結果

問題 No.902 Query ζone
ユーザー tko919tko919
提出日時 2022-02-05 04:46:48
言語 C++17
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 718 ms / 5,000 ms
コード長 9,720 bytes
コンパイル時間 3,781 ms
コンパイル使用メモリ 232,764 KB
実行使用メモリ 23,616 KB
最終ジャッジ日時 2023-09-02 06:26:00
合計ジャッジ時間 13,584 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge12
このコードへのチャレンジ（β）

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 1 ms
4,376 KB
testcase_01 AC 6 ms
4,376 KB
testcase_02 AC 7 ms
4,376 KB
testcase_03 AC 6 ms
4,376 KB
testcase_04 AC 6 ms
4,376 KB
testcase_05 AC 7 ms
4,376 KB
testcase_06 AC 508 ms
23,616 KB
testcase_07 AC 512 ms
23,336 KB
testcase_08 AC 505 ms
23,404 KB
testcase_09 AC 515 ms
23,356 KB
testcase_10 AC 517 ms
23,548 KB
testcase_11 AC 516 ms
23,404 KB
testcase_12 AC 515 ms
23,464 KB
testcase_13 AC 718 ms
23,404 KB
testcase_14 AC 707 ms
23,596 KB
testcase_15 AC 713 ms
23,324 KB
testcase_16 AC 689 ms
23,412 KB
testcase_17 AC 702 ms
23,444 KB
testcase_18 AC 714 ms
23,472 KB
testcase_19 AC 713 ms
23,320 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

diff # 

#line 1 "library/Template/template.hpp"
#include <bits/stdc++.h>
using namespace std;

#define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define ALL(v) (v).begin(),(v).end()
using ll=long long int;
const int inf = 0x3fffffff;
const ll INF = 0x1fffffffffffffff;
template<typename T>inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<typename T>inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
#line 2 "library/Utility/fastio.hpp"
#include <unistd.h>

class FastIO{
    static constexpr int L=1<<16;
    char rdbuf[L];
    int rdLeft=0,rdRight=0;
    inline void reload(){
        int len=rdRight-rdLeft;
        memmove(rdbuf,rdbuf+rdLeft,len);
        rdLeft=0,rdRight=len;
        rdRight+=fread(rdbuf+len,1,L-len,stdin);
    }
    inline bool skip(){
        for(;;){
            while(rdLeft!=rdRight and rdbuf[rdLeft]<=' ')rdLeft++;
            if(rdLeft==rdRight){
                reload();
                if(rdLeft==rdRight)return false;
            }
            else break;
        }
        return true;
    }
    template<typename T,enable_if_t<is_integral<T>::value,int> =0>inline bool _read(T& x){
        if(!skip())return false;
        if(rdLeft+20>=rdRight)reload();
        bool neg=false;
        if(rdbuf[rdLeft]=='-'){
            neg=true;
            rdLeft++;
        }
        x=0;
        while(rdbuf[rdLeft]>='0' and rdLeft<rdRight){
            x=x*10+(neg?-(rdbuf[rdLeft++]^48):(rdbuf[rdLeft++]^48));
        }
        return true;
    }
    template<typename T,enable_if_t<is_floating_point<T>::value,int> =0>inline bool _read(T& x){
        if(!skip())return false;
        if(rdLeft+20>=rdRight)reload();
        bool neg=false;
        if(rdbuf[rdLeft]=='-'){
            neg=true;
            rdLeft++;
        }
        x=0;
        while(rdbuf[rdLeft]>='0' and rdbuf[rdLeft]<='9' and rdLeft<rdRight){
            x=x*10+(rdbuf[rdLeft++]^48);
        }
        if(rdbuf[rdLeft]!='.')return true;
        rdLeft++;
        T base=.1;
        while(rdbuf[rdLeft]>='0' and rdbuf[rdLeft]<='9' and rdLeft<rdRight){
            x+=base*(rdbuf[rdLeft++]^48);
            base*=.1;
        }
        if(neg)x=-x;
        return true;
    }
    inline bool _read(char& x){
        if(!skip())return false;
        if(rdLeft+1>=rdRight)reload();
        x=rdbuf[rdLeft++];
        return true;
    }
    inline bool _read(string& x){
        if(!skip())return false;
        for(;;){
            int pos=rdLeft;
            while(pos<rdRight and rdbuf[pos]>' ')pos++;
            x.append(rdbuf+rdLeft,pos-rdLeft);
            if(rdLeft==pos)break;
            rdLeft=pos;
            if(rdLeft==rdRight)reload();
            else break;
        }
        return true;
    }
    template<typename T>inline bool _read(vector<T>& v){
        for(auto& x:v){
            if(!_read(x))return false;
        }
        return true;
    }

    char wtbuf[L],tmp[50];
    int wtRight=0;
    inline void flush(){
        fwrite(wtbuf,1,wtRight,stdout);
        wtRight=0;
    }
    inline void _write(const char& x){
        if(wtRight>L-32)flush();
        wtbuf[wtRight++]=x;
    }
    inline void _write(const string& x){
        for(auto& c:x)_write(c);
    }
    template<typename T,enable_if_t<is_integral<T>::value,int> =0>inline void _write(T x){
        if(wtRight>L-32)flush();
        if(x==0){
            _write('0');
            return;
        }
        else if(x<0){
            _write('-');
            if (__builtin_expect(x == std::numeric_limits<T>::min(), 0)) {
                switch (sizeof(x)) {
                case 2: _write("32768"); return;
                case 4: _write("2147483648"); return;
                case 8: _write("9223372036854775808"); return;
                }
            }
            x=-x;
        }
        int pos=0;
        while(x!=0){
            tmp[pos++]=char((x%10)|48);
            x/=10;
        }
        rep(i,0,pos)wtbuf[wtRight+i]=tmp[pos-1-i];
        wtRight+=pos;
    }
    template<typename T>inline void _write(const vector<T>& v){
        rep(i,0,v.size()){
            if(i)_write(' ');
            _write(v[i]);
        }
    }
public:
    FastIO(){}
    ~FastIO(){flush();}
    inline void read(){}
    template <typename Head, typename... Tail>inline void read(Head& head,Tail&... tail){
        assert(_read(head));
        read(tail...); 
    }
    template<bool ln=true,bool space=false>inline void write(){if(ln)_write('\n');}
    template <bool ln=true,bool space=false,typename Head, typename... Tail>inline void write(const Head& head,const Tail&... tail){
        if(space)_write(' ');
        _write(head);
        write<ln,true>(tail...); 
    }
};

/**
 * @brief Fast IO
 */
#line 3 "sol.cpp"

struct LinkCutTree{
    struct Node{
        Node *L=nullptr,*R=nullptr,*P=nullptr;
        int size=1,id;
        bool rev=0;
        ll val=0,sum=0;
        Node(int i,ll v):id(i),val(v),sum(v){}
        void toggle(){
            swap(L,R);
            rev^=1;
        }
        void eval(){
            if(rev){
                if(L)L->toggle();
                if(R)R->toggle();
                rev=0;
            }
        }
        void recalc(){
            size=1;
            sum=val;
            if(L){
                size+=L->size;
                sum+=L->sum;
            }
            if(R){
                size+=R->size;
                sum+=R->sum;
            }
        }
        bool isroot(){return !P or (P->L!=this and P->R!=this);}
        void rotate(){
            Node *p,*pp,*c;
            p=P,pp=P->P;
            if(p->L==this){
                c=R;
                R=p;
                p->L=c;
            }
            else{
                c=L;
                L=p;
                p->R=c;
            }
            if(pp){
                if(pp->L==p)pp->L=this;
                if(pp->R==p)pp->R=this;
            }
            P=pp;
            p->P=this;
            if(c)c->P=p;
            p->recalc();
            recalc();
        }
        void splay(){
            eval();
            while(!isroot()){
                Node *q=P;
                if(q->isroot()){
                    q->eval();
                    eval();
                    rotate();
                }
                else{
                    Node *r=q->P;
                    r->eval();
                    q->eval();
                    eval();
                    if(r->L==q){
                        if(q->L==this){
                            q->rotate();
                            rotate();
                        }
                        else{
                            rotate();
                            rotate();
                        }
                    }
                    else{
                        if(q->R==this){
                            q->rotate();
                            rotate();
                        }
                        else{
                            rotate();
                            rotate();
                        }
                    }
                }
            }
        }
    };
    using Np=Node*;
    LinkCutTree(){}
    Np make(int id,ll v){return new Node(id,v);}
    Np expose(Np v){
        Np pre=nullptr;
        for(Np cur=v;cur;cur=cur->P){
            cur->splay();
            cur->R=pre;
            cur->recalc();
            pre=cur;
        }
        v->splay();
        return pre;
    }
    void link(Np v,Np p){
        expose(v);
        expose(p);
        v->P=p;
        p->R=v;
        p->recalc();
    }
    void cut(Np v){
        expose(v);
        v->L->P=nullptr;
        v->L=nullptr;
        v->recalc();
    }
    void evert(Np v){
        expose(v);
        v->toggle();
        v->eval();
    }
    Np lca(Np u,Np v){
        expose(u);
        return expose(v);
    }
    Np kth(Np v,int k){
        expose(v);
        while(v){
            v->eval();
            if(v->L and v->L->size>k)v=v->L;
            else{
                if(v->L)k-=v->L->size;
                if(k==0)return v;
                k--;
                v=v->R;
            }
        }
        return nullptr;
    }
}; using Np=LinkCutTree::Np;

FastIO io;
int main(){
    int n;
    io.read(n);
    LinkCutTree tree;
    vector<Np> vs(n),es;
    rep(i,0,n)vs[i]=tree.make(i,0);
    int ecnt=0;
    rep(i,0,n-1){
        int u,v,w;
        io.read(u,v,w);
        es.push_back(tree.make(ecnt++,w));
        tree.evert(vs[u]);
        tree.link(vs[u],es.back());
        tree.evert(vs[v]);
        tree.link(vs[v],es.back());
    }
    int q;
    io.read(q);
    while(q--){
        int t;
        io.read(t);
        if(t==1){
            int u,v,w,x;
            io.read(u,v,w,x);
            tree.evert(vs[u]);
            tree.cut(vs[v]);
            es.push_back(tree.make(ecnt++,x));
            tree.evert(vs[v]);
            tree.link(vs[v],es.back());
            tree.evert(vs[w]);
            tree.link(vs[w],es.back());
        }
        else{
            int k;
            io.read(k);
            vector<int> x(k);
            io.read(x);
            sort(ALL(x),[&](int u,int v){
                tree.evert(vs[0]);
                int lca=tree.lca(vs[u],vs[v])->id;
                if(u==lca)return true;
                if(v==lca)return false;
                tree.evert(vs[lca]);
                int pu=tree.kth(vs[u],1)->id;
                int pv=tree.kth(vs[v],1)->id;
                return pu<pv;
            });
            ll ret=0;
            rep(i,0,k){
                int u=x[i],v=x[(i+1)%k];
                tree.evert(vs[u]);
                tree.expose(vs[v]);
                ret+=vs[v]->sum;
            }
            io.write(ret/2);
        }
    }
    return 0;
}
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