < (n); i++) #define repr(i, n) for (ll i = (n)-1; i >= 0; i--) #define repe(i, l, r) for (ll i = (l); i < (r); i++) #define reper(i, l, r) for (ll i = (r)-1; i >= (l); i--) #define repa(i,n) for (auto& i: n) template<class T> inline bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T> inline bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } void init() {cin.tie(0);ios::sync_with_stdio(false);cout << fixed << setprecision(15);} #ifdef DEBUG template <class T, class N> void verr(const T& a, const N& n) { rep(i, n) cerr << a[i] << " "; cerr << "\n" << flush; } ll dbgt = 1; void err() { cerr << "passed " << dbgt++ << "\n" << flush; } template<class H, class... T> void err(H&& h,T&&... t){ cerr<< h << (sizeof...(t)?" ":"\n") << flush; if(sizeof...(t)>0) err(forward<T>(t)...); } #endif const ll INF = 4e18; const ld EPS = 1e-11; const ld PI = acos(-1.0L); const ll MOD = 1e9 + 7; // const ll MOD = 998244353; //--------------------------------------------------------------------------------// // modint template<int MOD> struct Fp { long long val; constexpr Fp(long long v = 0) noexcept : val(v % MOD) { if (val < 0) val += MOD; } constexpr int getmod() { return MOD; } constexpr Fp operator - () const noexcept { return val ? MOD - val : 0; } constexpr Fp operator + (const Fp& r) const noexcept { return Fp(*this) += r; } constexpr Fp operator - (const Fp& r) const noexcept { return Fp(*this) -= r; } constexpr Fp operator * (const Fp& r) const noexcept { return Fp(*this) *= r; } constexpr Fp operator / (const Fp& r) const noexcept { return Fp(*this) /= r; } constexpr Fp& operator += (const Fp& r) noexcept { val += r.val; if (val >= MOD) val -= MOD; return *this; } constexpr Fp& operator -= (const Fp& r) noexcept { val -= r.val; if (val < 0) val += MOD; return *this; } constexpr Fp& operator *= (const Fp& r) noexcept { val = val * r.val % MOD; return *this; } constexpr Fp& operator /= (const Fp& r) noexcept { long long a = r.val, b = MOD, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } val = val * u % MOD; if (val < 0) val += MOD; return *this; } constexpr bool operator == (const Fp& r) const noexcept { return this->val == r.val; } constexpr bool operator != (const Fp& r) const noexcept { return this->val != r.val; } friend constexpr ostream& operator << (ostream &os, const Fp<MOD>& x) noexcept { return os << x.val; } friend constexpr Fp<MOD> modpow(const Fp<MOD> &a, long long n) noexcept { if (n == 0) return 1; auto t = modpow(a, n / 2, MOD); t = t * t; if (n & 1) t = t * a; return t; } }; using mint = Fp<MOD>; template <class T> struct Matrix { vector<vector<T>> mat; int row, col; Matrix(int r, int c, T v = 0) : mat(r, vector<T>(c, v)), row(r), col(c){}; inline const vector<T> &operator[](int k) const { return mat[k]; } inline vector<T> &operator[](int k) { return mat[k]; } Matrix &operator+=(const Matrix &A) { for (int i = 0; i < row; i++) for (int j = 0; j < col; j++) (*this)[i][j] += A[i][j]; return (*this); } Matrix &operator-=(const Matrix &A) { for (int i = 0; i < row; i++) for (int j = 0; j < col; j++) (*this)[i][j] -= A[i][j]; return (*this); } Matrix &operator*=(const Matrix &A) { vector<vector<T>> res(row, vector<T>(A.col, 0)); for (int i = 0; i < row; i++) for (int j = 0; j < A.col; j++) for (int k = 0; k < col; k++) res[i][j] += mat[i][k] * A[k][j]; mat.swap(res); (*this).col = A.col; return (*this); } Matrix &operator^=(long long p) { Matrix res = Matrix(row, col); for (int i = 0; i < row; i++) res[i][i] = 1; while(p > 0){ if (p & 1) res *= *this; *this *= *this; p >>= 1; } mat.swap(res.mat); 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); } friend ostream &operator<<(ostream &os, Matrix &p) { for (int i = 0; i < p.row; i++) { os << "["; for (int j = 0; j < p.col; j++) { os << p[i][j] << (j + 1 == p.col ? "]\n" : ","); } } return (os); } }; int main() { init(); ll K, M, N; cin >> K >> M >> N; vc<array<ll, 3>> A(M); rep(i, M) cin >> A[i][0] >> A[i][1] >> A[i][2], A[i][0]--, A[i][1]--, A[i][2]--; ll K2 = K * K; Matrix<mint> P(K2, K2), C(K2, 1); rep(i, M) if(A[i][0]==0) C[A[i][1] * K + A[i][2]][0] += 1; rep(i, M) { P[A[i][1] * K + A[i][2]][A[i][0] * K + A[i][1]] += 1; } // err(P); P ^= N - 2; // err(P); C = P * C; mint ans = 0; rep(i, K2) if (i % K2 == 0) ans += C[i][0]; cout << ans << endl; }