結果
| 問題 | No.1153 ねこちゃんゲーム |
| ユーザー |
 hotman78
|
| 提出日時 | 2020-08-07 22:45:08 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2,025 ms / 2,500 ms |
| コード長 | 6,428 bytes |
| コンパイル時間 | 28,498 ms |
| コンパイル使用メモリ | 460,996 KB |
| 最終ジャッジ日時 | 2025-01-12 17:32:05 |
|
ジャッジサーバーID （参考情報） |
judge4 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 40 |
ソースコード
#pragma GCC optimize("Ofast")#pragma GCC optimize("unroll-loops")#pragma GCC push_options#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")#include<bits/stdc++.h>#include <xmmintrin.h>#include <immintrin.h>using namespace::std;__attribute__((constructor))void init(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}#include<ext/pb_ds/assoc_container.hpp>#include<ext/pb_ds/tree_policy.hpp>#include <ext/pb_ds/priority_queue.hpp>#include<ext/pb_ds/tag_and_trait.hpp>// #include <boost/multiprecision/cpp_dec_float.hpp>// #include <boost/multiprecision/cpp_int.hpp>// namespace mp = boost::multiprecision;// typedef mp::number<mp::cpp_dec_float<0>> cdouble;// typedef mp::cpp_int cint;template<typename T>using pbds=__gnu_pbds::tree<T,__gnu_pbds::null_type,less<T>,__gnu_pbds::rb_tree_tag,__gnu_pbds::tree_order_statistics_node_update>;template<typename T>using pbds_map=__gnu_pbds::tree<T,T,less<T>,__gnu_pbds::rb_tree_tag,__gnu_pbds::tree_order_statistics_node_update>;template<typename T,typename E>using hash_map=__gnu_pbds::gp_hash_table<T,E>;template<typename T>using pqueue =__gnu_pbds::priority_queue<T, greater<T>,__gnu_pbds::rc_binomial_heap_tag>;typedef long long lint;#define INF (1LL<<60)#define IINF (1<<30)#define LINF (9223372036854775807LL)#define EPS (1e-10)#define endl ('\n')//#define MOD 1000000007LL#define MOD 998244353LL//#define MOD 18446744069414584321ULLtypedef vector<lint> vec;typedef vector<vector<lint>> mat;typedef vector<vector<vector<lint>>> mat3;typedef vector<string> svec;typedef vector<vector<string>> smat;template<typename T>inline void numout(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i<INF/2?i:"INF";f=1;}cout<<endl;}template<typename T>inline void numout2(T t){for(auto i:t)numout(i);}template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;}template<typename T>inline void output2(T t){for(auto i:t)output(i);}template<typename T>inline void debug(T t){bool f=0;for(auto i:t){cerr<<(f?" ":"")<<i;f=1;}cerr<<endl;}template<typename T>inline void debug2(T t){for(auto i:t)output(i);}template<typename T>inline void _output(T t){bool f=0;for(lint i=0;i<t.size();i++){cout<<f?"":" "<<t[i];f=1;}cout<<endl;}template<typename T>inline void _output2(T t){for(lint i=0;i<t.size();i++)output(t[i]);}#define rep(i,...) for(auto i:range(__VA_ARGS__))#define rrep(i,...) for(auto i:reversed(range(__VA_ARGS__)))#define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i)#define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i)#define irep(i) for(lint i=0;;++i)inline vector<int64_t> range(int64_t n){vector<int64_t>v(n);iota(v.begin(),v.end(),0LL);return v;}inline vector<int64_t> range(int64_t a,int64_t b){vector<int64_t>v(b-a);iota(v.begin(),v.end(),a);return v;}inline vector<int64_t> range(int64_t a,int64_t b,int64_t c){vector<int64_t>v((b-a+c-1)/c);for(int i=0;i<(int)v.size();++i)v[i]=i?v[i-1]+c:a;return v;}inline auto reversed(auto v){reverse(v.begin(),v.end());return v;}#define all(n) begin(n),end(n)#define dist(a,b,c,d) sqrt(pow(a-c,2)+pow(b-d,2))//inline lint gcd(lint A,lint B){return B?gcd(B,A%B):A;}//inline lint lcm(lint A,lint B){return A/gcd(A,B)*B;}// inline cint cgcd(cint A,cint B){return B?cgcd(B,A%B):A;}// inline cint clcm(cint A,cint B){return A/cgcd(A,B)*B;}bool chmin(auto& s,const auto& t){bool res=s>t;s=min(s,t);return res;}bool chmax(auto& s,const auto& t){bool res=s<t;s=max(s,t);return res;}const vector<lint> dx={1,0,-1,0,1,1,-1,-1};const vector<lint> dy={0,1,0,-1,1,-1,1,-1};#define SUM(v) accumulate(all(v),0LL)auto call=[](auto f,auto... args){return f(f,args...);};template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else returnvector(arg,make_vector<T>(x,args...));}template<typename T>struct reroot{vector<vector<lint>>g;vector<lint>p_list;vector<T>p_table;vector<bool>p_checked;vector<map<lint,T>>table;vector<T>ans;reroot(auto g):g(g),p_list(g.size(),-1),p_checked(g.size(),0),table(g.size()){p_table.resize(g.size(),e);ans.resize(g.size(),e);dfs1(0,-1);for(int i=0;i<(int)g.size();++i)ans[i]=dfs2(i,-1);}T dfs1(lint n,lint p){p_list[n]=p;T tmp1=e,tmp2=e;vector<T>tmp(g[n].size());rep(i,g[n].size()){lint t=g[n][i];if(t==p)continue;table[n][t]=tmp1;tmp1=f(tmp1,tmp[i]=dfs1(t,n));}for(lint i=g[n].size()-1;i>=0;--i){lint t=g[n][i];if(t==p)continue;table[n][t]=f(table[n][t],tmp2);tmp2=f(tmp[i],tmp2);}return fix(table[n][p]=tmp1,n,p);}T dfs2(lint n,lint p){if(n==-1)return e;if(!p_checked[n]){p_checked[n]=1;p_table[n]=dfs2(p_list[n],n);}if(p==-1){return f(table[n][p_list[n]],p_table[n]);}else{if(p_list[n]==-1)return fix(table[n][p],n,p);else return fix(f(table[n][p],p_table[n]),n,p);}}vector<T>query(){return ans;}T e=make_tuple(0,map<int,int>(),-1);T f(T s,T t){for(auto e:get<1>(t)){if(e.second!=-1)get<1>(s)[e.first]=e.second;}return s;}T fix(T s,int n,int p){get<0>(s)=0;for(auto e:get<1>(s)){if(e.first==get<0>(s))get<0>(s)++;else break;}get<1>(s).clear();get<1>(s)[get<0>(s)]=n;get<2>(s)=n;return s;}};int main(){lint n,m;cin>>n>>m;vec a(m);rep(i,m)cin>>a[i];rep(i,m)a[i]--;mat g(n);rep(i,n-1){lint s,t;cin>>s>>t;s--;t--;g[s].push_back(t);g[t].push_back(s);}auto e=reroot<tuple<int,map<int,int>,int>>(g).query();vec mex(n);rep(i,n){mex[i]=0;for(auto d:get<1>(e[i])){if(d.first==mex[i])mex[i]++;else break;}}lint ans=0;rep(i,m){ans^=mex[a[i]];}if(ans==0){cout<<-1<<" "<<-1<<endl;return 0;}rep(i,m){if((ans^mex[a[i]])<mex[a[i]]){cout<<i+1<<" "<<get<1>(e[a[i]])[ans^mex[a[i]]]+1<<endl;}}}