結果
問題 | No.1640 簡単な色塗り |
ユーザー | harurun |
提出日時 | 2021-06-16 21:38:41 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,444 bytes |
コンパイル時間 | 1,048 ms |
コンパイル使用メモリ | 96,876 KB |
実行使用メモリ | 50,844 KB |
最終ジャッジ日時 | 2024-06-29 14:42:14 |
合計ジャッジ時間 | 32,840 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 3 ms
13,756 KB |
testcase_01 | AC | 3 ms
6,940 KB |
testcase_02 | AC | 3 ms
6,940 KB |
testcase_03 | AC | 3 ms
6,944 KB |
testcase_04 | AC | 236 ms
33,924 KB |
testcase_05 | AC | 253 ms
42,900 KB |
testcase_06 | AC | 3 ms
6,940 KB |
testcase_07 | AC | 3 ms
6,940 KB |
testcase_08 | AC | 3 ms
6,940 KB |
testcase_09 | AC | 3 ms
6,940 KB |
testcase_10 | AC | 277 ms
27,176 KB |
testcase_11 | AC | 220 ms
23,160 KB |
testcase_12 | AC | 184 ms
21,184 KB |
testcase_13 | AC | 470 ms
39,284 KB |
testcase_14 | AC | 488 ms
39,624 KB |
testcase_15 | AC | 127 ms
16,528 KB |
testcase_16 | AC | 160 ms
19,396 KB |
testcase_17 | AC | 367 ms
33,808 KB |
testcase_18 | AC | 23 ms
7,424 KB |
testcase_19 | AC | 187 ms
20,912 KB |
testcase_20 | AC | 266 ms
26,448 KB |
testcase_21 | AC | 208 ms
22,588 KB |
testcase_22 | AC | 17 ms
6,940 KB |
testcase_23 | AC | 297 ms
28,176 KB |
testcase_24 | AC | 64 ms
11,456 KB |
testcase_25 | AC | 186 ms
21,324 KB |
testcase_26 | AC | 343 ms
31,600 KB |
testcase_27 | AC | 119 ms
15,952 KB |
testcase_28 | AC | 452 ms
38,288 KB |
testcase_29 | AC | 346 ms
34,760 KB |
testcase_30 | AC | 63 ms
11,268 KB |
testcase_31 | TLE | - |
testcase_32 | AC | 1,344 ms
41,696 KB |
testcase_33 | AC | 626 ms
29,412 KB |
testcase_34 | AC | 1,132 ms
36,052 KB |
testcase_35 | AC | 659 ms
31,072 KB |
testcase_36 | AC | 63 ms
11,004 KB |
testcase_37 | AC | 104 ms
14,048 KB |
testcase_38 | AC | 1,709 ms
45,208 KB |
testcase_39 | AC | 289 ms
21,088 KB |
testcase_40 | AC | 319 ms
21,492 KB |
testcase_41 | AC | 1,206 ms
37,696 KB |
testcase_42 | AC | 402 ms
24,988 KB |
testcase_43 | AC | 420 ms
26,904 KB |
testcase_44 | AC | 423 ms
25,624 KB |
testcase_45 | AC | 257 ms
21,332 KB |
testcase_46 | AC | 77 ms
12,480 KB |
testcase_47 | AC | 40 ms
9,512 KB |
testcase_48 | AC | 1,870 ms
44,520 KB |
testcase_49 | AC | 13 ms
6,940 KB |
testcase_50 | AC | 3 ms
6,940 KB |
testcase_51 | AC | 3 ms
6,940 KB |
testcase_52 | TLE | - |
testcase_53 | TLE | - |
07_evil_01.txt | AC | 1,462 ms
83,460 KB |
07_evil_02.txt | TLE | - |
ソースコード
#include <algorithm> #include <atcoder/internal_queue> #include <cassert> #include <limits> #include <queue> #include <vector> #include <time.h> #include <chrono> #include <sys/time.h> #include <iostream> using namespace std; using namespace atcoder; #define ll long long #define INF 1000000000000000000 using std::cout; using std::endl; using std::chrono::duration_cast; using std::chrono::milliseconds; using std::chrono::seconds; using std::chrono::system_clock; //namespace atcoder { ostream& operator<<(ostream& os,vector<int>& a){ for(int i:a){ os<<i<<" "; } return os<<"\n"; } vector<ll> ans(200010,-1); struct _edge { int to, rev; ll cap; int index; }; template <class Cap> struct mf_graph { public: mf_graph() : _n(0) {} mf_graph(int n) : _n(n), g(n) {} int add_edge(int from, int to, Cap cap,int index) { assert(0 <= from && from < _n); assert(0 <= to && to < _n); assert(0 <= cap); int m = int(pos.size()); pos.push_back({from, int(g[from].size())}); int from_id = int(g[from].size()); int to_id = int(g[to].size()); if (from == to) to_id++; g[from].push_back(_edge{to, to_id, cap, index}); g[to].push_back(_edge{from, from_id, 0, index}); return m; } struct edge { int from, to; Cap cap, flow; }; edge get_edge(int i) { int m = int(pos.size()); assert(0 <= i && i < m); auto _e = g[pos[i].first][pos[i].second]; auto _re = g[_e.to][_e.rev]; return edge{pos[i].first, _e.to, _e.cap + _re.cap, _re.cap}; } Cap flow(int s, int t) { return flow(s, t, std::numeric_limits<Cap>::max()); } Cap flow(int s, int t, Cap flow_limit) { assert(0 <= s && s < _n); assert(0 <= t && t < _n); assert(s != t); std::vector<int> level(_n), iter(_n); internal::simple_queue<int> que; auto bfs = [&]() { std::fill(level.begin(), level.end(), -1); level[s] = 0; que.clear(); que.push(s); while (!que.empty()) { int v = que.front(); que.pop(); for (auto e : g[v]) { if (e.cap == 0 || level[e.to] >= 0) continue; level[e.to] = level[v] + 1; if (e.to == t) return; que.push(e.to); } } }; auto dfs = [&](auto self, int v, Cap up) { if (v == s) return up; Cap res = 0; int level_v = level[v]; for (int& i = iter[v]; i < int(g[v].size()); i++) { //cout<<"i:"<<i<<endl; _edge& e = g[v][i]; if (level_v <= level[e.to] || g[e.to][e.rev].cap == 0) continue; Cap d = self(self, e.to, std::min(up - res, g[e.to][e.rev].cap)); if (d <= 0) continue; g[v][i].cap += d; g[e.to][e.rev].cap -= d; // if(e.index!=-1){ // ans[e.index] = e.to+1; // cout<<"ans update"<<endl; // } // cout<<"v:"<<v<<" "<<i<<endl; // cout<<e.to<<" "<<e.rev<<" "<<e.cap<<" "<<e.index<<endl<<endl; res += d; if (res == up) break; } return res; }; Cap flow = 0; while (flow < flow_limit) { bfs(); //cout<<level<<endl; if (level[t] == -1) break; std::fill(iter.begin(), iter.end(), 0); while (flow < flow_limit) { Cap f = dfs(dfs, t, flow_limit - flow); if (!f) break; flow += f; } } return flow; } //private: int _n; std::vector<std::pair<int, int>> pos; std::vector<std::vector<_edge>> g; }; ostream& operator<<(ostream& os,const _edge& a){ return os<<a.to<<" "<<a.rev<<" "<<a.cap<<" "<<a.index; } //} // namespace atcoder int main(){ auto start = duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count(); ll N,A,B; cin>>N; //Dinic F(200002); //Dinic F; //cout<<"INF:"<<F.INF<<endl; mf_graph<ll> F(2*N+2); for(int i=0;i<N;i++){ //cerr<<i<<endl; cin>>A>>B; A--;B--; /* F.add_edge(200000,i,1); F.add_edge(i,100000+A,1); if(A!=B)F.add_edge(i,100000+B,1); F.add_edge(100000+i,200001,1); */ F.add_edge(2*N,i,1,-1); F.add_edge(i,N+A,1,i); if(A!=B)F.add_edge(i,N+B,1,i); F.add_edge(N+i,2*N+1,1,-1); } //cerr<<"edge added\n"; //ll cnt=F.max_flow(200000,200001); ll cnt=F.flow(2*N,2*N+1); //cout<<cnt<<endl; if(cnt!=N){ cout<<"No\n"; return 0; } //ここから構築 cout<<"Yes\n"; /* for(int i=0;i<N;i++){ cout<<ans[i]<<endl; } */ for(int i=N;i<2*N;i++){ ll s=F.g.at(i).size(); //cout<<i<<endl; for(int j=0;j<s;j++){ if(F.g.at(i).at(j).cap!=0){ ans.at(F.g.at(i).at(j).to)=i-N+1; } //cout<<F.g.at(i).at(j)<<endl; } //cout<<endl; //cout<<ans.at(i)<<endl; } for(int i=0;i<N;i++){ cout<<ans.at(i)<<endl; } auto end= duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count(); cerr<<end-start<<endl; return 0; }