Submission #1114981

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114981		AdamGS	Fire (JOI20_ho_t5)	C++17	0 / 100	13 ms	3664 KiB

ho_t5

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

struct Q{
    int l, r, time, index;
};

bool comp(const Q &q1, const Q &q2){
    return q1.time<q2.time;
}

int tree[400'007];

void Update(int v, int l, int r, int vl, int vr, int val){
    if (vl>r||vr<l) return;
    if (vl>=l&&vr<=r){
        tree[v]=max(tree[v], val);
        return;
    }
    int mid=(vl+vr)/2;
    Update(v*2, l, r, vl, mid, val);
    Update(v*2+1, l, r, mid+1, vr, val);
}

int Get(int v){
    int out=-1;
    while (v>0){
        out=max(out, tree[v]);
        v/=2;
    }
    return out;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    for (int i=0;i<400'007;i++) tree[i]=-1;
    int n, q;
    cin>>n>>q;
    int trsize=1;
    while (trsize<n) trsize<<=1;
    for (int i=0;i<n;i++){
        cin>>tree[trsize+i];
    }
    vector<Q> qv(q);
    for (int i=0;i<q;i++){
        cin>>qv[i].time>>qv[i].l>>qv[i].r;
        qv[i].index=i;
    }
    sort(qv.begin(), qv.end(), comp);
    int t=0;
    vector<int> out(q);
    for (Q qe:qv){
        int tDiff=qe.time-t;
        t=qe.time;
        for (int i=n-tDiff-1;i>=0;i--){
            Update(1, trsize+i, trsize+i+tDiff, trsize, trsize*2-1, Get(trsize+i));
        }
        out[qe.index]=Get(trsize+qe.l-1);
    }
    for (int x:out) cout<<x<<'\n';
    return 0;
}

• Subtask 1: 0 / 1
• Subtask 2: 0 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 6
• Subtask 5: 0 / 80