結果
問題 | No.2536 同値性と充足可能性 |
ユーザー | fuppy_kyopro |
提出日時 | 2023-11-10 21:46:22 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 141 ms / 2,000 ms |
コード長 | 6,329 bytes |
コンパイル時間 | 4,014 ms |
コンパイル使用メモリ | 239,372 KB |
実行使用メモリ | 18,176 KB |
最終ジャッジ日時 | 2024-09-26 01:21:45 |
合計ジャッジ時間 | 6,375 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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 3 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 4 ms
5,376 KB |
testcase_21 | AC | 4 ms
5,376 KB |
testcase_22 | AC | 4 ms
5,376 KB |
testcase_23 | AC | 24 ms
5,376 KB |
testcase_24 | AC | 25 ms
5,376 KB |
testcase_25 | AC | 114 ms
15,744 KB |
testcase_26 | AC | 125 ms
17,152 KB |
testcase_27 | AC | 113 ms
14,976 KB |
testcase_28 | AC | 124 ms
17,664 KB |
testcase_29 | AC | 122 ms
17,408 KB |
testcase_30 | AC | 141 ms
18,176 KB |
ソースコード
//* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> // #include <atcoder/lazysegtree> using namespace std; // using namespace atcoder; // #define _GLIBCXX_DEBUG #define DEBUG(x) cerr << #x << ": " << x << endl; #define DEBUG_VEC(v) \ cerr << #v << ":"; \ for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \ cerr << " " << v[iiiiiiii]; \ cerr << endl; #define DEBUG_MAT(v) \ cerr << #v << endl; \ for (int iv = 0; iv < v.size(); iv++) { \ for (int jv = 0; jv < v[iv].size(); jv++) { \ cerr << v[iv][jv] << " "; \ } \ cerr << endl; \ } typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector<vector<int>> #define vll vector<vector<ll>> #define vs vector<string> #define pii pair<int, int> #define pis pair<int, string> #define psi pair<string, int> #define pll pair<ll, ll> template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> ostream &operator<<(ostream &os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep1(i, n) for (int i = 1; i <= (int)(n); i++) #define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define rrep1(i, n) for (int i = (int)(n); i > 0; i--) #define REP(i, a, b) for (int i = a; i < b; i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(), c.end() void YES(bool t = true) { cout << (t ? "YES" : "NO") << endl; } void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; } void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; } void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; } void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; } void no(bool t = true) { cout << (t ? "no" : "yes") << endl; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (a > b) { a = b; return 1; } return 0; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 0, -1, 1}, dy = {-1, 1, 0, 0}; vi dx2 = {1, 1, 0, -1, -1, -1, 0, 1}, dy2 = {0, 1, 1, 1, 0, -1, -1, -1}; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); } } setup_io; // const ll MOD = 1000000007; // const ll MOD = 998244353; // #define mp make_pair // #define endl '\n' class UnionFind { private: vi par_; // �e vi ran_; // �̐[�� vi num_; // �v�f�� vi edge_num_; // �v�f�� public: int n; int g; // group�� UnionFind(int _n) { n = _n; g = n; par_.resize(n); ran_.resize(n); num_.resize(n); edge_num_.resize(n); for (int i = 0; i < n; i++) { par_[i] = i; ran_[i] = 0; num_[i] = 1; edge_num_[i] = 0; } } // �̍������߂� int find(int x) { if (par_[x] == x) { return x; } else { return par_[x] = find(par_[x]); } } // x��y�̑�����W���� void unite(int x, int y) { x = find(x); y = find(y); int numsum = num_[x] + num_[y]; int edge_numsum = edge_num_[x] + edge_num_[y]; if (x == y) { edge_num_[x]++; return; } if (ran_[x] < ran_[y]) { par_[x] = y; } else { par_[y] = x; if (ran_[x] == ran_[y]) { ran_[x]++; } } num_[x] = num_[y] = numsum; edge_num_[x] = edge_num_[y] = edge_numsum + 1; g--; } // x��y�������W���ɑ����邩�ۂ� bool same(int x, int y) { return find(x) == find(y); } int num(int x) { return num_[find(x)]; } int edge_num(int x) { return edge_num_[find(x)]; } }; signed main() { int n, m; cin >> n >> m; UnionFind uf(2 * n); rep(i, m) { int u, v; string s; cin >> u >> s >> v; u--; v--; if (s.size() == 4) { uf.unite(u, v); uf.unite(u + n, v + n); } else { uf.unite(u, v + n); uf.unite(u + n, v); } } rep(i, n) { if (uf.same(i, i + n)) { No(); return 0; } } Yes(); set<int> root; rep(i, 2 * n) { if (i != uf.find(i)) { continue; } root.insert(i); } map<int, int> mp; rep(i, n) { int r = uf.find(i); mp[r]++; } set<int> good_root; for (auto r : root) { int v; if (r < n) { v = r + n; } else { v = r - n; } if (mp[v] > mp[r]) { good_root.insert(v); } else if (mp[v] == mp[r]) { if (v > r) { good_root.insert(v); } } } vi ans; rep(i, n) { if (good_root.count(uf.find(i))) { ans.push_back(i); } } cout << ans.size() << endl; rep(i, ans.size()) { cout << ans[i] + 1 << " \n"[i == ans.size() - 1]; } }