結果
問題 | No.2507 Yet Another Subgraph Counting |
ユーザー | tokusakurai |
提出日時 | 2023-10-23 12:24:16 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 285 ms / 2,000 ms |
コード長 | 6,069 bytes |
コンパイル時間 | 2,479 ms |
コンパイル使用メモリ | 215,036 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-22 10:03:54 |
合計ジャッジ時間 | 7,654 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 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 | 10 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 3 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 10 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 11 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 2 ms
6,944 KB |
testcase_17 | AC | 10 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 4 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | AC | 10 ms
6,940 KB |
testcase_24 | AC | 3 ms
6,940 KB |
testcase_25 | AC | 27 ms
6,940 KB |
testcase_26 | AC | 88 ms
6,944 KB |
testcase_27 | AC | 11 ms
6,944 KB |
testcase_28 | AC | 28 ms
6,940 KB |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 89 ms
6,940 KB |
testcase_31 | AC | 281 ms
6,940 KB |
testcase_32 | AC | 284 ms
6,944 KB |
testcase_33 | AC | 10 ms
6,944 KB |
testcase_34 | AC | 5 ms
6,940 KB |
testcase_35 | AC | 10 ms
6,940 KB |
testcase_36 | AC | 3 ms
6,944 KB |
testcase_37 | AC | 285 ms
6,944 KB |
testcase_38 | AC | 278 ms
6,940 KB |
testcase_39 | AC | 284 ms
6,940 KB |
testcase_40 | AC | 283 ms
6,944 KB |
testcase_41 | AC | 281 ms
6,940 KB |
testcase_42 | AC | 278 ms
6,940 KB |
testcase_43 | AC | 86 ms
6,940 KB |
testcase_44 | AC | 281 ms
6,944 KB |
testcase_45 | AC | 10 ms
6,940 KB |
testcase_46 | AC | 10 ms
6,944 KB |
testcase_47 | AC | 279 ms
6,944 KB |
testcase_48 | AC | 3 ms
6,940 KB |
testcase_49 | AC | 282 ms
6,940 KB |
testcase_50 | AC | 5 ms
6,940 KB |
testcase_51 | AC | 87 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; struct io_setup { io_setup() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout << fixed << setprecision(15); } } io_setup; template <typename T> void print(const vector<T> &v, T x = 0) { int n = v.size(); for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' '); if (v.empty()) cout << '\n'; } constexpr int MOD = 998244353; template <typename T> void fast_zeta_transform(vector<T> &a, bool upper) { int n = a.size(); assert((n & (n - 1)) == 0); for (int i = 1; i < n; i <<= 1) { for (int j = 0; j < n; j++) { if (!(j & i)) { if (upper) { a[j] += a[j | i]; } else { a[j | i] += a[j]; } } } } } template <typename T> void fast_mobius_transform(vector<T> &a, bool upper) { int n = a.size(); assert((n & (n - 1)) == 0); for (int i = 1; i < n; i <<= 1) { for (int j = 0; j < n; j++) { if (!(j & i)) { if (upper) { a[j] -= a[j | i]; } else { a[j | i] -= a[j]; } } } } } template <typename T> void fast_hadamard_transform(vector<T> &a, bool inverse = false) { int n = a.size(); assert((n & (n - 1)) == 0); for (int i = 1; i < n; i <<= 1) { for (int j = 0; j < n; j++) { if (!(j & i)) { T x = a[j], y = a[j | i]; a[j] = x + y, a[j | i] = x - y; } } } if (inverse) { T inv = T(1) / T(n); for (auto &e : a) e *= inv; } } template <typename T> vector<T> bitwise_and_convolve(vector<T> a, vector<T> b) { int n = a.size(); assert((int)b.size() == n && (n & (n - 1)) == 0); fast_zeta_transform(a, true), fast_zeta_transform(b, true); for (int i = 0; i < n; i++) a[i] *= b[i]; fast_mobius_transform(a, true); return a; } template <typename T> vector<T> bitwise_or_convolve(vector<T> a, vector<T> b) { int n = a.size(); assert((int)b.size() == n && (n & (n - 1)) == 0); fast_zeta_transform(a, false), fast_zeta_transform(b, false); for (int i = 0; i < n; i++) a[i] *= b[i]; fast_mobius_transform(a, false); return a; } template <typename T> vector<T> bitwise_xor_convolve(vector<T> a, vector<T> b) { int n = a.size(); assert((int)b.size() == n && (n & (n - 1)) == 0); fast_hadamard_transform(a), fast_hadamard_transform(b); for (int i = 0; i < n; i++) a[i] *= b[i]; fast_hadamard_transform(a, true); return a; } template <typename T> vector<T> subset_convolve(const vector<T> &a, const vector<T> &b) { int n = a.size(); assert((int)b.size() == n && (n & (n - 1)) == 0); int k = __builtin_ctz(n); vector<vector<T>> A(k + 1, vector<T>(n, 0)), B(k + 1, vector<T>(n, 0)), C(k + 1, vector<T>(n, 0)); for (int i = 0; i < n; i++) { int t = __builtin_popcount(i); A[t][i] = a[i], B[t][i] = b[i]; } for (int i = 0; i <= k; i++) fast_zeta_transform(A[i], false), fast_zeta_transform(B[i], false); for (int i = 0; i <= k; i++) { for (int j = 0; j <= k - i; j++) { for (int l = 0; l < n; l++) C[i + j][l] += A[i][l] * B[j][l]; } } for (int i = 0; i <= k; i++) fast_mobius_transform(C[i], false); vector<T> c(n); for (int i = 0; i < n; i++) c[i] = C[__builtin_popcount(i)][i]; return c; } template <typename T> vector<T> multiple_subset_convolve(const vector<T> &a) { int n = a.size(); assert((n & (n - 1)) == 0); assert(a[0] == T(0)); vector<T> b(1, 1); for (int k = 1; k < n; k <<= 1) { vector<T> a_sub(begin(a) + k, begin(a) + k * 2); vector<T> b_sub = subset_convolve(a_sub, b); b.insert(end(b), begin(b_sub), end(b_sub)); } return b; } using ll = long long; int main() { int N, M; cin >> N >> M; vector<int> es(N, 0); for (int i = 0; i < M; i++) { int u, v; cin >> u >> v; u--, v--; es[u] |= 1 << v; es[v] |= 1 << u; } auto cut_size = [&](int S, int T) { int ret = 0; for (int i = 0; i < N; i++) { if (!(S >> i & 1)) continue; ret += __builtin_popcount(es[i] & T); } return ret; }; vector<vector<ll>> dp(N, vector<ll>(1 << N, 0)); for (int s = 0; s < N; s++) { vector<vector<ll>> dp1(1 << N, vector<ll>(N, 0)); dp1[1 << s][s] = 1; for (int S = 0; S < (1 << N); S++) { for (int t = 0; t < N; t++) { if (__builtin_popcount(S) != 2 && (es[t] >> s) & 1) dp[0][S] += dp1[S][t]; for (int nt = s; nt < N; nt++) { if ((S >> nt) & 1) continue; if (!(es[t] >> nt & 1)) continue; int nS = S | (1 << nt); dp1[nS][nt] += dp1[S][t]; } } } dp[0][1 << s] += 1; } for (int S = 0; S < (1 << N); S++) { if (__builtin_popcount(S) >= 3) { assert(dp[0][S] % 2 == 0); dp[0][S] /= 2; } } for (int S = 1; S < (1 << N); S++) { for (int X = (S - 1) & S; X > 0; X--, X &= S) { int Y = S & ~X; if (X < Y) continue; int c = cut_size(X, Y); for (int i = 0; i < N; i++) { for (int j = 0; j < N; j++) { if (i + j < N - 1) dp[i + j + 1][S] += dp[i][X] * dp[j][Y] * c; } } } for (int i = 1; i < N; i++) { assert(dp[i][S] % i == 0); dp[i][S] /= i; } } // for (int i = 0; i < N; i++) print(dp[i]); vector<ll> a(1 << N, 0); for (int S = 0; S < (1 << N); S++) { for (int i = 0; i < N; i++) a[S] += dp[i][S]; } // print(a); auto b = multiple_subset_convolve(a); cout << b.back() << '\n'; }