#873927 (C++17) No.2325 Skill Tree

提出ソース

結果

問題	No.2325 Skill Tree
ユーザー	cureskol
提出日時	2023-05-28 13:51:49
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	502 ms / 3,000 ms
コード長	8,785 bytes
コンパイル時間	3,311 ms
コンパイル使用メモリ	246,456 KB
実行使用メモリ	40,792 KB
最終ジャッジ日時	2024-06-08 04:16:32
合計ジャッジ時間	20,081 ms
ジャッジサーバーID （参考情報）	judge5 / judge1

このコードへのチャレンジ
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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	3 ms 5,376 KB
testcase_02	AC	3 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	74 ms 8,264 KB
testcase_08	AC	128 ms 18,740 KB
testcase_09	AC	117 ms 13,944 KB
testcase_10	AC	214 ms 29,384 KB
testcase_11	AC	200 ms 21,748 KB
testcase_12	AC	478 ms 40,772 KB
testcase_13	AC	431 ms 40,776 KB
testcase_14	AC	393 ms 40,776 KB
testcase_15	AC	408 ms 40,776 KB
testcase_16	AC	398 ms 40,776 KB
testcase_17	AC	482 ms 40,776 KB
testcase_18	AC	481 ms 40,772 KB
testcase_19	AC	493 ms 40,776 KB
testcase_20	AC	422 ms 40,776 KB
testcase_21	AC	375 ms 40,648 KB
testcase_22	AC	459 ms 40,776 KB
testcase_23	AC	443 ms 40,776 KB
testcase_24	AC	494 ms 40,776 KB
testcase_25	AC	502 ms 40,776 KB
testcase_26	AC	440 ms 40,776 KB
testcase_27	AC	398 ms 40,772 KB
testcase_28	AC	386 ms 40,780 KB
testcase_29	AC	387 ms 40,772 KB
testcase_30	AC	399 ms 40,776 KB
testcase_31	AC	386 ms 40,756 KB
testcase_32	AC	336 ms 40,780 KB
testcase_33	AC	334 ms 40,780 KB
testcase_34	AC	335 ms 40,776 KB
testcase_35	AC	428 ms 40,644 KB
testcase_36	AC	457 ms 40,776 KB
testcase_37	AC	476 ms 40,792 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#pragma region template
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
 
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 PFOR(v) for(bool f=true; (f ? exchange(f,false) : next_permutation(ALL(v)));)
 
#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())
#define SZ(v) int(v.size())
 
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;
#define VS(n,s) vector<string> s(n);cin>>s;
 
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;
}

#ifdef __DEBUG
 #include <debug>
#else
 #define debug(...) void(0)
#endif

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;}
TYPE(T) void clear(T&v){ v=decltype(v)(); }
 
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) vector<pair<T,int>> query_sort(const vector<T>&v){
  vector<pair<T,int>> res(v.size());
  REP(i,v.size())res[i]={v[i],i};
  SORT(res);
  return res;
}
TYPE(T) void add(vector<T>&v,T a=1){ AFOR(p,v)p+=a; }
TYPE(T) T rev(T a){ REVERSE(a);return a; }
TYPE(T) void fin(T a){cout<<a<<'\n';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);}
int digit(char c){ return (c>='0' and c<='9' ? c-'0' : -1);}
ll sqrtll(ll a){ 
  for(ll b=sqrt(a);b*b<=a;b++)if(b*b==a)return b;
  for(ll b=sqrt(a);b>=0 and b*b>=a;b--)if(b*b==a)return b;
  return -1;
}
#pragma endregion template

template<typename T>
struct WeightedEdge{
  WeightedEdge()=default;
  WeightedEdge(int from,int to,T weight):from(from),to(to),weight(weight){}
  int from,to;
  T weight;
  operator int()const{ return to; }
};

template<typename T>
struct WeightedGraph{
  int n;
  using weight_type=T;
  using edge_type=WeightedEdge<T>;
  vector<edge_type> edges;
protected:
  vector<int> in_deg;
  bool prepared;
  class OutgoingEdges{
    WeightedGraph* g;
    int l,r;
  public:
    OutgoingEdges(WeightedGraph* g,int l,int r):g(g),l(l),r(r){}
    edge_type* begin(){ return &(g->edges[l]); }
    edge_type* end(){ return &(g->edges[r]); }
    edge_type& operator[](int i){ return g->edges[l+i]; }
    int size()const{ return r-l; }
  };
  class ConstOutgoingEdges{
    const WeightedGraph* g;
    int l,r;
  public:
    ConstOutgoingEdges(const WeightedGraph* g,int l,int r):g(g),l(l),r(r){}
    const edge_type* begin()const{ return &(g->edges[l]); }
    const edge_type* end()const{ return &(g->edges[r]); }
    const edge_type& operator[](int i)const{ return g->edges[l+i]; }
    int size()const{ return r-l; }
  };
public:
  OutgoingEdges operator[](int v){
    assert(prepared);
    return { this,in_deg[v],in_deg[v+1] };
  }
  const ConstOutgoingEdges operator[](int v)const{
    assert(prepared);
    return { this,in_deg[v],in_deg[v+1] };
  }

  bool is_prepared()const{ return prepared; }

  WeightedGraph():n(0),in_deg(1,0),prepared(false){}
  WeightedGraph(int n):n(n),in_deg(n+1,0),prepared(false){}
  WeightedGraph(int n,int m,bool directed=false,int indexed=1):
    n(n),in_deg(n+1,0),prepared(false){ scan(m,directed,indexed); }

  void resize(int n){n=n;}

  void add_arc(int from,int to,T weight){
    assert(!prepared);
    assert(0<=from and from<n and 0<=to and to<n);
    edges.emplace_back(from,to,weight);
    in_deg[from+1]++;
  }
  void add_edge(int u,int v,T weight){
    add_arc(u,v,weight);
    add_arc(v,u,weight);
  }
  void add_arc(const edge_type&e){
    add_arc(e.from,e.to,e.weight);
  }
  void add_edge(const edge_type&e){
    add_edge(e.from,e.to,e.weight);
  }

  void scan(int m,bool directed=false,int indexed=1){
    edges.reserve(directed?m:2*m);
    while(m--){
      int u,v;cin>>u>>v;u-=indexed;v-=indexed;
      T weight;cin>>weight;
      if(directed)add_arc(u,v,weight);
      else add_edge(u,v,weight);
    }
    build();
  }

  void build(){
    assert(!prepared);prepared=true;
    for(int v=0;v<n;v++)in_deg[v+1]+=in_deg[v];
    vector<edge_type> new_edges(in_deg.back());
    auto counter=in_deg;
    for(auto&&e:edges)new_edges[ counter[e.from]++ ]=e;
    edges=new_edges;
  }

  void graph_debug()const{
  #ifndef __DEBUG
    return;
  #endif
    assert(prepared);
    for(int from=0;from<n;from++){
      cerr<<from<<";";
      for(int i=in_deg[from];i<in_deg[from+1];i++)
        cerr<<"("<<edges[i].to<<","<<edges[i].weight<<")";
      cerr<<"\n";
    }
  }
};
#include <atcoder/dsu>
using namespace atcoder;

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  INT(n);
  vector<int> l(n),a(n);
  WeightedGraph<int> G(n);
  REP(i,1,n){
    cin>>l[i]>>a[i];
    a[i]--;
    G.add_arc(a[i],i,l[i]);
  }
  G.build();
  vector<int> ans(n,-1);
  queue<int> que;
  que.push(0);
  while(que.size()){
    int v=pick(que);
    for(auto e:G[v]){
      ans[e.to]=max(ans[v],e.weight);
      que.push(e.to);
    }
  }

  dsu uf(n);
  map<int,int>ans2;
  ans2[0]=1;
  map<int,vector<pi>> M;
  REP(i,1,n)M[l[i]].emplace_back(a[i],i);
  CFOR(key,ve,M){
    debug(key);
    CFOR(u,v,ve)debug(u,v);
  }

  CFOR(key,ve,M){
    CFOR(u,v,ve)uf.merge(u,v);
    ans2[key]=uf.size(0);
  }
  ans2[INF];

  INT(q);
  REP(q){
    INT(t,x);
    if(t==1){
      auto it=--ans2.upper_bound(x);
      debug(it->first, it->second);
      cout<<it->second<<'\n';
    }
    else{
      cout<<ans[--x]<<'\n';
    }
  }
}

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結果

テストケース

ソースコード