Cod sursa(job #1984207)

Utilizator FredyLup Lucia Fredy Data 23 mai 2017 23:15:20
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.11 kb
#include <iostream>
#include <fstream>
#include <deque>

using namespace std;

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

#define lim 500001
int v[lim],n,k,rez,st,dr;
deque <int> D;

#define maxb 300
char buff[maxb];
int pos=0;

int get_int()
{
    int nr=0;
    while(buff[pos]<'0' || buff[pos]>'9')
     if(++pos==maxb) fin.read(buff,maxb),pos=0;

    while(buff[pos]>='0' && buff[pos]<='9')
    {
        nr=nr*10+buff[pos]-'0';
        if(++pos==maxb) fin.read(buff,maxb),pos=0;
    }
    return nr;
}


int main()
{
    fin>>n>>k;
    for(int i=1; i<=n; i++)
        fin>>v[i];
    rez=-lim;
    D.push_back(1);

    for(int i=2; i<=n; i++)
    {
        while(!D.empty() && v[i]<=v[D.back()])
            D.pop_back();
        D.push_back(i);
        while(!D.empty() && i-D.front()>=k)
            D.pop_front();

        if(!D.empty() && i>=k && v[D.front()]>rez)
        {
            rez=v[D.front()];
            st=i-k+1;
            dr=i;
        }
    }

    fout<<st<<' '<<dr<<' '<<rez;

    fin.close();
    fout.close();
    return 0;
}