#580733 (C++17) No.840 ほむほむほむら

提出ソース

結果

問題	No.840 ほむほむほむら
ユーザー	minato
提出日時	2020-11-17 04:49:21
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	160 ms / 4,000 ms
コード長	10,226 bytes
コンパイル時間	3,713 ms
コンパイル使用メモリ	234,204 KB
実行使用メモリ	6,944 KB
最終ジャッジ日時	2024-07-23 01:54:26
合計ジャッジ時間	5,667 ms
ジャッジサーバーID （参考情報）	judge1 / judge5

このコードへのチャレンジ
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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	3 ms 6,812 KB
testcase_01	AC	3 ms 6,940 KB
testcase_02	AC	5 ms 6,944 KB
testcase_03	AC	23 ms 6,944 KB
testcase_04	AC	2 ms 6,940 KB
testcase_05	AC	2 ms 6,940 KB
testcase_06	AC	3 ms 6,940 KB
testcase_07	AC	9 ms 6,940 KB
testcase_08	AC	41 ms 6,940 KB
testcase_09	AC	3 ms 6,944 KB
testcase_10	AC	3 ms 6,944 KB
testcase_11	AC	5 ms 6,944 KB
testcase_12	AC	13 ms 6,944 KB
testcase_13	AC	104 ms 6,940 KB
testcase_14	AC	16 ms 6,940 KB
testcase_15	AC	4 ms 6,940 KB
testcase_16	AC	6 ms 6,944 KB
testcase_17	AC	28 ms 6,940 KB
testcase_18	AC	130 ms 6,944 KB
testcase_19	AC	160 ms 6,944 KB
testcase_20	AC	2 ms 6,940 KB
testcase_21	AC	3 ms 6,944 KB
testcase_22	AC	4 ms 6,940 KB
testcase_23	AC	152 ms 6,944 KB
testcase_24	AC	6 ms 6,944 KB
testcase_25	AC	2 ms 6,940 KB
testcase_26	AC	5 ms 6,940 KB
testcase_27	AC	155 ms 6,944 KB

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

raw source code

#ifdef ONLINE_JUDGE
#pragma GCC target("avx2,avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#endif
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using i128 = __int128_t;
using pii = pair<int, int>;
using pll = pair<long long, long long>;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--)
#define all(x) (x).begin(), (x).end()
constexpr char ln = '\n';
istream& operator>>(istream& is, __int128_t& x) {
    x = 0;
    string s;
    is >> s;
    int n = int(s.size()), it = 0;
    if (s[0] == '-') it++;
    for (; it < n; it++) x = (x * 10 + s[it] - '0');
    if (s[0] == '-') x = -x;
    return is;
}
ostream& operator<<(ostream& os, __int128_t x) {
    if (x == 0) return os << 0;
    if (x < 0) os << '-', x = -x;
    deque<int> deq;
    while (x) deq.emplace_front(x % 10), x /= 10;
    for (int e : deq) os << e;
    return os;
}
template<class T1, class T2>
ostream& operator<<(ostream& os, const pair<T1, T2>& p) {
    return os << "(" << p.first << ", " << p.second << ")";
}
template<class T> 
ostream& operator<<(ostream& os, const vector<T>& v) {
    os << "{";
    for (int i = 0; i < int(v.size()); i++) {
        if (i) os << ", ";
        os << v[i];
    }
    return os << "}";
}
template<class Container> inline int SZ(Container& v) { return int(v.size()); }
template<class T> inline void UNIQUE(vector<T>& v) { v.erase(unique(v.begin(), v.end()), v.end()); }
template<class T1, class T2> inline bool chmax(T1& a, T2 b) { if (a < b) {a = b; return true ;} return false ;}
template<class T1, class T2> inline bool chmin(T1& a, T2 b) { if (a > b) {a = b; return true ;} return false ;}
inline int topbit(int x) { return x == 0 ? -1 : 31 - __builtin_clz(x); }
inline int topbit(long long x) { return x == 0 ? -1 : 63 - __builtin_clzll(x); }
inline int botbit(int x) { return x == 0 ? 32 : __builtin_ctz(x); }
inline int botbit(long long x) { return x == 0 ? 64 : __builtin_ctzll(x); }
inline int popcount(int x) { return __builtin_popcount(x); }
inline int popcount(long long x) { return __builtin_popcountll(x); }
inline int kthbit(long long x, int k) { return (x>>k) & 1; }
inline constexpr long long TEN(int x) { return x == 0 ? 1 : TEN(x-1) * 10; }
inline void print() { cout << "\n"; }
template<class T>
inline void print(const vector<T>& v) {
    for (int i = 0; i < int(v.size()); i++) {
        if (i) cout << " ";
        cout << v[i];
    }
    print();
}
template<class T, class... Args>
inline void print(const T& x, const Args& ... args) {
    cout << x << " ";
    print(args...);
}
#ifdef MINATO_LOCAL
inline void debug_out() { cerr << endl; }
template <class T, class... Args>
inline void debug_out(const T& x, const Args& ... args) {
    cerr << " " << x;
    debug_out(args...);
}
#define debug(...) cerr << __LINE__ << " : [" << #__VA_ARGS__ << "] =", debug_out(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " : " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
struct fast_ios { fast_ios() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

template<int m> 
struct ModInt {
  public:
    static constexpr int mod() { return m; }
    static ModInt raw(int v) {
        ModInt x;
        x._v = v;
        return x;
    }

    ModInt() : _v(0) {}
    ModInt(long long v) {
        long long x = (long long)(v % (long long)(umod()));
        if (x < 0) x += umod();
        _v = (unsigned int)(x);
    }

    unsigned int val() const { return _v; }

    ModInt& operator++() {
        _v++;
        if (_v == umod()) _v = 0;
        return *this;
    }
    ModInt& operator--() {
        if (_v == 0) _v = umod();
        _v--;
        return *this;
    }
    ModInt operator++(int) {
        ModInt result = *this;
        ++*this;
        return result;
    }
    ModInt operator--(int) {
        ModInt result = *this;
        --*this;
        return result;
    }

    ModInt& operator+=(const ModInt& rhs) {
        _v += rhs._v;
        if (_v >= umod()) _v -= umod();
        return *this;
    }
    ModInt& operator-=(const ModInt& rhs) {
        _v -= rhs._v;
        if (_v >= umod()) _v += umod();
        return *this;
    }
    ModInt& operator*=(const ModInt& rhs) {
        unsigned long long z = _v;
        z *= rhs._v;
        _v = (unsigned int)(z % umod());
        return *this;
    }
    ModInt& operator^=(long long n) {
        ModInt x = *this;
        *this = 1;
        if (n < 0) x = x.inv(), n = -n;
        while (n) {
            if (n & 1) *this *= x;
            x *= x;
            n >>= 1;
        }
        return *this;
    }
    ModInt& operator/=(const ModInt& rhs) { return *this = *this * rhs.inv(); }

    ModInt operator+() const { return *this; }
    ModInt operator-() const { return ModInt() - *this; }

    ModInt pow(long long n) const {
        ModInt r = *this;
        r ^= n;
        return r;
    }
    ModInt inv() const {
        int a = _v, b = umod(), y = 1, z = 0, t;
        for (; ; ) {
            t = a / b; a -= t * b;
            if (a == 0) {
                assert(b == 1 || b == -1);
                return ModInt(b * z);
            }
            y -= t * z;
            t = b / a; b -= t * a;
            if (b == 0) {
                assert(a == 1 || a == -1);
                return ModInt(a * y);
            }
            z -= t * y;
        }
    }

    friend ModInt operator+(const ModInt& lhs, const ModInt& rhs) { return ModInt(lhs) += rhs; }
    friend ModInt operator-(const ModInt& lhs, const ModInt& rhs) { return ModInt(lhs) -= rhs; }
    friend ModInt operator*(const ModInt& lhs, const ModInt& rhs) { return ModInt(lhs) *= rhs; }
    friend ModInt operator/(const ModInt& lhs, const ModInt& rhs) { return ModInt(lhs) /= rhs; }
    friend ModInt operator^(const ModInt& lhs, long long rhs) { return ModInt(lhs) ^= rhs; }
    friend bool operator==(const ModInt& lhs, const ModInt& rhs) { return lhs._v == rhs._v; }
    friend bool operator!=(const ModInt& lhs, const ModInt& rhs) { return lhs._v != rhs._v; }
    friend ModInt operator+(long long lhs, const ModInt& rhs) { return (ModInt(lhs) += rhs); }
    friend ModInt operator-(long long lhs, const ModInt& rhs) { return (ModInt(lhs) -= rhs); }
    friend ModInt operator*(long long lhs, const ModInt& rhs) { return (ModInt(lhs) *= rhs); }
    friend ostream &operator<<(ostream& os, const ModInt& rhs) { return os << rhs._v; }

  private:
    unsigned int _v;
    static constexpr unsigned int umod() { return m; }
};
 
//constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;

using mint = ModInt<MOD>;

template<typename Int, int sz>
struct SquareMatrix {
    using arr = array<Int, sz>;
   	using mat = array<arr, sz>;
    mat A;
	int N;

   	SquareMatrix() : SquareMatrix(sz) {}
   	SquareMatrix(int N) : N(N) {
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < N; j++) {
                A[i][j] = 0;
            }
        }
    }

    int size() { return N; }
	const arr& operator[](int k) const { return A[k]; }
  	arr& operator[](int k) { return A[k]; }

    static SquareMatrix add_identity(int N) { return SquareMatrix(N); }
  	static SquareMatrix mul_identity(int N) {
        SquareMatrix I(N);
    	for(int i = 0; i < N; i++) I[i][i] = 1;
    	return I;
  	}

  	SquareMatrix& operator+=(const SquareMatrix &B) {
    	for(int i = 0; i < N; i++) {
      	    for(int j = 0; j < N; j++) {
        	    (*this)[i][j] += B[i][j];
            }
        }
    	return *this;
  	}

  	SquareMatrix& operator-=(const SquareMatrix &B) {
    	for(int i = 0; i < N; i++) {
      		for(int j = 0; j < N; j++) {
				(*this)[i][j] -= B[i][j];
			}
		}
    	return *this;
  	}

    SquareMatrix& operator*=(const SquareMatrix &B) {
        SquareMatrix C(N);
        for(int i = 0; i < N; i++) {
            for(int k = 0; k < N; k++) {
                for(int j = 0; j < N; j++) {
                    C[i][j] += (*this)[i][k] * B[k][j];
                }
            }
        }
        A.swap(C.A);
        return *this;
    }

    SquareMatrix& operator^=(long long k) {
        SquareMatrix B = SquareMatrix::mul_identity(N);
        while(k) {
            if(k & 1) B *= *this;
            *this *= *this;
            k >>= 1;
        }
        A.swap(B.A);
        return *this;
    }

    SquareMatrix pow(long long k) {
        SquareMatrix ret = A;
        ret ^= k;
        return ret;
    }

    SquareMatrix operator+(const SquareMatrix& B) const { return (SquareMatrix(*this) += B); }
    SquareMatrix operator-(const SquareMatrix& B) const { return (SquareMatrix(*this) -= B); }
    SquareMatrix operator*(const SquareMatrix& B) const { return (SquareMatrix(*this) *= B); }
    SquareMatrix operator^(long long k) const { return (SquareMatrix(*this) ^= k); }
    bool operator==(const SquareMatrix& B) const { return A == B.A; }
    bool operator!=(const SquareMatrix& B) const { return A != B.A; }

    friend ostream& operator<<(ostream& os, SquareMatrix& B) {
        for(int i = 0; i < B.size(); i++) {
            os << "[";
            for(int j = 0; j < B.size(); j++) {
                os << B[i][j] << (j == B.size()-1 ? "]\n" : ",");
            }
        }
        return os;
    }
};

const int MAX = 125;

int main() {
    int N,K; cin >> N >> K;
    int L = K*K*K;
    auto calc=[&](int i, int j, int k) {return i*K*K + j*K + k;};
    SquareMatrix<mint, MAX> mat(L);
    vector<vector<int>> seni(L);
    // i:count a, j:count ab, k:count abc
    rep(i,K) rep(j,K) rep(k,K) {
        int cur = calc(i,j,k);
        int nex = calc((i+1)%K,j,k);
        seni[nex].emplace_back(cur);
        nex = calc(i,(j+i)%K,k);
        seni[nex].emplace_back(cur);
        nex = calc(i,j,(k+j)%K);
        seni[nex].emplace_back(cur);
    }

    rep(i,L) {
        for (auto e : seni[i]) {
            mat[i][e]++;
        }
    }

    mat ^= N;
    mint ans = 0;
    rep(i,L) {
        if (i%K==0) ans += mat[i][0];
    }
    cout << ans << ln;
}

yukicoder

結果

テストケース

ソースコード