結果
問題 | No.1720 Division Permutation |
ユーザー | ei1333333 |
提出日時 | 2021-10-22 23:32:02 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 938 ms / 4,000 ms |
コード長 | 11,759 bytes |
コンパイル時間 | 2,493 ms |
コンパイル使用メモリ | 220,388 KB |
実行使用メモリ | 327,112 KB |
最終ジャッジ日時 | 2024-09-23 08:08:43 |
合計ジャッジ時間 | 32,947 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
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
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 938 ms
326,572 KB |
testcase_14 | AC | 936 ms
326,760 KB |
testcase_15 | AC | 544 ms
205,484 KB |
testcase_16 | AC | 883 ms
315,012 KB |
testcase_17 | AC | 584 ms
219,472 KB |
testcase_18 | AC | 693 ms
327,112 KB |
testcase_19 | AC | 712 ms
326,908 KB |
testcase_20 | AC | 721 ms
326,728 KB |
testcase_21 | AC | 702 ms
326,792 KB |
testcase_22 | AC | 715 ms
326,836 KB |
testcase_23 | AC | 710 ms
326,752 KB |
testcase_24 | AC | 713 ms
326,844 KB |
testcase_25 | AC | 714 ms
326,908 KB |
testcase_26 | AC | 711 ms
326,856 KB |
testcase_27 | AC | 708 ms
326,820 KB |
testcase_28 | AC | 703 ms
326,720 KB |
testcase_29 | AC | 690 ms
326,768 KB |
testcase_30 | AC | 709 ms
326,776 KB |
testcase_31 | AC | 703 ms
326,720 KB |
testcase_32 | AC | 2 ms
6,948 KB |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | AC | 2 ms
6,944 KB |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | AC | 2 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 2 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,944 KB |
testcase_40 | AC | 2 ms
6,940 KB |
testcase_41 | AC | 2 ms
6,948 KB |
testcase_42 | AC | 2 ms
6,944 KB |
testcase_43 | AC | 698 ms
280,332 KB |
testcase_44 | AC | 635 ms
259,744 KB |
testcase_45 | AC | 599 ms
233,968 KB |
testcase_46 | AC | 421 ms
181,144 KB |
testcase_47 | AC | 591 ms
242,956 KB |
testcase_48 | AC | 449 ms
193,784 KB |
testcase_49 | AC | 727 ms
290,536 KB |
testcase_50 | AC | 559 ms
231,244 KB |
testcase_51 | AC | 454 ms
192,700 KB |
testcase_52 | AC | 640 ms
263,320 KB |
testcase_53 | AC | 842 ms
326,572 KB |
testcase_54 | AC | 926 ms
326,644 KB |
testcase_55 | AC | 805 ms
326,740 KB |
testcase_56 | AC | 815 ms
326,552 KB |
testcase_57 | AC | 911 ms
326,640 KB |
testcase_58 | AC | 812 ms
326,644 KB |
testcase_59 | AC | 812 ms
326,636 KB |
testcase_60 | AC | 936 ms
326,708 KB |
testcase_61 | AC | 804 ms
326,532 KB |
testcase_62 | AC | 824 ms
326,732 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using int64 = long long; // const int mod = 1e9 + 7; const int mod = 998244353; const int64 infll = (1LL << 62) - 1; const int inf = (1 << 30) - 1; struct IoSetup { IoSetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); cerr << fixed << setprecision(10); } } iosetup; template< typename T1, typename T2 > ostream &operator<<(ostream &os, const pair< T1, T2 > &p) { os << p.first << " " << p.second; return os; } template< typename T1, typename T2 > istream &operator>>(istream &is, pair< T1, T2 > &p) { is >> p.first >> p.second; return is; } template< typename T > ostream &operator<<(ostream &os, const vector< T > &v) { for(int i = 0; i < (int) v.size(); i++) { os << v[i] << (i + 1 != v.size() ? " " : ""); } return os; } template< typename T > istream &operator>>(istream &is, vector< T > &v) { for(T &in: v) is >> in; return is; } template< typename T1, typename T2 > inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); } template< typename T1, typename T2 > inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); } template< typename T = int64 > vector< T > make_v(size_t a) { return vector< T >(a); } template< typename T, typename... Ts > auto make_v(size_t a, Ts... ts) { return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...)); } template< typename T, typename V > typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) { t = v; } template< typename T, typename V > typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) { for(auto &e: t) fill_v(e, v); } template< typename F > struct FixPoint : F { FixPoint(F &&f) : F(forward< F >(f)) {} template< typename... Args > decltype(auto) operator()(Args &&... args) const { return F::operator()(*this, forward< Args >(args)...); } }; template< typename F > inline decltype(auto) MFP(F &&f) { return FixPoint< F >{forward< F >(f)}; } /** * @brief Montgomery ModInt */ template< uint32_t mod, bool fast = false > struct MontgomeryModInt { using mint = MontgomeryModInt; using i32 = int32_t; using i64 = int64_t; using u32 = uint32_t; using u64 = uint64_t; static constexpr u32 get_r() { u32 ret = mod; for(i32 i = 0; i < 4; i++) ret *= 2 - mod * ret; return ret; } static constexpr u32 r = get_r(); static constexpr u32 n2 = -u64(mod) % mod; static_assert(r * mod == 1, "invalid, r * mod != 1"); static_assert(mod < (1 << 30), "invalid, mod >= 2 ^ 30"); static_assert((mod & 1) == 1, "invalid, mod % 2 == 0"); u32 x; MontgomeryModInt() : x{} {} MontgomeryModInt(const i64 &a) : x(reduce(u64(fast ? a : (a % mod + mod)) * n2)) {} static constexpr u32 reduce(const u64 &b) { return u32(b >> 32) + mod - u32((u64(u32(b) * r) * mod) >> 32); } mint &operator+=(const mint &p) { if(i32(x += p.x - 2 * mod) < 0) x += 2 * mod; return *this; } mint &operator-=(const mint &p) { if(i32(x -= p.x) < 0) x += 2 * mod; return *this; } mint &operator*=(const mint &p) { x = reduce(u64(x) * p.x); return *this; } mint &operator/=(const mint &p) { *this *= p.inverse(); return *this; } mint operator-() const { return mint() - *this; } mint operator+(const mint &p) const { return mint(*this) += p; } mint operator-(const mint &p) const { return mint(*this) -= p; } mint operator*(const mint &p) const { return mint(*this) *= p; } mint operator/(const mint &p) const { return mint(*this) /= p; } bool operator==(const mint &p) const { return (x >= mod ? x - mod : x) == (p.x >= mod ? p.x - mod : p.x); } bool operator!=(const mint &p) const { return (x >= mod ? x - mod : x) != (p.x >= mod ? p.x - mod : p.x); } u32 get() const { u32 ret = reduce(x); return ret >= mod ? ret - mod : ret; } mint pow(u64 n) const { mint ret(1), mul(*this); while(n > 0) { if(n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } mint inverse() const { return pow(mod - 2); } friend ostream &operator<<(ostream &os, const mint &p) { return os << p.get(); } friend istream &operator>>(istream &is, mint &a) { i64 t; is >> t; a = mint(t); return is; } static u32 get_mod() { return mod; } }; using modint = MontgomeryModInt< mod >; int main() { int N, K; cin >> N >> K; vector< int > P(N); cin >> P; for(auto &p: P) --p; vector< int > latte(N), malta(N); auto dp = make_v< modint >(N + 1, K + 1); dp[0][0] = 1; vector< int > used(N, -1); vector< deque< int > > qsR(N + N); auto dp_buf = make_v< modint >(N + N, K + 1); int time_stamp = 0; auto rec = MFP([&](auto rec, int l, int r) { if(l + 1 == r) { for(int k = 0; k < K; k++) { dp[l + 1][k + 1] += dp[l][k]; } return; } int m = (l + r) / 2; rec(l, m); // [l, m) -> [m, r) for(int k = m - 1, p = inf, q = -inf; k >= l; k--) { chmin(p, P[k]); chmax(q, P[k]); latte[k] = p; malta[k] = q; } for(int k = m, p = inf, q = -inf; k < r; k++) { chmin(p, P[k]); chmax(q, P[k]); latte[k] = p; malta[k] = q; } { auto fix = [&](int que_idx, int low) { while(not qsR[que_idx].empty() and malta[qsR[que_idx].front()] <= low) { for(int k = 0; k < K; k++) { dp_buf[que_idx][k] -= dp[qsR[que_idx].front()][k]; } qsR[que_idx].pop_front(); } }; int t = m; for(int s = m - 1; s >= l; s--) { while(t < r and latte[s] < latte[t]) { int p = t; int v = latte[p]; int Y = p + v - malta[p]; if(l <= Y and Y < m and used[Y] == time_stamp and malta[p] > malta[Y]) { for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp[Y][k]; } } fix(p + v, malta[p]); for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp_buf[p + v][k]; } // malta[p]以下を引いたもの /* for(int i: qsR[p + v]) { // malta[p]もmalta[i]も単調増加 if(malta[p] < malta[i]) { for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp[i][k]; } } } */ used[p] = time_stamp; ++t; } int p = s; int v = latte[p]; int Y = malta[p] + p - v; if(m <= Y and Y < r and used[Y] == time_stamp and malta[p] > malta[Y]) { for(int k = 0; k < K; k++) { dp[Y + 1][k + 1] += dp[p][k]; } } used[p] = time_stamp; qsR[malta[p] + p].emplace_back(p); for(int k = 0; k < K; k++) { dp_buf[malta[p] + p][k] += dp[p][k]; } } while(t < r) { int p = t; int v = latte[p]; int Y = p + v - malta[p]; if(l <= Y and Y < m and used[Y] == time_stamp and malta[p] > malta[Y]) { for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp[Y][k]; } } fix(p + v, malta[p]); for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp_buf[p + v][k]; } used[p] = time_stamp; ++t; } } for(int k = l; k < m; k++) { qsR[malta[k] + k].clear(); for(int i = 0; i < K; i++) dp_buf[malta[k] + k][i] = 0; } ++time_stamp; { auto fix = [&](int que_idx, int low) { while(not qsR[que_idx].empty() and malta[qsR[que_idx].front()] >= low) { for(int k = 0; k < K; k++) { dp_buf[que_idx][k] -= dp[qsR[que_idx].front()][k]; } qsR[que_idx].pop_front(); } }; int t = r - 1; for(int s = l; s < m; s++) { while(t >= m and latte[s] > latte[t]) { int p = t; int v = latte[p]; fix(N + malta[p] - p, malta[p]); for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp_buf[N + malta[p] - p][k]; } /* for(int i: qsR[N + malta[p] - p]) { // malta[i]もmalta[p]も単調減少に出現する if(malta[i] < malta[p]) { for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp[i][k]; } } } */ --t; } int p = s; int v = latte[p]; qsR[N + v - p].emplace_back(p); for(int k = 0; k < K; k++) { dp_buf[N + v - p][k] += dp[p][k]; } } while(t >= m) { int p = t; int v = latte[p]; fix(N + malta[p] - p, malta[p]); for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp_buf[N + malta[p] - p][k]; } /* for(int i: qsR[N + malta[p] - p]) { if(malta[i] < malta[p]) { for(int k = 0; k < K; k++) { dp[p + 1][k + 1] += dp[i][k]; } } } */ --t; } } for(int k = l; k < m; k++) { qsR[N + latte[k] - k].clear(); for(int i = 0; i < K; i++) dp_buf[N + latte[k] - k][i] = 0; } rec(m, r); } ); rec(0, N); for( int i = 1; i <= K; i++) cout << dp[N][i] << "\n"; }