結果
問題 | No.2780 The Bottle Imp |
ユーザー | 👑 potato167 |
提出日時 | 2024-06-07 21:37:31 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 52 ms / 2,000 ms |
コード長 | 6,019 bytes |
コンパイル時間 | 2,534 ms |
コンパイル使用メモリ | 216,204 KB |
実行使用メモリ | 23,244 KB |
最終ジャッジ日時 | 2024-06-08 10:27:50 |
合計ジャッジ時間 | 4,822 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 1 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 32 ms
10,552 KB |
testcase_08 | AC | 33 ms
10,560 KB |
testcase_09 | AC | 31 ms
10,536 KB |
testcase_10 | AC | 31 ms
10,528 KB |
testcase_11 | AC | 30 ms
10,528 KB |
testcase_12 | AC | 51 ms
18,180 KB |
testcase_13 | AC | 52 ms
18,304 KB |
testcase_14 | AC | 19 ms
5,632 KB |
testcase_15 | AC | 18 ms
5,632 KB |
testcase_16 | AC | 19 ms
5,632 KB |
testcase_17 | AC | 19 ms
5,504 KB |
testcase_18 | AC | 19 ms
5,632 KB |
testcase_19 | AC | 19 ms
5,760 KB |
testcase_20 | AC | 19 ms
5,632 KB |
testcase_21 | AC | 20 ms
5,632 KB |
testcase_22 | AC | 13 ms
5,632 KB |
testcase_23 | AC | 18 ms
5,632 KB |
testcase_24 | AC | 26 ms
9,232 KB |
testcase_25 | AC | 43 ms
13,696 KB |
testcase_26 | AC | 24 ms
7,680 KB |
testcase_27 | AC | 17 ms
8,704 KB |
testcase_28 | AC | 17 ms
8,576 KB |
testcase_29 | AC | 19 ms
9,868 KB |
testcase_30 | AC | 16 ms
9,036 KB |
testcase_31 | AC | 33 ms
14,464 KB |
testcase_32 | AC | 10 ms
5,376 KB |
testcase_33 | AC | 39 ms
18,552 KB |
testcase_34 | AC | 51 ms
23,244 KB |
testcase_35 | AC | 8 ms
5,376 KB |
testcase_36 | AC | 2 ms
5,376 KB |
testcase_37 | AC | 1 ms
5,376 KB |
testcase_38 | AC | 8 ms
5,376 KB |
testcase_39 | AC | 28 ms
13,056 KB |
testcase_40 | AC | 28 ms
13,056 KB |
testcase_41 | AC | 27 ms
13,056 KB |
testcase_42 | AC | 2 ms
5,376 KB |
testcase_43 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> #pragma GCC optimize("unroll-loops") using namespace std; using std::cout; using std::cin; using std::endl; using ll=long long; using ld=long double; const ll ILL=2167167167167167167; const int INF=2100000000; const int mod=998244353; #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> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();} template<class T> ll 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(a>b){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=0){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> bool inside(T l,T x,T r){return l<=x&&x<r;} namespace po167{ struct SCC{ std::vector<std::vector<int>> G; std::vector<std::vector<int>> G_rev; int size; SCC(int n):G(n),G_rev(n),size(n){} void clear(){ for(auto &x:G) x.clear(); for(auto &x:G_rev) x.clear(); } void reserve(int ind,size_t n_){ assert(ind<size); G[ind].reserve(n_); G_rev[ind].reserve(n_); } int add_ver(){ G.push_back({}); G_rev.push_back({}); size++; return size-1; } void add_edge(int from,int to){ assert(0<=to&&to<size); assert(0<=from&&from<size); G[from].push_back(to); G_rev[to].push_back(from); } void dfs1(std::vector<int> &order,std::vector<int> &seen,int ind,int &now){ if(seen[ind]!=0) return; seen[ind]=-1; for(auto x:G[ind]){ dfs1(order,seen,x,now); } order[now]=ind; now++; } void dfs2(std::vector<int> &seen,int ind,int rank){ if(seen[ind]!=-1) return; seen[ind]=rank; for(auto x:G_rev[ind]){ dfs2(seen,x,rank); } } std::vector<std::vector<int>> tp_sort(){ std::vector<int> seen(size,0),order(size); int now=0; for(int i=0;i<size;i++) dfs1(order,seen,i,now); now=0; for(int i=size-1;i>=0;i--){ if(seen[order[i]]==-1){ dfs2(seen,order[i],now); now++; } } std::vector<std::vector<int>> ans(now); for(int i=0;i<size;i++){ ans[seen[i]].push_back(i); } return ans; } std::vector<int> for_two_sat(){ std::vector<int> seen(size,0),order(size); int now=0; for(int i=0;i<size;i++) dfs1(order,seen,i,now); now=0; for(int i=size-1;i>=0;i--){ if(seen[order[i]]==-1){ dfs2(seen,order[i],now); now++; } } return seen; } }; struct two_SAT{ po167::SCC graph; std::vector<bool> ans; bool exists=false; int size; two_SAT(int n):graph(2*n),ans(n),size(n){} void add_clause(int i,bool f,int j,bool g){ graph.add_edge(i*2+(!f),j*2+(g)); graph.add_edge(j*2+(!g),i*2+(f)); } void clear(){ graph.clear(); exists=false; } void reserve(int ind,size_t n_){ assert(ind<size); graph.reserve(ind*2,n_); graph.reserve(ind*2+1,n_); } void one_true_in_group(std::vector<std::pair<int,int>> &p){ int ind; for(int i=0;i<(int)(p.size())-1;i++){ ind=graph.add_ver(); graph.add_ver(); ind/=2; add_clause(ind,1,p[i].first,p[i].second^1); add_clause(ind,0,p[i+1].first,p[i+1].second^1); if(i){ add_clause(ind-1,0,ind,1); } ans.push_back(false); size++; } } bool build(){ auto rank=graph.for_two_sat(); exists=true; for(int i=0;i<size;i++){ if(rank[i*2]==rank[i*2+1]){ exists=false; break; } ans[i]=(rank[i*2]<rank[i*2+1]); } return exists; } }; } using po167::SCC; using po167::two_SAT; void solve(); // oddloop int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int t = 1; // cin >> t; rep(i, 0, t) solve(); } void solve(){ int N; cin >> N; SCC S(N); rep(i, 0, N){ int M; cin >> M; while (M--){ int a; cin >> a; a--; S.add_edge(i, a); } } auto p = S.tp_sort(); vector<int> inv(N); rep(i, 0, p.size()) for (auto x : p[i]) inv[x] = i; int ind = 0; vector<int> seen(N); seen[p[0][0]] = 1; bool ok = 1; for (auto v : p){ ok = 0; for (auto x : v){ if (seen[x]) ok = 1; } if (!ok) break; int a = -1; for (auto x : v) for (auto y : S.G[x]) if (inv[y] != ind){ if (a == -1 || inv[a] > inv[y]) a = y; } ind++; if (a != -1) seen[a] = 1; } if (inv[0]) ok = 0; yneos(ok); }