Cod sursa(job #2031900)

Utilizator TudoseSanzianaTudose Sanziana TudoseSanziana Data 3 octombrie 2017 23:22:41
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <bits/stdc++.h>
using namespace std;

ifstream in("secventa.in");
ofstream out("secventa.out");

int n,k;
int st,dr,ans;
int dq[500005];
int v[500005];

int main()
{
    in>>n>>k;

    for(int i=1; i<=n; i++)
        in>>v[i];

    dq[1]=1;

    ans=-2e9;
    int front=1,back=1;
    for(int i=2; i<=n; i++)
    {
        while(front<=back && i-dq[front]+1>k) front++;

        while(front<=back && v[dq[back]]>=v[i]) back--;

        dq[++back]=i;

        if(i>=k && v[dq[front]]>ans)
        {
            ans=v[dq[front]];
            st=i-k+1;
            dr=i;
        }
    }

    out<<st<<' '<<dr<<' '<<ans<<'\n';

    return 0;
}