Cod sursa(job #1984209)

Utilizator FredyLup Lucia Fredy Data 23 mai 2017 23:20:25
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.17 kb
#include <iostream>
#include <fstream>
#include <deque>
#include <cstring>

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;
char s[lim*7];
int g,semn;


int main()
{
    fin>>n>>k;
    fin.get(s[0]);
    fin.getline(s, sizeof(s));

    g=strlen(s);
    int i=0;
    for(int l=1; l<=n+1; l++)
    {
        semn=1;
        while(s[i]!=' ' && i<g)
        {
            if(s[i]=='-')
            {
                semn=-1;
                i++;
            }
            v[l]=v[l]*10+s[i]-'0';
            i++;
        }
        i++;
        v[l]*=semn;

    }


    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;
}