Submission #814726

#	Time	Username	Problem	Language	Result	Execution time	Memory
814726		konstantys	Sprinkler (JOI22_sprinkler)	C++14	38 / 100	2523 ms	215616 KiB

sprinkler

#include<iostream>
#include<cstdlib>
#include<vector>
#include<cassert>
#define ll long long
using namespace std;
int n,q,a,b,c,ojc[200005],d,ojc2[81];
ll L,tab[200005],x;
ll t[200005][42];
ll f[200005][81];
ll p[200005];
vector<int> v[200005];
vector<int> v2[42];
void DFS(int x,int f){
    ojc[x]=f;
    for(auto i:v[x]) if(i!=f) DFS(i,x);
}
void dod2(int x,int p,int k,ll z){
    assert(k==(p+1));
    t[x][p]*=z,t[x][p]%=L;
}
void dod(int x,int k,ll z){
    //od 0 do k
    p[x]*=z,p[x]%=L;
    for(auto u:v2[k])
        f[x][u]*=z,f[x][u]%=L;
}
int main(){
    ios_base::sync_with_stdio(0);
    cin>>n>>L;
    for(int i=1;i<n;i++){
        cin>>a>>b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    for(int i=1;i<=n;i++){
        for(int u=0;u<=41;u++) t[i][u]=1;
        for(int u=0;u<80;u++) f[i][u]=1;
        p[i]=1;
        cin>>tab[i];
    }
    for(int u=1;u<=63;u++) ojc2[u]=u>>1;
    ojc2[64]=0;
    for(int u=65;u<=78;u++) ojc2[u]=((u-63)>>1)+63; //fenwick liczy odleglosci od 1
    for(int u=1;u<=32;u++){
        int p=1,k=32,m=1;
        while(true){
            if(k==u){
                v2[u].push_back(m);
                break;
            }
            if(p>u) break;
            if(u>((p+k)>>1)){
                v2[u].push_back(m*2);
                m=m*2+1;
                p=((p+k)>>1)+1;
            }else{
                m=m*2;
                k=((p+k)>>1);
            }

        }
    }
    DFS(1,-1);
    //return 0;
    //cerr<<v2[0].size()<<" rozmiar\n";
    cin>>q;
    for(int i=0;i<q;i++){
        cin>>a;
        if(a==2){
            cin>>b;
            d=0,c=b;
            ll wyn=tab[b];
            //cerr<<wyn<<"\n";
            wyn*=p[c];
            wyn%=L;
            while(true){
                wyn*=t[c][d];
                wyn%=L;
                if(d!=0){
                    wyn*=t[c][d-1];
                    wyn%=L;
                    if(d<=32)
                    a=d+31;
                    else
                    a=d+38;
                    wyn*=f[c][a];
                    wyn%=L;
                    //cerr<<"f["<<c<<"]["<<a<<"]="<<f[c][a]<<"\n";
                    while(a!=0){
                        a=ojc2[a];
                        //cerr<<"f["<<c<<"]["<<a<<"]="<<f[c][a]<<"\n";
                        wyn*=f[c][a];
                        wyn%=L;
                    }
                }
                c=ojc[c];
                if(c==-1) break;
                d++;
                if(d>40) break;
            }
            cout<<wyn<<"\n";
        }else{
            cin>>b>>c>>x;
            d=0;
            while(true){
                if(b==-1 || d>c) break;
                if(b!=1 && c!=d){
                    //cerr<<b<<" "<<c-d-1<<"\n";
                    dod2(b,c-d-1,c-d,x);
                }else{
                    //cerr<<b<<" "<<c<<"-"<<d<<" "<<" drzewo\n";
                    dod(b,c-d,x);
                }
                b=ojc[b];
                d++;
            }
        }
    }

    return 0;
}

• Subtask 1: 0 / 3
• Subtask 2: 9 / 9
• Subtask 3: 29 / 29
• Subtask 4: 0 / 12
• Subtask 5: 0 / 30
• Subtask 6: 0 / 17