結果
問題 | No.2507 Yet Another Subgraph Counting |
ユーザー | risujiroh |
提出日時 | 2023-10-13 23:12:41 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 71 ms / 2,000 ms |
コード長 | 5,260 bytes |
コンパイル時間 | 4,285 ms |
コンパイル使用メモリ | 373,632 KB |
実行使用メモリ | 14,976 KB |
最終ジャッジ日時 | 2024-09-15 19:04:17 |
合計ジャッジ時間 | 6,557 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 4 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 3 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 4 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 4 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 4 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 3 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 5 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 9 ms
5,376 KB |
testcase_26 | AC | 22 ms
8,192 KB |
testcase_27 | AC | 5 ms
5,376 KB |
testcase_28 | AC | 9 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 23 ms
8,192 KB |
testcase_31 | AC | 67 ms
14,976 KB |
testcase_32 | AC | 66 ms
14,976 KB |
testcase_33 | AC | 4 ms
5,376 KB |
testcase_34 | AC | 3 ms
5,376 KB |
testcase_35 | AC | 4 ms
5,376 KB |
testcase_36 | AC | 2 ms
5,376 KB |
testcase_37 | AC | 69 ms
14,976 KB |
testcase_38 | AC | 71 ms
14,848 KB |
testcase_39 | AC | 69 ms
14,848 KB |
testcase_40 | AC | 71 ms
14,848 KB |
testcase_41 | AC | 71 ms
14,848 KB |
testcase_42 | AC | 71 ms
14,848 KB |
testcase_43 | AC | 20 ms
8,320 KB |
testcase_44 | AC | 66 ms
14,848 KB |
testcase_45 | AC | 4 ms
5,376 KB |
testcase_46 | AC | 4 ms
5,376 KB |
testcase_47 | AC | 67 ms
14,848 KB |
testcase_48 | AC | 2 ms
5,376 KB |
testcase_49 | AC | 68 ms
14,976 KB |
testcase_50 | AC | 3 ms
5,376 KB |
testcase_51 | AC | 22 ms
8,320 KB |
ソースコード
#if __INCLUDE_LEVEL__ == 0 #include __BASE_FILE__ namespace { void solve() { int n, m; scan(n, m); vector<int> g(n); while (m--) { int i, j; scan(i, j); --i, --j; g[i] |= 1 << j; g[j] |= 1 << i; } vector<int64_t> c(1 << n); { vector f(n, vector(n, vector<int64_t>(1 << n))); for (int i : rep(n)) { f[i][i][1 << i] = 1; } for (int mask : rep(1, 1 << n)) { for (int i : bits(mask)) { for (int j : bits(mask)) { for (int k : bits(g[j] & ~mask)) { f[i][k][mask | 1 << k] += f[i][j][mask]; } } } int p = popcnt(mask); if (p == 1) { c[mask] = 1; } else if (p != 2) { for (int i : bits(mask)) { for (int j : bits(g[i] & mask)) { c[mask] += f[i][j][mask]; } } c[mask] /= p * 2; } } } vector<int> a(1 << n); for (int i : rep(n)) { for (int j : bits(g[i])) { if (i < j) { a[1 << i | 1 << j] = 1; } } } for (int s = 1; s < 1 << n; s *= 2) { for (int o = 0; o < 1 << n; o += s * 2) { for (int i : rep(o, o + s)) { a[i + s] += a[i]; } } } vector f(n, vector<int64_t>(1 << n)); for (int mask : rep(1, 1 << n)) { f[0][mask] = c[mask]; int p = popcnt(mask); for (int e : rep(1, p)) { for (int sub : subsets(mask & (mask - 1))) { if (sub == 0) { break; } for (int e0 : rep(e)) { f[e][mask] += f[e0][sub] * f[e - e0 - 1][mask ^ sub] * (a[mask] - a[sub] - a[mask ^ sub]); } } f[e][mask] /= e; } } vector<int64_t> b(1 << n); for (int mask : rep(1 << n)) { for (int e : rep(popcnt(mask))) { b[mask] += f[e][mask]; } } vector<int64_t> h(1 << n); h[0] = 1; for (int mask : rep(1, 1 << n)) { h[mask] += b[mask]; for (int sub : subsets(mask & (mask - 1))) { if (sub == 0) { break; } h[mask] += h[sub] * b[mask ^ sub]; } } print(h.back()); } } // namespace int main() { ios::sync_with_stdio(false); cin.tie(nullptr); solve(); } #else // __INCLUDE_LEVEL__ #include <bits/stdc++.h> using namespace std; #include <immintrin.h> __attribute__((target("bmi"))) inline int tzcnt(int64_t x) { return _tzcnt_u64(x); } __attribute__((target("bmi2"))) inline int64_t bzhi(int64_t x, int n) { return _bzhi_u64(x, n); } __attribute__((target("bmi2"))) inline int64_t pdep(int64_t x, int64_t mask) { return _pdep_u64(x, mask); } __attribute__((target("bmi2"))) inline int64_t pext(int64_t x, int64_t mask) { return _pext_u64(x, mask); } __attribute__((target("lzcnt"))) inline int lzcnt(int64_t x) { return _lzcnt_u64(x); } __attribute__((target("popcnt"))) inline int popcnt(int64_t x) { return __builtin_popcountll(x); } struct bits { int64_t x; int i; explicit bits(int64_t x) : x(x), i(tzcnt(x)) {} bits begin() const { return *this; } int end() const { return 0; } bool operator!=(int) const { return x; } void operator++() { i = tzcnt(x &= x - 1); } int operator*() const { return i; } }; struct subsets { int64_t x, y; explicit subsets(int64_t x) : x(x), y(x + 1) {} subsets begin() const { return *this; } int end() const { return 0; } bool operator!=(int) const { return y; } void operator++() const {} int64_t operator*() { return y = (y - 1) & x; } }; namespace std { template <class T1, class T2> istream& operator>>(istream& is, pair<T1, T2>& p) { return is >> p.first >> p.second; } template <class... Ts> istream& operator>>(istream& is, tuple<Ts...>& t) { return apply([&is](auto&... xs) -> istream& { return (is >> ... >> xs); }, t); } template <class R, enable_if_t<!is_convertible_v<R, string>>* = nullptr> auto operator>>(istream& is, R&& r) -> decltype(is >> *begin(r)) { for (auto&& e : r) { is >> e; } return is; } template <class T1, class T2> ostream& operator<<(ostream& os, const pair<T1, T2>& p) { return os << p.first << ' ' << p.second; } template <class... Ts> ostream& operator<<(ostream& os, const tuple<Ts...>& t) { auto f = [&os](const auto&... xs) -> ostream& { [[maybe_unused]] auto sep = ""; ((os << exchange(sep, " ") << xs), ...); return os; }; return apply(f, t); } template <class R, enable_if_t<!is_convertible_v<R, string_view>>* = nullptr> auto operator<<(ostream& os, R&& r) -> decltype(os << *begin(r)) { auto sep = ""; for (auto&& e : r) { os << exchange(sep, " ") << e; } return os; } } // namespace std template <class... Ts> void scan(Ts&&... xs) { (cin >> ... >> xs); } template <class... Ts> void print(Ts&&... xs) { cout << tie(xs...) << '\n'; } inline auto rep(int l, int r) { return views::iota(min(l, r), r); } inline auto rep(int n) { return rep(0, n); } inline auto rep1(int l, int r) { return rep(l, r + 1); } inline auto rep1(int n) { return rep(1, n + 1); } inline auto per(int l, int r) { return rep(l, r) | views::reverse; } inline auto per(int n) { return per(0, n); } inline auto per1(int l, int r) { return per(l, r + 1); } inline auto per1(int n) { return per(1, n + 1); } inline auto len = ranges::ssize; #endif // __INCLUDE_LEVEL__