結果
問題 | No.1216 灯籠流し/Lanterns |
ユーザー | beet |
提出日時 | 2020-09-01 20:37:35 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 13,857 bytes |
コンパイル時間 | 3,728 ms |
コンパイル使用メモリ | 268,368 KB |
実行使用メモリ | 38,008 KB |
最終ジャッジ日時 | 2024-04-30 18:47:54 |
合計ジャッジ時間 | 12,720 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 45 ms
16,384 KB |
testcase_05 | TLE | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
testcase_47 | -- | - |
testcase_48 | -- | - |
testcase_49 | -- | - |
ソースコード
#define PROBLEM "https://yukicoder.me/problems/4852" #include<bits/stdc++.h> using namespace std; #define call_from_test #ifndef call_from_test #include<bits/stdc++.h> using namespace std; #endif /* * @docs docs/binaryindexedtree.md */ //BEGIN CUT HERE template<typename T> struct BIT{ int n; vector<T> bit; // 1-indexed BIT(int n_):n(n_+1),bit(n+1,0){} T sum(int i){ T s(0); for(int x=i;x>0;x-=(x&-x)) s+=bit[x]; return s; } void add(int i,T a){ if(i==0) return; for(int x=i;x<=n;x+=(x&-x)) bit[x]+=a; } // [l, r) T query(int l,int r){ return sum(r-1)-sum(l-1); } int lower_bound(int w){ if(w<=0) return 0; int x=0,r=1; while(r<n) r<<=1; for(int k=r;k>0;k>>=1){ if(x+k<=n&&bit[x+k]<w){ w-=bit[x+k]; x+=k; } } return x+1; } // 0-indexed T sum0(int i){return sum(i+1);} void add0(int i,T a){add(i+1,a);} T query0(int l,int r){return sum(r)-sum(l);} }; //END CUT HERE #ifndef call_from_test signed main(){ return 0; } #endif #ifndef call_from_test #include <bits/stdc++.h> using namespace std; #endif //BEGIN CUT HERE template<typename TV, const int N> void read_tuple_impl(TV&) {} template<typename TV, const int N, typename Head, typename... Tail> void read_tuple_impl(TV& ts) { get<N>(ts).emplace_back(*(istream_iterator<Head>(cin))); read_tuple_impl<TV, N+1, Tail...>(ts); } template<typename... Ts> decltype(auto) read_tuple(size_t n) { tuple<vector<Ts>...> ts; for(size_t i=0;i<n;i++) read_tuple_impl<decltype(ts), 0, Ts...>(ts); return ts; } //END CUT HERE #ifndef call_from_test signed main(){ return 0; } #endif #ifndef call_from_test #include<bits/stdc++.h> using namespace std; #endif //BEGIN CUT HERE template<typename F> struct FixPoint : F{ FixPoint(F&& f):F(forward<F>(f)){} template<typename... Args> decltype(auto) operator()(Args&&... args) const{ return F::operator()(*this,forward<Args>(args)...); } }; template<typename F> inline decltype(auto) MFP(F&& f){ return FixPoint<F>{forward<F>(f)}; } //END CUT HERE #ifndef call_from_test //INSERT ABOVE HERE signed main(){ return 0; } #endif #ifndef call_from_test #include<bits/stdc++.h> using namespace std; #endif //BEGIN CUT HERE struct Sack{ using F = function<void(int)>; int n; vector<int> sz,hvy,big; vector<vector<int> > G,Q; F expand,shrink,query,reset; Sack(int n,F expand,F shrink,F query,F reset): sz(n,1),hvy(n,-1),big(n,0),G(n),Q(n), expand(expand),shrink(shrink), query(query),reset(reset){} void add_edge(int u,int v){ G[u].emplace_back(v); G[v].emplace_back(u); } void add_query(int v,int k){ Q[v].emplace_back(k); sz[v]++; } void add(int v,int p,int x){ if(x==1) expand(v); else shrink(v); for(int u:G[v]) if(u!=p&&!big[u]) add(u,v,x); } void dfs(int v=0,int p=-1,bool k=0){ for(int u:G[v]) if(u!=p&&u!=hvy[v]) dfs(u,v,0); if(~hvy[v]){ dfs(hvy[v],v,1); big[hvy[v]]=1; } add(v,p,1); for(int k:Q[v]) query(k); if(~hvy[v]) big[hvy[v]]=0; if(!k) add(v,p,0),reset(v); } void build(int v=0,int p=-1){ for(int u:G[v]){ if(u==p) continue; build(u,v); if(hvy[v]<0||sz[hvy[v]]<sz[u]) hvy[v]=u; sz[v]+=sz[u]; } if(p==-1) dfs(v,p); } }; //END CUT HERE #ifndef call_from_test //INSERT ABOVE HERE signed ECR002_E(){ using ll = long long; int n; scanf("%d",&n); vector<int> c(n); for(int i=0;i<n;i++) scanf("%d",&c[i]); vector<int> cnt(n+1,0); vector<ll> ans(n,0); int mx=0; ll res=0; auto expand= [&](int v){ cnt[c[v]]++; if(mx<cnt[c[v]]){ mx=cnt[c[v]]; res=0; } if(mx==cnt[c[v]]) res+=c[v]; }; auto shrink=[&](int v){cnt[c[v]]--;}; auto query =[&](int v){ans[v]=res;}; auto reset =[&](int v){(void)v;mx=res=0;}; Sack sc(n,expand,shrink,query,reset); for(int i=1;i<n;i++){ int x,y; scanf("%d %d",&x,&y); x--;y--; sc.add_edge(x,y); } for(int i=0;i<n;i++) sc.add_query(i,i); sc.build(); // sc.dfs(); for(int i=0;i<n;i++){ if(i) printf(" "); printf("%lld",ans[i]); } puts(""); return 0; } /* verified on 2019/11/23 http://codeforces.com/contest/600/problem/E */ signed CFR316_D(){ int n,q; scanf("%d %d",&n,&q); vector<int> c(n),dep(n); vector<int> vs(q),hs(q),ans(q); vector<int> cnt(n+1,0),odd(n+1,0); auto flip= [&](int v){ odd[dep[v]]-=(cnt[dep[v]]>>c[v])&1; cnt[dep[v]]^=(1<<c[v]); odd[dep[v]]+=(cnt[dep[v]]>>c[v])&1; }; auto query =[&](int k){ans[k]=odd[hs[k]]<=1;}; auto reset =[&](int v){(void)v;}; Sack sc(n,flip,flip,query,reset); for(int i=1;i<n;i++){ int p; scanf("%d",&p); p--; sc.add_edge(p,i); } { auto &G=sc.G; function<void(int,int,int)> dfs= [&](int v,int p,int d){ dep[v]=d; for(int u:G[v]){ if(u==p) continue; dfs(u,v,d+1); } }; dfs(0,-1,1); } char* buf = new char[500500]; scanf("%s",buf); for(int i=0;i<n;i++) c[i]=buf[i]-'a'; for(int i=0;i<q;i++){ scanf("%d %d",&vs[i],&hs[i]); vs[i]--; sc.add_query(vs[i],i); } sc.build(); // sc.dfs(); for(int i=0;i<q;i++) puts(ans[i]?"Yes":"No"); return 0; } /* verified on 2019/11/23 http://codeforces.com/contest/570/problem/D */ signed CFR130_E(){ int n; scanf("%d",&n); vector<int> dep(n),rs; vector<int> vs,hs,ans; vector<int> cnt(n+1,0); auto expand=[&](int v){cnt[dep[v]]++;}; auto shrink=[&](int v){cnt[dep[v]]--;}; auto query =[&](int k){ans[k]=cnt[dep[vs[k]]+hs[k]]-1;}; auto reset =[&](int v){(void)v;}; Sack sc(n,expand,shrink,query,reset); for(int i=0;i<n;i++){ int p; scanf("%d",&p); p--; if(~p) sc.add_edge(p,i); else rs.emplace_back(i); } sc.build(); vector<vector<int> > ps(20,vector<int>(n,-1)); { auto &G=sc.G; function<void(int,int,int)> dfs= [&](int v,int p,int d){ ps[0][v]=p; dep[v]=d; for(int u:G[v]){ if(u==p) continue; dfs(u,v,d+1); } }; for(int r:rs) dfs(r,-1,1); } int q; scanf("%d",&q); vs.assign(q,0); hs.assign(q,0); ans.assign(q,0); for(int k=0;k+1<20;k++) for(int i=0;i<n;i++) ps[k+1][i]=ps[k][i]<0?-1:ps[k][ps[k][i]]; auto calc=[&](int v,int k){ for(int i=0;~v&&i<20;i++) if((k>>i)&1) v=ps[i][v]; return v; }; for(int i=0;i<q;i++){ scanf("%d %d",&vs[i],&hs[i]); vs[i]--; vs[i]=calc(vs[i],hs[i]); if(~vs[i]) sc.add_query(vs[i],i); } for(int r:rs) sc.dfs(r,-1,0); for(int i=0;i<q;i++){ if(i) printf(" "); printf("%d",ans[i]); } puts(""); return 0; } /* verified on 2019/11/23 https://codeforces.com/contest/208/problem/E */ signed main(){ //ECR002_E(); //CFR316_D(); //CFR130_E(); return 0; } #endif #ifndef call_from_test #include<bits/stdc++.h> using namespace std; #endif //BEGIN CUT HERE class EulerTourForVertex{ private: vector<int> ls,rs; int pos; void dfs(int v,int p){ ls[v]=pos++; for(int u:G[v]) if(u!=p) dfs(u,v); rs[v]=pos; } public: vector< vector<int> > G; EulerTourForVertex(){} EulerTourForVertex(int n):ls(n),rs(n),G(n){} void add_edge(int u,int v){ G[u].emplace_back(v); G[v].emplace_back(u); } void build(int r=0){ pos=0; dfs(r,-1); } int idx(int v){return ls[v];} template<typename F> void exec(int v,F f){ f(ls[v],rs[v]); } }; //END CUT HERE #ifndef call_from_test signed main(){ return 0; } #endif #ifndef call_from_test #include<bits/stdc++.h> using namespace std; #endif //BEGIN CUT HERE struct LowestCommonAncestor{ int n,h; vector< vector<int> > G,par; vector<int> dep; LowestCommonAncestor(){} LowestCommonAncestor(int n):n(n),G(n),dep(n){ h=1; while((1<<h)<=n) h++; par.assign(h,vector<int>(n,-1)); } void add_edge(int u,int v){ G[u].emplace_back(v); G[v].emplace_back(u); } void dfs(int v,int p,int d){ par[0][v]=p; dep[v]=d; for(int u:G[v]) if(u!=p) dfs(u,v,d+1); } void build(int r=0){ dfs(r,-1,0); for(int k=0;k+1<h;k++) for(int v=0;v<n;v++) if(~par[k][v]) par[k+1][v]=par[k][par[k][v]]; } int lca(int u,int v){ if(dep[u]>dep[v]) swap(u,v); for(int k=0;k<h;k++) if((dep[v]-dep[u])>>k&1) v=par[k][v]; if(u==v) return u; for(int k=h-1;k>=0;k--) if(par[k][u]!=par[k][v]) u=par[k][u],v=par[k][v]; return par[0][u]; } int distance(int u,int v){ return dep[u]+dep[v]-dep[lca(u,v)]*2; } }; //END CUT HERE #ifndef call_from_test signed main(){ return 0; } #endif #ifndef call_from_test #include<bits/stdc++.h> using namespace std; #define call_from_test #include "eulertourforvertex.cpp" #include "lowestcommonancestor.cpp" #undef call_from_test #endif /** * @see https://smijake3.hatenablog.com/entry/2019/09/15/200200 */ //BEGIN CUT HERE struct AuxiliaryTree : EulerTourForVertex{ using super = EulerTourForVertex; LowestCommonAncestor lca; vector<vector<int>> T; AuxiliaryTree(){} AuxiliaryTree(int n):super(n),lca(n),T(n){} void build(int r=0){ super::build(r); lca.G=super::G; lca.build(r); } void add_aux_edge(int u,int v){ T[u].emplace_back(v); T[v].emplace_back(u); } using super::idx; void query(vector<int> &vs){ assert(!vs.empty()); sort(vs.begin(),vs.end(), [&](int a,int b){return idx(a)<idx(b);}); vs.erase(unique(vs.begin(),vs.end()),vs.end()); int k=vs.size(); stack<int> st; st.emplace(vs[0]); for(int i=0;i+1<k;i++){ int w=lca.lca(vs[i],vs[i+1]); if(w!=vs[i]){ int l=st.top();st.pop(); while(!st.empty()&&lca.dep[w]<lca.dep[st.top()]){ add_aux_edge(st.top(),l); l=st.top();st.pop(); } if(st.empty()||st.top()!=w){ st.emplace(w); vs.emplace_back(w); } add_aux_edge(w,l); } st.emplace(vs[i+1]); } while(st.size()>1){ int c=st.top();st.pop(); add_aux_edge(st.top(),c); } } void clear(const vector<int> &ws){ for(int w:ws) T[w].clear(); } }; //END CUT HERE #ifndef call_from_test signed main(){ return 0; } #endif #ifndef call_from_test #include <bits/stdc++.h> using namespace std; #endif //BEGIN CUT HERE template<typename V> V compress(V vs){ sort(vs.begin(),vs.end()); vs.erase(unique(vs.begin(),vs.end()),vs.end()); return vs; } template<typename T> map<T, int> dict(const vector<T> &vs){ map<T, int> res; for(int i=0;i<(int)vs.size();i++) res[vs[i]]=i; return res; } map<char, int> dict(const string &s){ return dict(vector<char>(s.begin(),s.end())); } //END CUT HERE #ifndef call_from_test //INSERT ABOVE HERE signed main(){ return 0; } #endif #undef call_from_test signed main(){ cin.tie(0); ios::sync_with_stdio(0); const char newl = '\n'; using ll = long long; using P = pair<int, ll>; int n,q; cin>>n>>q; vector<vector<P>> G(n+1); AuxiliaryTree H(n+1); for(int i=1;i<n;i++){ int a,b; ll c; cin>>a>>b>>c; G[a].emplace_back(b,c); G[b].emplace_back(a,c); H.add_edge(a,b); } // add 0 for root H.add_edge(0,1); H.build(0); const ll INF = 1e15; G[0].emplace_back(1,INF); vector<ll> dep(n+1); MFP([&](auto dfs,int v,int p,ll d)->void{ dep[v]=d; for(auto [u,c]:G[v]) if(u!=p) dfs(u,v,d+c); })(0,-1,0); auto [type,vs,ts,ls]=read_tuple<int, int, ll, ll>(q); // vanish vertices vector<int> rs(q); for(int i=0;i<q;i++){ if(type[i]!=0) continue; int r=vs[i]; ll d=dep[vs[i]]-ls[i]; for(int k=H.lca.h-1;k>=0;k--){ int p=H.lca.par[k][r]; if(~p and d<=dep[p]) r=p; } rs[i]=H.lca.par[0][r]; } vector<ll> pos; for(int i=0;i<q;i++) pos.emplace_back(ts[i]+dep[vs[i]]); pos=compress(pos); BIT<int> bit(pos.size()); vector<int> cs(q); for(int i=0;i<q;i++) cs[i]=lower_bound(pos.begin(),pos.end(),ts[i]+dep[vs[i]])-pos.begin(); // inverse of ss vector<int> rev(n+1); queue<P> que; que.emplace(0,q); vector<int> ans(q); while(!que.empty()){ auto [L,R]=que.front();que.pop(); if(L+1==R) continue; int M=(L+R)>>1; vector<int> ss; for(int i=L;i<M;i++){ if(type[i]==0){ ss.emplace_back(vs[i]); ss.emplace_back(rs[i]); } } for(int i=M;i<R;i++) if(type[i]==1) ss.emplace_back(vs[i]); if(ss.empty()){ que.emplace(L,M); que.emplace(M,R); continue; } ss.emplace_back(0); H.query(ss); int m=ss.size(); for(int i=0;i<m;i++) rev[ss[i]]=i; vector<vector<int>> add(m),sub(m); for(int i=L;i<M;i++){ if(type[i]==0){ add[rev[vs[i]]].emplace_back(i); sub[rev[rs[i]]].emplace_back(i); } } auto expand=[&](int v){ for(int i:add[v]) bit.add0(cs[i],+1); for(int i:sub[v]) bit.add0(cs[i],-1); }; auto shrink=[&](int v){ for(int i:add[v]) bit.add0(cs[i],-1); for(int i:sub[v]) bit.add0(cs[i],+1); }; auto query=[&, type = type](int i){ if(type[i]==1) ans[i]+=bit.sum0(cs[i]); }; auto reset=[&](int){}; Sack S(m,expand,shrink,query,reset); for(int v:ss) for(int u:H.T[v]) if(v<u) S.add_edge(rev[u],rev[v]); for(int i=L;i<M;i++){ if(type[i]==0){ S.add_query(rev[vs[i]],i); S.add_query(rev[rs[i]],i); } } for(int i=M;i<R;i++) if(type[i]==1) S.add_query(rev[vs[i]],i); S.build(rev[0]); H.clear(ss); que.emplace(L,M); que.emplace(M,R); } for(int i=0;i<q;i++) if(type[i]==1) cout<<ans[i]<<newl; return 0; }