Cod sursa(job #2350693)

Utilizator AnnaLipianuLipianu Ana AnnaLipianu Data 21 februarie 2019 17:36:18
Problema Secventa Scor 10
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.48 kb
#include <cstdio>
#include <deque>
#define NMAX 500000
using namespace std;
deque <int> val;
deque <int> poz;
int v[NMAX+5];
int main()
{
    int nmax,l,pozi,n,k,i,nr,lmax;
    freopen("secventa.in","r",stdin);
    freopen("secventa.out","w",stdout);
    scanf("%d%d",&n,&k);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&v[i]);
        if(i<=k)
        {
            while(!val.empty()&&v[i]<val.back())
            {
                val.pop_back();
                poz.pop_back();
            }
            val.push_back(v[i]);
            nr=val.back();
            poz.push_back(i);
        }
    }
    nmax=val.front();
    l=lmax=k;
    nr=val.front();
    pozi=k;
    for(i=k+1;i<=n;i++)
    {
        while(!val.empty()&&val.back()>v[i])
        {
            poz.pop_back();
            val.pop_back();
        }
        val.push_back(v[i]);
        poz.push_back(i);
        while(!poz.empty()&&poz.back()-poz.front()+1>k)
        {
            poz.pop_front();
            val.pop_front();
        }
        if(val.front()==nr)
            l++;
        else
        {
            if(nr>nmax)
            {
                lmax=l;
                nmax=nr;
                pozi=i;
            }
            nr=val.front();
            l=k;
        }
    }
    if(nr>nmax)
            {
                lmax=l;
                nmax=nr;
                pozi=n;
            }
    printf("%d %d %d",pozi-lmax+1,pozi,nmax);
    return 0;
}