Submission #1113129

#	Time	Username	Problem	Language	Result	Execution time	Memory
1113129		vjudge1	Editor (BOI15_edi)	C++17	100 / 100	118 ms	28260 KiB

edi

#include<bits/stdc++.h>
using namespace std;
int vl[300100],bj[300100][20],lev[300100];
int go(int x,int t){
    if(lev[x]<t)return x;
    for(int i=20;i--;)
        if(lev[bj[x][i]]>=t)
            x=bj[x][i];
    return bj[x][0];
}
int main(){
    cin.tie(0)->sync_with_stdio(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;i++){
        int x;
        cin>>x;
        if(x<0){
            lev[i]=-x;
            bj[i][0]=go(go(i-1,lev[i])-1,lev[i]);
            for(int j=1;j<20;j++)
                bj[i][j]=bj[bj[i][j-1]][j-1];
        }else vl[i]=x;
        cout<<vl[go(i,1)]<<'\n';
    }
}

• Subtask 1: 20 / 20
• Subtask 2: 15 / 15
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37