結果
問題 | No.1069 電柱 / Pole (Hard) |
ユーザー | bin101 |
提出日時 | 2022-07-07 02:45:36 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 120 ms / 2,000 ms |
コード長 | 4,663 bytes |
コンパイル時間 | 2,829 ms |
コンパイル使用メモリ | 212,776 KB |
実行使用メモリ | 15,360 KB |
最終ジャッジ日時 | 2024-07-23 15:09:54 |
合計ジャッジ時間 | 5,037 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 120 ms
7,808 KB |
testcase_05 | AC | 96 ms
15,360 KB |
testcase_06 | AC | 5 ms
6,940 KB |
testcase_07 | AC | 6 ms
6,940 KB |
testcase_08 | AC | 4 ms
6,940 KB |
testcase_09 | AC | 5 ms
6,948 KB |
testcase_10 | AC | 3 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 4 ms
6,940 KB |
testcase_14 | AC | 3 ms
6,944 KB |
testcase_15 | AC | 3 ms
6,944 KB |
testcase_16 | AC | 3 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 3 ms
6,944 KB |
testcase_19 | AC | 6 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 3 ms
6,940 KB |
testcase_22 | AC | 3 ms
6,940 KB |
testcase_23 | AC | 6 ms
6,944 KB |
testcase_24 | AC | 5 ms
6,944 KB |
testcase_25 | AC | 6 ms
6,944 KB |
testcase_26 | AC | 5 ms
6,944 KB |
testcase_27 | AC | 5 ms
6,940 KB |
testcase_28 | AC | 4 ms
6,940 KB |
testcase_29 | AC | 3 ms
6,944 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,944 KB |
testcase_32 | AC | 2 ms
6,944 KB |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | AC | 2 ms
6,944 KB |
testcase_35 | AC | 2 ms
6,944 KB |
testcase_36 | AC | 2 ms
6,940 KB |
testcase_37 | AC | 3 ms
6,940 KB |
testcase_38 | AC | 3 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,940 KB |
testcase_40 | AC | 2 ms
6,940 KB |
testcase_41 | AC | 3 ms
6,940 KB |
testcase_42 | AC | 2 ms
6,940 KB |
testcase_43 | AC | 2 ms
6,940 KB |
testcase_44 | AC | 4 ms
6,944 KB |
testcase_45 | AC | 4 ms
6,940 KB |
testcase_46 | AC | 4 ms
6,940 KB |
testcase_47 | AC | 4 ms
6,944 KB |
testcase_48 | AC | 5 ms
6,940 KB |
testcase_49 | AC | 4 ms
6,940 KB |
testcase_50 | AC | 2 ms
6,940 KB |
testcase_51 | AC | 4 ms
6,944 KB |
testcase_52 | AC | 2 ms
6,940 KB |
testcase_53 | AC | 4 ms
6,944 KB |
testcase_54 | AC | 2 ms
6,940 KB |
testcase_55 | AC | 2 ms
6,944 KB |
testcase_56 | AC | 2 ms
6,940 KB |
testcase_57 | AC | 2 ms
6,940 KB |
testcase_58 | AC | 2 ms
6,940 KB |
testcase_59 | AC | 2 ms
6,944 KB |
testcase_60 | AC | 2 ms
6,940 KB |
testcase_61 | AC | 2 ms
6,940 KB |
testcase_62 | AC | 2 ms
6,944 KB |
testcase_63 | AC | 2 ms
6,940 KB |
testcase_64 | AC | 2 ms
6,940 KB |
testcase_65 | AC | 2 ms
6,940 KB |
testcase_66 | AC | 2 ms
6,944 KB |
testcase_67 | AC | 2 ms
6,940 KB |
testcase_68 | AC | 2 ms
6,940 KB |
testcase_69 | AC | 3 ms
6,940 KB |
testcase_70 | AC | 3 ms
6,940 KB |
testcase_71 | AC | 3 ms
6,944 KB |
testcase_72 | AC | 2 ms
6,944 KB |
testcase_73 | AC | 3 ms
6,940 KB |
testcase_74 | AC | 3 ms
6,944 KB |
testcase_75 | AC | 3 ms
6,944 KB |
testcase_76 | AC | 4 ms
6,940 KB |
testcase_77 | AC | 5 ms
6,940 KB |
testcase_78 | AC | 2 ms
6,944 KB |
testcase_79 | AC | 4 ms
6,940 KB |
testcase_80 | AC | 6 ms
6,944 KB |
testcase_81 | AC | 3 ms
6,944 KB |
testcase_82 | AC | 4 ms
6,944 KB |
ソースコード
#include<bits/stdc++.h> using namespace std; using ll=long long int; //using Int=__int128; #define ALL(A) A.begin(),A.end() template<typename T1,typename T2> bool chmin(T1 &a,T2 b){if(a<=b)return 0; a=b; return 1;} template<typename T1,typename T2> bool chmax(T1 &a,T2 b){if(a>=b)return 0; a=b; return 1;} template<typename T> constexpr int bitUP(T x,int a){return (x>>a)&1;} template<typename T > struct edge { int to; T cost; edge()=default; edge(int to, T cost) : to(to), cost(cost) {} }; template<typename T> using WeightGraph=vector<vector<edge<T>>>; //https://qiita.com/nariaki3551/items/821dc6ffdc552d3d5f22 //https://yamakuramun.info/2021/02/24/309/ template<typename T> vector<pair<T,vector<int>>> YenAlgorithm(const WeightGraph<T> &graph,int k,int s,int t){ assert(k>=1); int N=graph.size(); const auto max_inf = numeric_limits< T >::max(); const auto min_inf = numeric_limits< T >::lowest(); assert(0<=s and s<N); assert(0<=t and t<N); using P=pair<T,vector<int>>; map<vector<int>,unordered_set<int>> ban_edge; //Pを返す auto dijkstra=[&](const vector<int> &spur_path){ using pti=pair<T,int>; vector<pti> dist(N,pti(max_inf,-1)); for(int v:spur_path){ dist[v].first=min_inf; } priority_queue<pti,vector<pti>,greater<pti>> que; int start=s; if(spur_path.size()) start=spur_path.back(); dist[start].first=0; auto &ban=ban_edge[spur_path]; que.emplace(0,start); while(!que.empty()){ T cost; int v; tie(cost,v)=que.top(); if(v==t) break; que.pop(); if(dist[v].first<cost) continue; for(auto &e:graph[v]){ if(v==start and ban.count(e.to)) continue; auto next_cost=cost+e.cost; if(chmin(dist[e.to].first,next_cost)){ dist[e.to].second=v; que.emplace(dist[e.to].first,e.to); } } } vector<int> path; if(dist[t].first==max_inf){ return P(dist[t].first,path); } int now=t; while(now!=start){ path.push_back(now); now=dist[now].second; } //reverse(path.begin(),path.end()); return P(dist[t].first,path); }; vector<P> ans; auto compare=[](P a,P b){ return a.first>b.first; }; priority_queue<P,vector<P>,decltype(compare)> candidate(compare); vector<int> prev_path; vector<int> spur_path; set<vector<int>> set_ans; while(k--){ if(ans.size()==0){ auto c=dijkstra(spur_path); c.second.push_back(s); reverse(c.second.begin(),c.second.end()); if(c.first!=max_inf) candidate.push(c); }else{ T prev_cost=0; for(int i=0;i<int(prev_path.size())-1;i++){ spur_path.push_back(prev_path[i]); ban_edge[spur_path].insert(prev_path[i+1]); auto c=dijkstra(spur_path); for(int j=i;j>=0;j--) c.second.push_back(prev_path[j]); reverse(c.second.begin(),c.second.end()); c.first+=prev_cost; if(c.first!=max_inf) candidate.push(c); for(auto &e:graph[prev_path[i]]){ if(e.to==prev_path[i+1]) prev_cost+=e.cost; } } } bool ok=false; while(candidate.size()){ auto c=candidate.top(); candidate.pop(); if(set_ans.count(c.second)) continue; ans.push_back(c); prev_path=c.second; ok=true; set_ans.insert(c.second); break; } if(not ok) break; spur_path.clear(); } return ans; } void solve(){ int N,M,K; cin>>N>>M>>K; int s,t; cin>>s>>t; s--; t--; WeightGraph<double> graph(N); vector<int> p(N),q(N); for(int i=0;i<N;i++){ cin>>p[i]>>q[i]; } for(int i=0;i<M;i++){ int a,b; cin>>a>>b; a--; b--; double dp=p[a]-p[b],dq=q[a]-q[b]; double cost=sqrt(dp*dp+dq*dq); graph[a].emplace_back(b,cost); graph[b].emplace_back(a,cost); } auto ans=YenAlgorithm(graph,K,s,t); for(int i=0;i<K;i++){ if(i>=int(ans.size())){ cout<<-1<<endl; }else{ cout<<ans[i].first<<endl; } } } int main(){ ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); int T=1; while(T--) solve(); }