結果
問題 | No.1254 補強への架け橋 |
ユーザー | cureskol |
提出日時 | 2022-11-16 12:55:41 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 384 ms / 2,000 ms |
コード長 | 6,209 bytes |
コンパイル時間 | 3,172 ms |
コンパイル使用メモリ | 243,168 KB |
実行使用メモリ | 21,256 KB |
最終ジャッジ日時 | 2024-09-17 09:48:44 |
合計ジャッジ時間 | 17,876 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 2 ms
5,376 KB |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | AC | 2 ms
5,376 KB |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | AC | 3 ms
5,376 KB |
testcase_37 | AC | 2 ms
5,376 KB |
testcase_38 | AC | 2 ms
5,376 KB |
testcase_39 | AC | 2 ms
5,376 KB |
testcase_40 | AC | 2 ms
5,376 KB |
testcase_41 | AC | 2 ms
5,376 KB |
testcase_42 | AC | 2 ms
5,376 KB |
testcase_43 | AC | 3 ms
5,376 KB |
testcase_44 | AC | 3 ms
5,376 KB |
testcase_45 | AC | 2 ms
5,376 KB |
testcase_46 | AC | 2 ms
5,376 KB |
testcase_47 | AC | 2 ms
5,376 KB |
testcase_48 | AC | 3 ms
5,376 KB |
testcase_49 | AC | 2 ms
5,376 KB |
testcase_50 | AC | 3 ms
5,376 KB |
testcase_51 | AC | 2 ms
5,376 KB |
testcase_52 | AC | 3 ms
5,376 KB |
testcase_53 | AC | 3 ms
5,376 KB |
testcase_54 | AC | 3 ms
5,376 KB |
testcase_55 | AC | 3 ms
5,376 KB |
testcase_56 | AC | 2 ms
5,376 KB |
testcase_57 | AC | 2 ms
5,376 KB |
testcase_58 | AC | 2 ms
5,376 KB |
testcase_59 | AC | 2 ms
5,376 KB |
testcase_60 | AC | 3 ms
5,376 KB |
testcase_61 | AC | 3 ms
5,376 KB |
testcase_62 | AC | 2 ms
5,376 KB |
testcase_63 | AC | 12 ms
5,376 KB |
testcase_64 | AC | 4 ms
5,376 KB |
testcase_65 | AC | 8 ms
5,376 KB |
testcase_66 | AC | 6 ms
5,376 KB |
testcase_67 | AC | 4 ms
5,376 KB |
testcase_68 | AC | 7 ms
5,376 KB |
testcase_69 | AC | 9 ms
5,376 KB |
testcase_70 | AC | 5 ms
5,376 KB |
testcase_71 | AC | 4 ms
5,376 KB |
testcase_72 | AC | 9 ms
5,376 KB |
testcase_73 | AC | 4 ms
5,376 KB |
testcase_74 | AC | 9 ms
5,376 KB |
testcase_75 | AC | 7 ms
5,376 KB |
testcase_76 | AC | 3 ms
5,376 KB |
testcase_77 | AC | 6 ms
5,376 KB |
testcase_78 | AC | 10 ms
5,376 KB |
testcase_79 | AC | 12 ms
5,376 KB |
testcase_80 | AC | 10 ms
5,376 KB |
testcase_81 | AC | 11 ms
5,376 KB |
testcase_82 | AC | 10 ms
5,376 KB |
testcase_83 | AC | 172 ms
19,328 KB |
testcase_84 | AC | 164 ms
18,816 KB |
testcase_85 | AC | 92 ms
12,928 KB |
testcase_86 | AC | 136 ms
16,640 KB |
testcase_87 | AC | 149 ms
18,048 KB |
testcase_88 | AC | 17 ms
5,528 KB |
testcase_89 | AC | 164 ms
19,200 KB |
testcase_90 | AC | 94 ms
13,440 KB |
testcase_91 | AC | 68 ms
11,392 KB |
testcase_92 | AC | 34 ms
7,424 KB |
testcase_93 | AC | 124 ms
16,000 KB |
testcase_94 | AC | 109 ms
14,848 KB |
testcase_95 | AC | 110 ms
14,720 KB |
testcase_96 | AC | 161 ms
18,432 KB |
testcase_97 | AC | 58 ms
10,240 KB |
testcase_98 | AC | 169 ms
18,560 KB |
testcase_99 | AC | 81 ms
12,544 KB |
testcase_100 | AC | 181 ms
19,584 KB |
testcase_101 | AC | 31 ms
7,168 KB |
testcase_102 | AC | 15 ms
5,376 KB |
testcase_103 | AC | 36 ms
7,424 KB |
testcase_104 | AC | 48 ms
9,088 KB |
testcase_105 | AC | 132 ms
16,128 KB |
testcase_106 | AC | 63 ms
10,752 KB |
testcase_107 | AC | 177 ms
19,200 KB |
testcase_108 | AC | 177 ms
19,072 KB |
testcase_109 | AC | 132 ms
15,744 KB |
testcase_110 | AC | 108 ms
14,592 KB |
testcase_111 | AC | 127 ms
15,488 KB |
testcase_112 | AC | 48 ms
8,704 KB |
testcase_113 | AC | 106 ms
14,464 KB |
testcase_114 | AC | 64 ms
10,624 KB |
testcase_115 | AC | 19 ms
5,888 KB |
testcase_116 | AC | 74 ms
11,776 KB |
testcase_117 | AC | 45 ms
8,832 KB |
testcase_118 | AC | 172 ms
18,304 KB |
testcase_119 | AC | 85 ms
12,416 KB |
testcase_120 | AC | 150 ms
17,792 KB |
testcase_121 | AC | 38 ms
7,936 KB |
testcase_122 | AC | 77 ms
11,520 KB |
testcase_123 | AC | 2 ms
5,376 KB |
testcase_124 | AC | 384 ms
21,252 KB |
testcase_125 | AC | 364 ms
21,256 KB |
ソースコード
#pragma region template #pragma GCC optimize("Ofast") #include <bits/stdc++.h> using namespace std; #ifdef __LOCAL #include <debug> #else #define debug(...) void(0) #endif using ll=long long; using ld=long double; using vi=vector<int>; using vll=vector<ll>; using pi=pair<int,int>; using pll=pair<ll,ll>; #define overload2(a,b,c,...) c #define overload3(a,b,c,d,...) d #define overload4(a,b,c,d,e,...) e #define overload5(a,b,c,d,e,f,...) f #define TYPE1(T) template<typename T> #define TYPE2(T,U) template<typename T,typename U> #define TYPE(...) overload2(__VA_ARGS__,TYPE2,TYPE1)(__VA_ARGS__) #define TYPES1(T) template<typename... T> #define TYPES2(H,T) template<typename H,typename... T> #define TYPES(...) overload2(__VA_ARGS__,TYPES2,TYPES1)(__VA_ARGS__) #define REP4(i,s,n,d) for(int i=(s);i<(n);i+=(d)) #define REP3(i,s,n) REP4(i,s,n,1) #define REP2(i,n) REP3(i,0,n) #define REP1(n) REP2(tomato,n) #define REP(...) overload4(__VA_ARGS__,REP4,REP3,REP2,REP1)(__VA_ARGS__) #define RREP4(i,n,s,d) for(int i=(n)-1;i>=s;i-=d) #define RREP3(i,n,s) RREP4(i,n,s,1) #define RREP2(i,n) RREP3(i,n,0) #define RREP1(n) RREP2(tomato,n) #define RREP(...) overload4(__VA_ARGS__,RREP4,RREP3,RREP2,RREP1)(__VA_ARGS__) #define FOR4(a,b,c,d,v) for(auto [a,b,c,d]:v) #define FOR3(a,b,c,v) for(auto [a,b,c]:v) #define FOR2(a,b,v) for(auto [a,b]:v) #define FOR1(a,v) for(auto a:v) #define FOR(...) overload5(__VA_ARGS__,FOR4,FOR3,FOR2,FOR1)(__VA_ARGS__) #define AFOR4(a,b,c,d,v) for(auto&[a,b,c,d]:v) #define AFOR3(a,b,c,v) for(auto&[a,b,c]:v) #define AFOR2(a,b,v) for(auto&[a,b]:v) #define AFOR1(a,v) for(auto&a:v) #define AFOR(...) overload5(__VA_ARGS__,AFOR4,AFOR3,AFOR2,AFOR1)(__VA_ARGS__) #define CFOR4(a,b,c,d,v) for(const auto&[a,b,c,d]:v) #define CFOR3(a,b,c,v) for(const auto&[a,b,c]:v) #define CFOR2(a,b,v) for(const auto&[a,b]:v) #define CFOR1(a,v) for(const auto&a:v) #define CFOR(...) overload5(__VA_ARGS__,CFOR4,CFOR3,CFOR2,CFOR1)(__VA_ARGS__) #define ALL(v) v.begin(),v.end() #define RALL(v) v.rbegin(),v.rend() #define SORT(v) sort(ALL(v)) #define RSORT(v) sort(RALL(v)) #define REVERSE(v) reverse(ALL(v)) #define UNIQUE(v) SORT(v),v.erase(unique(ALL(v)),v.end()) TYPES(T) void input(T&... a){ (cin>>...>>a); } #define DECLARE(T,...) T __VA_ARGS__;input(__VA_ARGS__); #define INT(...) DECLARE(int,__VA_ARGS__) #define STR(...) DECLARE(string,__VA_ARGS__) #define LL(...) DECLARE(long long,__VA_ARGS__) #define CHR(...) DECLARE(char,__VA_ARGS__) #define DBL(...) DECLARE(double,__VA_ARGS__) #define VI(n,v) vi v(n);cin>>v; #define VLL(n,v) vll v(n);cin>>v; TYPE(T) istream&operator>>(istream&is,vector<T>&v){ for(auto&a:v)cin>>a; return is; } TYPE(T) ostream&operator<<(ostream&os,const vector<T>&v){ if(&os==&cerr)os<<"["; REP(i,v.size()){ os<<v[i]; if(i+1<v.size())os<<(&os==&cerr?",":" "); } if(&os==&cerr)os<<"]"; return os; } TYPE(T,S) istream&operator>>(istream&is,pair<T,S>&p){ cin>>p.first>>p.second; return is; } void print(){ cout << '\n'; } TYPES(T,Ts) void print(const T& a,const Ts&... b){ cout<<a; (cout<<...<<(cout<< ' ',b)); cout << '\n'; } TYPE(T) using pq=priority_queue<T>; TYPE(T) using pqg=priority_queue<T,vector<T>,greater<T>>; TYPE(T) T pick(queue<T>& que){assert(que.size()); T a=que.front();que.pop();return a;} TYPE(T) T pick(pq<T>& que){assert(que.size()); T a=que.top();que.pop();return a;} TYPE(T) T pick(pqg<T>& que){assert(que.size()); T a=que.top();que.pop();return a;} TYPE(T) T pick(stack<T>& sta){assert(sta.size()); T a=sta.top();sta.pop();return a;} string YES(bool f=true){return (f?"YES":"NO");} string Yes(bool f=true){return (f?"Yes":"No");} string yes(bool f=true){return (f?"yes":"no");} constexpr int INF=1e9+7; constexpr ll LINF=ll(1e18)+7; constexpr ld EPS=1e-10; vi iota(int n){vi a(n);iota(ALL(a),0);return a;} TYPE(T) T rev(T a){ REVERSE(a);return a; } TYPE(T) void fin(T a){cout<<a<<endl;exit(0);} TYPE(T) bool chmax(T &a,T b){return (a<b&&(a=b,true));} TYPE(T) bool chmin(T &a,T b){return (a>b&&(a=b,true));} TYPES(T,Ns) auto make_vector(T x,int n,Ns ...ns){ if constexpr(sizeof...(ns)==0)return vector<T>(n,x); else return vector(n,make_vector<T>(x,ns...)); } bool in(const ll S,const int a){return (S>>a)&1;} int popcount(const ll S){return __builtin_popcountll(S);} #pragma endregion template struct TwoEdgeConnectedComponents{ struct edge{int to,rev,bri,tree;}; int n,cnt=0; vector<vector<edge>> G; vector<int> ord,low; vector<bool> used; TwoEdgeConnectedComponents(int n_):n(n_),G(n_),ord(n_,0),low(n_,n_+1),used(n_,false){} void add_edge(int u,int v){ G[u].push_back({v,(int)G[v].size(),false,false}); G[v].push_back({u,(int)G[u].size()-1,false,false}); } inline void dfs(int v){ low[v]=ord[v]=++cnt; for(edge &p:G[v]){ if(G[p.to][p.rev].tree)continue; if(!ord[p.to]){ p.tree=true; dfs(p.to); } low[v]=min(low[v],low[p.to]); p.bri=G[p.to][p.rev].bri=p.tree&&ord[v]<low[p.to]; } } vector<vector<int>> solve(){ vector<vector<int>> res; for(int i=0;i<n;i++)if(!ord[i])dfs(i); queue<int> que; vector<bool>used(n,false); for(int i=0;i<n;i++){ if(used[i])continue; vector<int> tmp; que.push(i);used[i]=true; while(que.size()){ int p=que.front();que.pop(); tmp.push_back(p); for(edge q:G[p])if(!q.bri&&!used[q.to]){ que.push(q.to); used[q.to]=true; } } res.push_back(tmp); } return res; } }; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); INT(n); vector<vector<int>> g(n); vector<int> in(n,0); map<pair<int,int>,int> mp; REP(i,n){ INT(a,b);a--;b--; g[a].push_back(b); g[b].push_back(a); in[a]++;in[b]++; mp[minmax(a,b)]=i+1; } queue<int> que; REP(i,n)if(in[i]==1)que.push(i); set<int> se; REP(i,n)se.insert(i); while(que.size()){ int p=pick(que); se.erase(p); for(int q:g[p])if(--in[q]==1)que.push(q); } vector<int> ans; REP(i,n)if(se.count(i)) for(int to:g[i])if(se.count(to)) ans.push_back(mp[minmax(i,to)]); SORT(ans); UNIQUE(ans); cout<<ans.size()<<endl; cout<<ans<<endl; }