Cod sursa(job #799634)

Utilizator octrarOctav M. octrar Data 19 octombrie 2012 17:25:28
Problema Secventa Scor 90
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.73 kb
# include <fstream>
# define NMAX 500001

using namespace std;

ifstream fin("secventa.in");
ofstream fout("secventa.out");

int n, k;
int deque[NMAX], a[NMAX];
int p, q;
int pmax;
int poz;

int main()
{
    int i;
    pmax = -30001;
    fin >> n >> k;
    p = 1, q = 0;
    for(i = 1; i <= n; ++ i) fin >> a[i];
    for(i = 1; i <= n; ++ i)
    {
        while(p <= q && a[i] <= a[deque[q]]) -- q;
        deque[++ q] = i;
        if(i >= k) {
            if(i > k && i-k == deque[p]) ++ p;
            if(pmax < a[deque[p]])
            {
                pmax = a[deque[p]];
                poz = i;
            }
        }
    }
    fout << poz-k+1 << " " << poz << " " << pmax << "\n";
    return 0;
}