Cod sursa(job #1144114)

Utilizator andrei_diaconuAndrei Diaconu andrei_diaconu Data 16 martie 2014 17:23:53
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.03 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, p, u, j, Max=-30010, sts, drs, l, m=1, nr=0;
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')
        {
            nr = nr*10 + (ch[i]-'0');
        }
        if (ch[i]=='-')
            m=-1;
        if (ch[i]==' ')
        {
            l++;
            a[l]=nr*m;
            m=1;
            nr=0;
        }
    }
    a[++l]=nr*m;
    p=1;
    u=0;
    nr=0;
    for (i=1; i<=n; i++) {
        while (a[deq[u]] > a[i] && u>=p)
            u--;
        deq[++u]=i;
        while (i-nr>k) {
            nr++;
            if (nr==deq[p])
                p++;
        }
        if (i-nr==k) {
            if (Max < a[deq[p]]) {
                Max=a[deq[p]];
                sts=nr+1;
                drs=i;
            }
        }
    }
    g<<sts<<" "<<drs<<" "<<Max;
    return 0;
}