結果
問題 | No.1153 ねこちゃんゲーム |
ユーザー |
![]() |
提出日時 | 2022-03-14 05:03:53 |
言語 | C++17 (gcc 11.2.0 + boost 1.78.0) |
結果 |
AC
|
実行時間 | 362 ms / 2,500 ms |
コード長 | 3,842 bytes |
コンパイル時間 | 2,798 ms |
使用メモリ | 20,576 KB |
最終ジャッジ日時 | 2022-11-18 04:31:36 |
合計ジャッジ時間 | 22,827 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge11 |
テストケース
テストケース表示入力 | 結果 | 実行時間 使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
3,412 KB |
testcase_01 | AC | 1 ms
3,508 KB |
testcase_02 | AC | 2 ms
3,620 KB |
testcase_03 | AC | 2 ms
3,592 KB |
testcase_04 | AC | 2 ms
3,488 KB |
testcase_05 | AC | 2 ms
3,488 KB |
testcase_06 | AC | 2 ms
3,644 KB |
testcase_07 | AC | 311 ms
19,628 KB |
testcase_08 | AC | 320 ms
19,624 KB |
testcase_09 | AC | 309 ms
19,600 KB |
testcase_10 | AC | 304 ms
19,576 KB |
testcase_11 | AC | 313 ms
19,528 KB |
testcase_12 | AC | 319 ms
19,580 KB |
testcase_13 | AC | 326 ms
19,532 KB |
testcase_14 | AC | 303 ms
19,520 KB |
testcase_15 | AC | 315 ms
19,524 KB |
testcase_16 | AC | 321 ms
19,536 KB |
testcase_17 | AC | 309 ms
19,544 KB |
testcase_18 | AC | 307 ms
19,640 KB |
testcase_19 | AC | 300 ms
19,564 KB |
testcase_20 | AC | 316 ms
19,656 KB |
testcase_21 | AC | 313 ms
19,612 KB |
testcase_22 | AC | 310 ms
19,652 KB |
testcase_23 | AC | 316 ms
19,676 KB |
testcase_24 | AC | 316 ms
19,680 KB |
testcase_25 | AC | 309 ms
19,656 KB |
testcase_26 | AC | 310 ms
19,584 KB |
testcase_27 | AC | 342 ms
20,064 KB |
testcase_28 | AC | 341 ms
19,436 KB |
testcase_29 | AC | 362 ms
19,532 KB |
testcase_30 | AC | 355 ms
19,512 KB |
testcase_31 | AC | 336 ms
19,508 KB |
testcase_32 | AC | 180 ms
20,264 KB |
testcase_33 | AC | 191 ms
20,184 KB |
testcase_34 | AC | 184 ms
20,452 KB |
testcase_35 | AC | 190 ms
20,260 KB |
testcase_36 | AC | 202 ms
20,576 KB |
testcase_37 | AC | 103 ms
20,284 KB |
testcase_38 | AC | 91 ms
20,312 KB |
testcase_39 | AC | 95 ms
20,432 KB |
testcase_40 | AC | 100 ms
20,216 KB |
testcase_41 | AC | 88 ms
20,264 KB |
ソースコード
#include <bits/stdc++.h> #pragma GCC optimize("Ofast") #define _GLIBCXX_DEBUG using namespace std; using std::cout; using std::cin; using std::endl; using ll=long long; using ld=long double; ll ILL=1167167167167167167; const int INF=2100000000; const ll mod=1e9+7; #define rep(i,a) for (ll i=0;i<a;i++) #define all(p) p.begin(),p.end() template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>; template<class T> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();} template<class T> ll UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();} template<class T> bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}else return 0;} template<class T> bool chmax(T &a,const T &b){if(a<b){a=b;return 1;}else return 0;} template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());} template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});} void yneos(bool a){if(a) cout<<"Yes\n"; else cout<<"No\n";} template<class T> void vec_out(vector<T> &p){for(int i=0;i<(int)(p.size());i++){if(i) cout<<" ";cout<<p[i];}cout<<"\n";} std::vector<std::vector<int>> tree_in(int N){ std::vector<std::vector<int>> G(N); for(int i=0;i<N-1;i++){ int a;int b; cin>>a>>b; a--,b--; G[a].push_back(b); G[b].push_back(a); } return G; } std::tuple<std::vector<int>,std::vector<int>,std::vector<int>> tree_order_pare_depth(std::vector<std::vector<int>> &G,int root){ int n=G.size(); std::vector<int> order={root},pare(n,-1),depth(n); pare[root]=-2; for(int i=0;i<n;i++){ int a=order[i]; for(auto x:G[a]){ if(pare[x]==-1){ pare[x]=a; depth[x]=depth[a]+1; order.push_back(x); } } } return {order,pare,depth}; } std::vector<int> tree_diameter_path(std::vector<std::vector<int>> &G){ int n=G.size(); auto r=(std::get<0>(tree_order_pare_depth(G,0))).at(n-1); std::vector<int> order,pare,depth,ans; tie(order,pare,depth)=tree_order_pare_depth(G,r); int ind=order[n-1]; while(ind!=-2){ ans.push_back(ind); ind=pare[ind]; } return ans; } void solve(); // oddloop int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int t=1; //cin>>t; rep(i,t) solve(); } void solve(){ int N,M; cin>>N>>M; vector<int> p(M); rep(i,M) cin>>p[i],p[i]--; map<pair<int,int>,int> m; auto G=tree_in(N); vector<int> order,pare,dp2; tie(order,pare,dp2)=tree_order_pare_depth(G,0); dp2[0]=N; vector<int> table(N+1),dp(N),dp3(N); set<int> s; rep(i,N){ int a=order[N-i-1]; for(auto x:G[a]){ if(pare[x]==a){ table[dp[x]]++; s.insert(dp[x]); } } rep(j,N+1){ if(table[j]==0){ dp[a]=j; break; } } for(auto x:s) table[x]=0; s={}; } rep(i,N){ int a=order[i]; for(auto x:G[a]){ if(pare[x]==a){ table[dp[x]]++; s.insert(dp[x]); } } table[dp2[a]]++; s.insert(dp2[a]); int X=-1; rep(i,N+1){ if(table[i]==0){ X=i; break; } } //cout<<"$"<<a+1<<" "<<X<<endl; for(auto x:G[a]){ if(pare[x]==a){ //cout<<dp[x]<<" "<<table[dp[x]]<<endl; if(table[dp[x]]==1) dp2[x]=min(dp[x],X); else dp2[x]=X; } } for(auto x:s) table[x]=0; s={}; } int ans=0; rep(y,N){ for(auto x:G[y]){ if(pare[x]==y){ table[dp[x]]++; s.insert(dp[x]); } } table[dp2[y]]++; s.insert(dp2[y]); rep(i,N+1){ if(table[i]==0){ dp3[y]=i; break; } } for(auto x:s) table[x]=0; s={}; } rep(i,M) ans^=dp3[p[i]]; /*rep(i,N){ cout<<dp[i]<<" "<<dp2[i]<<" "<<dp3[i]<<endl; }*/ if(ans==0){ cout<<"-1 -1\n"; return; } set<int> ban; rep(i,M){ int y=p[i]; if(ban.count(y)) continue; ban.insert(y); if(y!=0&&(ans^dp2[y]^dp3[y])==0){ cout<<i+1<<" "<<pare[y]+1<<"\n"; return; } for(auto x:G[y]){ if(pare[x]==y){ if((ans^dp3[y]^dp[x])==0){ cout<<i+1<<" "<<x+1<<"\n"; return; } } } } }