Cod sursa(job #1507652)

Utilizator MarghescuGabriel Marghescu Marghescu Data 21 octombrie 2015 19:40:57
Problema Secventa Scor 60
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.11 kb
#include <fstream>
#include <string>
using namespace std;
ifstream f("secventa.in");
ofstream g("secventa.out");
int n,k,deq[500001],a[500001];
int minim=-30001,p1;
char s[500001];
int main()
{
    f>>n>>k;
    f.getline(s,500001,EOF);
    n=0;
    int semn=1;
    for(int i=0;s[i];i++)
    {
        semn=1;
        if(s[i]=='-')
        {
             ++i;
             semn=-1;
        }
        if(isdigit(s[i]))
        {
            ++n;
            for(;isdigit(s[i]);i++)
                a[n]=a[n]*10+(s[i]-'0');
            a[n]*=semn;
        }
    }
    int prim=1,ultim=0;
    for(int i=1;i<=n;i++)
    {
        while(prim<=ultim&&a[i]<=a[deq[ultim]])
            ultim--;
        ultim++;
        deq[ultim]=i;
        if(deq[prim]==i-k)
            prim++;
        if(i>=k)
        {
            if(minim<a[deq[prim]])
            {
                minim=a[deq[prim]];
                p1=i;
            }
            else
                if(deq[prim]==minim && prim<p1)
                    p1=i;
        }
    }
    g<<p1-k+1<<" "<<p1<<" "<<minim;
    return 0;
}