結果
問題 | No.1647 Travel in Mitaru city 2 |
ユーザー | むかで |
提出日時 | 2021-08-13 23:07:26 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,868 bytes |
コンパイル時間 | 2,804 ms |
コンパイル使用メモリ | 220,336 KB |
実行使用メモリ | 46,208 KB |
最終ジャッジ日時 | 2024-10-03 22:32:42 |
合計ジャッジ時間 | 22,919 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 2 ms
5,248 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | AC | 2 ms
5,248 KB |
testcase_44 | AC | 7 ms
7,936 KB |
testcase_45 | WA | - |
testcase_46 | AC | 239 ms
30,976 KB |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | WA | - |
ソースコード
#include <bits/stdc++.h> #define rep(i,n) for(int i=0;i<(int)(n);i++) #define FOR(i,n,m) for(int i=(int)(n); i<=(int)(m); i++) #define RFOR(i,n,m) for(int i=(int)(n); i>=(int)(m); i--) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define RITR(x,c) for(__typeof(c.rbegin()) x=c.rbegin();x!=c.rend();x++) #define setp(n) fixed << setprecision(n) 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 ll long long #define vll vector<ll> #define vi vector<int> #define pll pair<ll,ll> #define pi pair<int,int> #define all(a) (a.begin()),(a.end()) #define rall(a) (a.rbegin()),(a.rend()) #define fi first #define se second #define pb push_back #define ins insert #define debug(a) cerr<<(a)<<endl #define dbrep(a,n) rep(_i,n) cerr<<(a[_i])<<" "; cerr<<endl #define dbrep2(a,n,m) rep(_i,n){rep(_j,m) cerr<<(a[_i][_j])<<" "; cerr<<endl;} using namespace std; template<class A, class B> ostream &operator<<(ostream &os, const pair<A,B> &p){return os<<"("<<p.fi<<","<<p.se<<")";} template<class A, class B> istream &operator>>(istream &is, pair<A,B> &p){return is>>p.fi>>p.se;} template<class T> vector<T> make_vec(size_t a){ return vector<T>(a); } template<class T, class... Ts> auto make_vec(size_t a, Ts... ts){ return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } //------------------------------------------------- //--Graph Template //------------------------------------------------- template<class E> struct Graph { vector<vector<E> > adj; Graph(int N):adj(N){} virtual void add_edge(int v, E e){adj[v].push_back(e);} vector<E>& operator[](int v){return adj[v];} inline int size(){return adj.size();} }; namespace graph { struct SimpleEdge { int to; SimpleEdge(int to):to(to){} }; } struct UWGraph : public Graph<graph::SimpleEdge> { UWGraph(int N):Graph(N){} void add_edge(int v, int e){adj[v].push_back({e});} }; //------------------------------------------------- //--Get Cycle Any //------------------------------------------------- namespace Cycle { stack<int> st; vector<bool> seen,finished; int pos; template<class E> void dfs(int v, int p, Graph<E> &G, bool dir=true){ st.push(v); seen[v] = true; for(auto &e:G[v]){ if (!dir && e.to==p) continue; if (finished[e.to]) continue; if (seen[e.to] && !finished[e.to]){ pos = e.to; return; } dfs(e.to,v,G,dir); if (pos!=-1) return; } finished[v] = true; st.pop(); } void init(int V){ pos = -1; st=stack<int>(); seen.resize(V,false); finished.resize(V,false); } vector<int> restore(){ vector<int> ret; if (pos==-1) return ret; while(!st.empty()){ int u = st.top(); st.pop(); ret.push_back(u); if (u==pos) break; } reverse(ret.begin(),ret.end()); return ret; } template<class E> vector<int> get(Graph<E> &G, bool dir=true){ int V = G.size(); init(V); for(int i=0;i<V;i++)if(!seen[i]){ dfs(i,-1,G,dir); if (pos!=-1) break; } return restore(); } template<class E> vector<int> get(int v, Graph<E> &G, bool dir=true){ int V = G.size(); init(V); dfs(v,-1,G,dir); return restore(); } template<class E> vector<int> minimize(vector<int> &cycle, Graph<E> &G, bool dir=true){ vector<int> ret; int L = cycle.size(); if (L==0) return ret; unordered_map<int,int> Mp; for(int j=0;j<L;j++) Mp[cycle[j]]=j; int i=0; while(i<L){ ret.push_back(cycle[i]); int ni=i; for(auto &e:G[cycle[i]]){ if (!dir && i==0 && e.to==cycle[L-1]) continue; if (!dir && ret.size()<3 && e.to==cycle[0]) continue; if (e.to==cycle[0]){ ni=L; break; }else{ chmax(ni,Mp[e.to]); } } i=ni; } return ret; } } //------------------------------------------------- int main(void) { cin.tie(0); ios::sync_with_stdio(false); int H,W,N; cin>>H>>W>>N; vector<vi> row(H), col(W); rep(i,N){ int y,x; cin>>y>>x; y--; x--; row[y].pb(i); col[x].pb(i); } UWGraph G(4*N); rep(i,H){ auto &vec = row[i]; int sz = vec.size(); rep(j,sz-1){ int from = vec[j]; int to = vec[j+1]; G.add_edge(from,to); } rep(j,sz-1){ int from = vec[j+1] + N; int to = vec[j] + N; G.add_edge(from,to); } rep(j,sz-1){ int from = vec[j] + 2*N; int to = vec[j+1]; G.add_edge(from,to); from = vec[j] + 3*N; G.add_edge(from,to); } rep(j,sz-1){ int from = vec[j+1] + 2*N; int to = vec[j] + N; G.add_edge(from,to); from = vec[j+1] + 3*N; G.add_edge(from,to); } } rep(i,W){ auto &vec = col[i]; int sz = vec.size(); rep(j,sz-1){ int from = vec[j] + 2*N; int to = vec[j+1] + 2*N; G.add_edge(from,to); } rep(j,sz-1){ int from = vec[j+1] + 3*N; int to = vec[j] + 3*N; G.add_edge(from,to); } rep(j,sz-1){ int from = vec[j]; int to = vec[j+1] + 2*N; G.add_edge(from,to); from = vec[j] + N; G.add_edge(from,to); } rep(j,sz-1){ int from = vec[j+1]; int to = vec[j] + 3*N; G.add_edge(from,to); from = vec[j+1] + N; G.add_edge(from,to); } } auto cycle = Cycle::get(G); if (cycle.empty()){ cout<<"-1\n"; }else{ int sz = cycle.size(); cout<<sz<<"\n"; rep(i,sz) cout<<cycle[i]%N+1<<" \n"[i==sz-1]; } return 0; }