結果
問題 | No.3034 コーエン-マコーレー抽象単体複体 |
ユーザー |
👑 ![]() |
提出日時 | 2025-02-21 22:53:37 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 1,795 ms / 2,000 ms |
コード長 | 5,260 bytes |
コンパイル時間 | 3,063 ms |
コンパイル使用メモリ | 221,012 KB |
実行使用メモリ | 63,616 KB |
最終ジャッジ日時 | 2025-02-21 22:54:02 |
合計ジャッジ時間 | 22,244 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 36 |
ソースコード
#include <bits/stdc++.h>using namespace std;using ll=long long;using ld=long double;const ll ILL=2167167167167167167;const int INF=2100000000;#define rep(i,a,b) for (int i=(int)(a);i<(int)(b);i++)#define all(p) p.begin(),p.end()template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;template<class T> int LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}template<class T> int UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}template<class T> bool chmin(T &a,T b){if(b<a){a=b;return 1;}else return 0;}template<class T> bool chmax(T &a,T b){if(a<b){a=b;return 1;}else return 0;}template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});}bool yneos(bool a,bool upp=false){if(a){cout<<(upp?"YES\n":"Yes\n");}else{cout<<(upp?"NO\n":"No\n");}return a;}template<class T> void vec_out(vector<T> &p,int ty=0){if(ty==2){cout<<'{';for(int i=0;i<(int)p.size();i++){if(i){cout<<",";}cout<<'"'<<p[i]<<'"';}cout<<"}\n";}else{if(ty==1){cout<<p.size()<<"\n";}for(int i=0;i<(int)(p.size());i++){if(i) cout<<" ";cout<<p[i];}cout<<"\n";}}template<class T> T vec_min(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmin(ans,x);return ans;}template<class T> T vec_max(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmax(ans,x);return ans;}template<class T> T vec_sum(vector<T> &a){T ans=T(0);for(auto &x:a) ans+=x;return ans;}int pop_count(long long a){int res=0;while(a){res+=(a&1),a>>=1;}return res;}template<class T> T square(T a){return a * a;}namespace po167{struct UF{using _F = int;int _n;std::vector<_F> wei;std::vector<int> q;int component;UF(int n):_n(n), wei(n), component(n), par(n){for (int i = 0; i < n; i++){wei[i] =1, par[i] = i;}}void intialize(){for (auto x : q){wei[root(x)] = 1;par[x] = x;}component = (int)par.size();q = {};}//根っこを返すint root(int a){assert(0 <= a && a < _n);if (a == par[a]) return a;return par[a] = root(par[a]);}//trueなら1,falseなら0int same(int a, int b){assert(0 <= a && a < _n);assert(0 <= b && b < _n);if(root(a) == root(b)) return 1;else return 0;}_F size(int a){return wei[root(a)];}//a,bが違う根っこの元なら結合する,結合したらtrueを返すbool unite(int a,int b){a = root(a), b = root(b);if (a == b) return false;if (wei[a] < wei[b]) std::swap(a, b);par[b] = a;q.push_back(b);wei[a] += wei[b];component--;return true;}private:std::vector<int> par;};}using po167::UF;void solve();// CITRUS CURIO CITY / FREDERICint main() {ios::sync_with_stdio(false);cin.tie(nullptr);int t = 1;// cin >> t;rep(i, 0, t) solve();}void solve(){int N, M;cin >> N >> M;UF em(N);vector<UF> T(N + 1, em);vector<set<int>> s(N + 1);const int L = 3000;vector<bitset<L>> men(L);int P = 0;set<pair<int ,int>> sen;int R = 0;map<pair<int, int>, int> m;auto get = [&](int a, int b) -> int {if (!m.count({a, b})){m[{a, b}] = m.size();}return m[{a, b}];};auto add = [&](int x, int y) -> void {if (sen.count({x, y})) return;sen.insert({x, y});if (!T[N].unite(x, y)) R++;};rep(i, 0, M){int a, b, c;cin >> a >> b >> c;a--, b--, c--;bitset<L> tmp;tmp[get(a, b)] = 1, tmp[get(a, c)] = 1, tmp[get(b, c)] = 1;rep(j, 0, (int)m.size()){if (tmp[j]){if (men[j][j]) tmp ^= men[j];else{men[j] = tmp;P++;break;}}}add(a, b);add(b, c);add(a, c);rep(j, 0, N + 1){if (j != a){s[j].insert(a);}if (j != b){s[j].insert(b);}if (j != c){s[j].insert(c);}if (j != a && j != b){T[j].unite(a, b);}if (j != b && j != c){T[j].unite(b, c);}if (j != c && j != a){T[j].unite(a, c);}}if (T[N].component - 1 + (int)s[N].size() != N){cout << "CO\n";}else if (R != P){// cout << P << " " << R << "\n";cout << "H1\n";}else{bool ok = true;rep(j, 0, N){if (T[j].component - 1 + (int)s[j].size() != N) ok = false;}cout << (ok ? "CM\n" : "LK\n");}}}