Submission #792154

#	Time	Username	Problem	Language	Result	Execution time	Memory
792154		winter0101	Sprinkler (JOI22_sprinkler)	C++14	9 / 100	698 ms	97032 KiB

sprinkler

#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
#define pil pair<int,long long>
#define pll pair<long long,long long>
#define eb emplace_back
#define int long long
const int maxn=2e5+9;
int n;
long long l;
vector<int>a[maxn];
long long mul[maxn][41];
int dep[maxn];
int p[maxn];
long long h[maxn];
void dfs(int u,int par){
for (auto v:a[u]){
    if(v==par)continue;
    p[v]=u;
    dep[v]=dep[u]+1;
    dfs(v,u);
}
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("temp.INP","r",stdin);
    //freopen("temp.OUT","w",stdout);
    cin>>n>>l;
    for1(i,1,n-1){
    int u,v;
    cin>>u>>v;
    a[u].pb(v);
    a[v].pb(u);
    }
    dfs(1,0);
    for1(i,1,n)cin>>h[i];
    for1(i,1,n){
    for1(j,0,40){
    mul[i][j]=1;
    }
    }
    int q;
    cin>>q;
    for1(i,1,q){
    int t;
    cin>>t;
    if (t==1){
       int x,dis;
       long long w;
       cin>>x>>dis>>w;
       int u=x;
       if (dis==0){
        h[x]=(h[x]*w)%l;
        continue;
       }
       queue<int>ver;
       int v=x;
       for1(j,0,dis){
       ver.push(v);
       if (p[v]!=0)v=p[v];
       else break;
       }
       for1(j,0,dis){
       mul[u][dis-j]=(mul[u][dis-j]*w)%l;
       int len=dis-j;
       //cout<<u<<" "<<len<<'\n';
       while (!ver.empty()){
        int t1=ver.front();
        int dd=dep[t1]-dep[u];
        //cout<<dd<<" "<<u<<'\n';
        if (dd==len){
            ver.pop();
        }
        else if (dd<len)break;
        else if (dd>len){
        h[t1]=(h[t1]*w)%l;
        //cerr<<t<<'\n';
        ver.pop();
        }
       }
       if (p[u]!=0)u=p[u];
       }
       while (!ver.empty()){
        int t1=ver.front();
        ver.pop();
        h[t1]=(h[t1]*w)%l;
        //cerr<<i<<" "<<t<<'\n';
       }
    }
    else {
        int x;
        cin>>x;
        long long nw=h[x];
        int u=x;
        for1(j,0,40){
        nw=(nw*mul[u][j])%l;
        //cout<<u<<" "<<mul[u][j]<<" "<<j<<'\n';
        if (p[u]!=0)u=p[u];
        else break;
        }
        cout<<nw<<'\n';
    }
    }
    //for1(i,1,n)cout<<h[i]<<'\n';
}

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