結果
問題 | No.1937 Various Tournament |
ユーザー |
|
提出日時 | 2023-07-22 09:59:01 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 790 ms / 2,000 ms |
コード長 | 2,111 bytes |
コンパイル時間 | 2,054 ms |
コンパイル使用メモリ | 213,124 KB |
最終ジャッジ日時 | 2025-02-15 17:58:55 |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 47 |
ソースコード
#include <bits/stdc++.h>#include <variant>#define rep2(i, k, n) for (i64 i = (i64)(k); i < (i64)(n); i++)#define rep(i, n) rep2(i, 0, n)#define all(x) begin(x), end(x)#ifdef ENV_LOCAL#define dump \if (1) cerr#else#define dump \if (0) cerr#endifusing namespace std;using namespace std::string_literals;using i32 = int32_t;using i64 = int64_t;using f64 = double;using f80 = long double;using vi32 = vector<i32>;using vi64 = vector<i64>;namespace std {bool operator<(const bitset<16>& lhs, const bitset<16>& rhs) {return lhs.to_ulong() < rhs.to_ulong();}} // namespace stdi64 permanent(const vector<bitset<16>>& s) {i64 n = size(s);i64 ans = 0;rep(i, 1 << n) {i64 prod = 1;rep(j, n) {i64 sum = __builtin_popcount(i & s[j].to_ulong());prod *= sum;}if (__builtin_popcount(i) % 2) prod *= -1;ans += prod;}if (n % 2) ans *= -1;return ans;}map<vector<bitset<16>>, vi64> cache;vi64 solve(const vector<bitset<16>>& s) {i64 n = size(s);if (n == 1) {return {1};}if (n == 2) {if (s[0][1]) {return {2, 0};} else {return {0, 2};}}if (cache.count(s)) {return cache.at(s);}vi64 ans(n);rep(i, 1 << n) {if (__builtin_popcount(i) != n / 2) continue;vi32 winner;vi32 loser;rep(j, n) {if ((i >> j) & 1) {winner.push_back(j);} else {loser.push_back(j);}}vector<bitset<16>> mat(n / 2);rep(j, n / 2) rep(k, n / 2) { mat[j][k] = s[winner[j]][loser[k]]; }i64 cnt = permanent(mat);vector<bitset<16>> ss(n / 2);rep(j, n / 2) rep(k, n / 2) { ss[j][k] = s[winner[j]][winner[k]]; }auto sans = solve(ss);cnt *= (1 << (n / 2));rep(j, n / 2) { ans[winner[j]] += cnt * sans[j]; }}cache[s] = ans;return ans;}int main() {ios::sync_with_stdio(false);cin.tie(nullptr);i64 n;cin >> n;vector<bitset<16>> s(n);rep(i, n) rep(j, n) {i64 b;cin >> b;s[i][j] = b;}vi64 ans = solve(s);rep(i, n) { cout << ans[i] << endl; }return 0;}