Cod sursa(job #526108)

Utilizator giuliastefGiulia Stef giuliastef Data 27 ianuarie 2011 13:49:10
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.75 kb
//Secventa

#include <fstream>
#define MAXN 500050
using namespace std;
int n,k,a[MAXN],deque[MAXN];
long long suma;
int main()
{
    int i,front,back,max1,start,finish;
    ifstream f("secventa.in");
    ofstream g("secventa.out");
    f>>n>>k;
    for(i=1;i<=n;i++)
     f>>a[i];
    front=1,back=0; //deque vid initial
    max1=0,start=0,finish=0;
    for(i=1;i<=n;i++)
    {
     while(front<=back && a[i]<a[deque[back]]) back--;
     deque[++back]=i;
     if(deque[front]==i-k) front++;
     if(i>=k)
      if(a[deque[front]]>max1)
      {
       max1=a[deque[front]];
       start=deque[front];
       finish=deque[back];
      }
    }
    g<<start<<" "<<finish<<" "<<max1<<"\n";
    f.close();
    g.close();
    return 0;
}