Submission #827608

#	Time	Username	Problem	Language	Result	Execution time	Memory
827608		Darren0724	Editor (BOI15_edi)	C++17	100 / 100	506 ms	29036 KiB

edi

#include<bits/stdc++.h>
using namespace std;

int v[300005];
int jump[20][300005];
int Find(int k,int lv){
    if(-v[k]<=lv)return k;
    for(int j=19;j>=0;j--){
        if(-v[jump[j][k]]>lv){
            k=jump[j][k];
        }
    }
    return jump[0][k];
}
int main(){
    int n;cin>>n;
    for(int i=1;i<=n;i++){
        cin>>v[i];
        if(v[i]<0){
            int tmp=Find(i-1,-v[i]-1)-1;
            int pa=Find(tmp,-v[i]-1);
            jump[0][i]=pa;
            for(int j=1;j<20;j++){
                jump[j][i]=jump[j-1][jump[j-1][i]];
            }
        }
        cout<<v[Find(i,0)]<<endl;
    }

    return 0;
}

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