Cod sursa(job #1524418)

Utilizator aetherAlexandra Vanca aether Data 14 noiembrie 2015 01:25:41
Problema Secventa Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.25 kb
# include <fstream>
using namespace std;
ifstream f("secventa.in");
ofstream g("secventa.out");
int a[500001], c[500001];
char sir[500001];
int main()
{
    int n, k, s=0, d=0, maxi=-32001, i, prim, ulti;
    f>>n>>k;
    f.get();
    f.getline(sir, 500001, EOF);
    f.close();
    int semn, index=0;
    for (i=0; sir[i]; i++)
    {
        semn=1;
        if (sir[i]=='-')
        {
            semn=-1;
            i++;
        }
        if (isdigit(sir[i]))
        {
            ++index;
            for (; isdigit(sir[i]); i++)
                a[index]=a[index]*10+(sir[i]-'0');
            a[index]*=semn;
        }
    }

    prim=ulti=1;
    c[prim]=a[1];
    for (i=2; i<=n; i++)
    {
        while (prim<=ulti && a[i]<a[c[ulti]])
            ulti--;
        c[++ulti]=i;

        while (c[prim]<=i-k)
            prim++;

        if (i>=k)
        {
            if (a[c[prim]]>maxi)
            {
                maxi=a[c[prim]];
                s=i-k+1;
                d=i;
            }
            else
                if (a[c[prim]]==maxi && c[prim]<s)
                {
                    s=i-k+1;
                    d=i;
                }
        }
    }
    g<<s<<' '<<d<<' '<<maxi;
    return 0;
}