Cod sursa(job #1064774)

Utilizator andrei_diaconuAndrei Diaconu andrei_diaconu Data 22 decembrie 2013 12:52:08
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.88 kb
#include <fstream>
#include <cstring>
using namespace std;

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

int n, k, elem, a[500001], deq[500001], i, st=1, dr, j, Max=-30010, sts, drs, l=1;
char ch[4000005];
int main()
{
    f>>n>>k;
    f.get();
    f.get(ch,4000005);
    for (i=0; ch[i]!=0; i++)
    {
        if(ch[i] >= '0' && ch[i] <= '9')
        {
            if (ch[i-1] == '-')
                a[l] = (-1) * (ch[i]-'0');
            else
                a[l] = ch[i] - '0';
            l++;
        }
    }
    
    for (i=1; i<=n; i++)
    {
        while (st<=dr && a[i] <= a[deq[dr]])
            dr--;
        deq[++dr]=i;
        if (i-k == deq[st])
            st++;
        if (i>=k)
        {
            if (a[deq[st]] > Max)
            {
                Max=a[deq[st]];
                drs=i;
            }
        }
    }
    g<<drs-k+1<<" "<<drs<<" "<<Max;
    return 0;
}