Cod sursa(job #2309068)

Utilizator driver71528@gmail.comTerec Andrei-Sorin [email protected] Data 28 decembrie 2018 13:35:14
Problema Secventa Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.97 kb
#include <iostream>
#include <fstream>
using namespace std;


int n,k;
pair<int,int> q[5000001];
int x[5000001];
int first=0,last=-1;



int main()
{
    ifstream f("secventa.in");
    f>>n>>k;
    for(int i=1;i<=n;i++)
        f>>x[i];
    f.close();
    int a;
    for(int i=1;i<=k;i++)
    {
        while(last!=first-1 && q[last].first>x[i])
            last--;
        q[++last].first=x[i];
        q[++last].second=i;
    }
    int poz=q[first].second,dr=k,st;
    for(int i=k+1;i<=n;i++)
    {
        if(q[first].second<=i-k)
            first++;
        while(last!=first-1 && q[last].first>x[i])
            last--;
        q[++last].first=x[i];
        q[++last].second=i;
        if(x[poz]<q[first].first)
            poz=q[first].second,dr=q[last].second;
    }
    st=dr-k+1;
    x[0]=-30001;
    while(x[poz]<=x[--st]);
    st++;
    ofstream g("secventa.out");
    g<<st<<' '<<dr<<' '<<x[poz];
    g.close();
    return 0;
}