Cod sursa(job #2071958)

Utilizator Seba951Sebastian Boerescu Seba951 Data 21 noiembrie 2017 11:00:01
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.86 kb
#include <fstream>
#include <cstring>

using namespace std;

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

const int N=500001;
int v[N], d[N];
char s[7*N+1];

int main()
{
    int val, n, l, st, dr, i, maxi=0, x, k, semn, ib;
    in>>x>>k>>ws;
    in.getline(s, 7*N+1);
    val=0;
    semn=1;
    n=0;
    l=strlen(s);
    for(i=0; i<l; i++)
    {
        if(isdigit(s[i])) val=val*10+(s[i]-'0');
        else if(s[i]==' ')
        {
            v[++n]=val*semn;
            val=0;
            semn=1;
        }
        else semn=-semn;
    }
    v[++n]=val*semn;
    st=0;
    dr=-1;
    for(i=1; i<=x; i++)
    {
        if(st<=dr && d[st]==i-k) st++;
        while(st<=dr && v[i]<=v[d[dr]]) dr--;
        d[++dr]=i;
        if(v[d[st]]>maxi)
        {
            maxi=v[d[st]];
            ib=i;
        }
    }
    out<<ib-k+1<<" "<<ib<<" "<<maxi;
    return 0;
}