結果
問題 | No.2215 Slide Subset Sum |
ユーザー |
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提出日時 | 2023-02-10 23:05:19 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 146 ms / 3,000 ms |
コード長 | 6,454 bytes |
コンパイル時間 | 2,837 ms |
コンパイル使用メモリ | 256,532 KB |
実行使用メモリ | 90,028 KB |
最終ジャッジ日時 | 2024-07-07 17:07:23 |
合計ジャッジ時間 | 8,524 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 45 |
ソースコード
#include <bits/stdc++.h>using namespace std;#define FOR(i,m,n) for(int i=(m);i<(n);++i)#define REP(i,n) FOR(i,0,n)#define ALL(v) (v).begin(),(v).end()using ll = long long;constexpr int INF = 0x3f3f3f3f;constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL;constexpr double EPS = 1e-8;constexpr int MOD = 998244353;// constexpr int MOD = 1000000007;constexpr int DY4[]{1, 0, -1, 0}, DX4[]{0, -1, 0, 1};constexpr int DY8[]{1, 1, 0, -1, -1, -1, 0, 1};constexpr int DX8[]{0, -1, -1, -1, 0, 1, 1, 1};template <typename T, typename U>inline bool chmax(T& a, U b) { return a < b ? (a = b, true) : false; }template <typename T, typename U>inline bool chmin(T& a, U b) { return a > b ? (a = b, true) : false; }struct IOSetup {IOSetup() {std::cin.tie(nullptr);std::ios_base::sync_with_stdio(false);std::cout << fixed << setprecision(20);}} iosetup;template <int M>struct MInt {unsigned int v;MInt() : v(0) {}MInt(const long long x) : v(x >= 0 ? x % M : x % M + M) {}static constexpr int get_mod() { return M; }static void set_mod(const int divisor) { assert(divisor == M); }static void init(const int x) {inv<true>(x);fact(x);fact_inv(x);}template <bool MEMOIZES = false>static MInt inv(const int n) {// #if __cplusplus >= 201703L// assert(0 <= n && n < M && std::gcd(n, M) == 1);// #else// assert(0 <= n && n < M && std::__gcd(n, M) == 1);// #endif // __cplusplus >= 201703Lstatic std::vector<MInt> inverse{0, 1};const int prev = inverse.size();if (n < prev) return inverse[n];const auto memoize = [prev, n]() -> void {// "n!" and "M" must be disjoint.inverse.resize(n + 1);for (int i = prev; i <= n; ++i) {inverse[i] = -inverse[M % i] * (M / i);}};#if __cplusplus >= 201703Lif constexpr (MEMOIZES) {memoize();return inverse[n];}#elseif (MEMOIZES) {memoize();return inverse[n];}#endif // __cplusplus >= 201703Lint u = 1, v = 0;for (unsigned int a = n, b = M; b;) {const unsigned int q = a / b;std::swap(a -= q * b, b);std::swap(u -= q * v, v);}return u;}static MInt fact(const int n) {static std::vector<MInt> factorial{1};const int prev = factorial.size();if (n >= prev) {factorial.resize(n + 1);for (int i = prev; i <= n; ++i) {factorial[i] = factorial[i - 1] * i;}}return factorial[n];}static MInt fact_inv(const int n) {static std::vector<MInt> f_inv{1};const int prev = f_inv.size();if (n >= prev) {f_inv.resize(n + 1);f_inv[n] = inv(fact(n).v);for (int i = n; i > prev; --i) {f_inv[i - 1] = f_inv[i] * i;}}return f_inv[n];}static MInt nCk(const int n, const int k) {if (n < 0 || n < k || k < 0) return 0;return fact(n) * (n - k < k ? fact_inv(k) * fact_inv(n - k) :fact_inv(n - k) * fact_inv(k));}static MInt nPk(const int n, const int k) {return n < 0 || n < k || k < 0 ? 0 : fact(n) * fact_inv(n - k);}static MInt nHk(const int n, const int k) {return n < 0 || k < 0 ? 0 : (k == 0 ? 1 : nCk(n + k - 1, k));}static MInt large_nCk(long long n, const int k) {if (n < 0 || n < k || k < 0) return 0;inv<true>(k);MInt res = 1;for (int i = 1; i <= k; ++i) {res *= inv(i) * n--;}return res;}MInt pow(long long exponent) const {MInt res = 1, tmp = *this;for (; exponent > 0; exponent >>= 1) {if (exponent & 1) res *= tmp;tmp *= tmp;}return res;}MInt& operator+=(const MInt& x) {if (static_cast<int>(v += x.v) >= M) v -= M;return *this;}MInt& operator-=(const MInt& x) {if (static_cast<int>(v += M - x.v) >= M) v -= M;return *this;}MInt& operator*=(const MInt& x) {v = static_cast<unsigned long long>(v) * x.v % M;return *this;}MInt& operator/=(const MInt& x) { return *this *= inv(x.v); }bool operator==(const MInt& x) const { return v == x.v; }bool operator!=(const MInt& x) const { return v != x.v; }bool operator<(const MInt& x) const { return v < x.v; }bool operator<=(const MInt& x) const { return v <= x.v; }bool operator>(const MInt& x) const { return v > x.v; }bool operator>=(const MInt& x) const { return v >= x.v; }MInt& operator++() {if (static_cast<int>(++v) == M) v = 0;return *this;}MInt operator++(int) {const MInt res = *this;++*this;return res;}MInt& operator--() {v = (v == 0 ? M - 1 : v - 1);return *this;}MInt operator--(int) {const MInt res = *this;--*this;return res;}MInt operator+() const { return *this; }MInt operator-() const { return MInt(v ? M - v : 0); }MInt operator+(const MInt& x) const { return MInt(*this) += x; }MInt operator-(const MInt& x) const { return MInt(*this) -= x; }MInt operator*(const MInt& x) const { return MInt(*this) *= x; }MInt operator/(const MInt& x) const { return MInt(*this) /= x; }friend std::ostream& operator<<(std::ostream& os, const MInt& x) {return os << x.v;}friend std::istream& operator>>(std::istream& is, MInt& x) {long long v;is >> v;x = MInt(v);return is;}};using ModInt = MInt<MOD>;int main() {int n, m, k; cin >> n >> m >> k;vector add(k, vector(k, 0));REP(i, k) REP(j, k) add[i][j] = (i + j) % k;vector<int> a(n); REP(i, n) cin >> a[i];vector dpl(m, vector(k, ModInt(0)));vector<ModInt> dpr1(k, 0), dpr2(k, 0);for (int i = 0; i + m <= n; i += m) {REP(x, m) fill(ALL(dpl[x]), 0);dpl[m - 1][0] = 1;++dpl[m - 1][a[i + m - 1]];for (int x = m - 1; x > 0; --x) {copy(ALL(dpl[x]), dpl[x - 1].begin());REP(y, k) dpl[x - 1][add[y][a[i + x - 1]]] += dpl[x][y];}cout << dpl[0][0] - 1 << '\n';// REP(x, m) REP(y, k) cout << dpl[x][y] << " \n"[y + 1 == k];fill(ALL(dpr1), 0);dpr1[0] = 1;for (int j = 0; j < m - 1 && i + m + j < n; ++j) {copy(ALL(dpr1), dpr2.begin());REP(x, k) dpr2[add[x][a[i + m + j]]] += dpr1[x];dpr1.swap(dpr2);ModInt ans = dpl[j + 1][0] * dpr1[0];FOR(y, 1, k) ans += dpl[j + 1][y] * dpr1[k - y];cout << ans - 1 << '\n';// REP(x, k) cout << dpr1[x] << " \n"[x + 1 == k];}}return 0;}