Cod sursa(job #1261867)

Utilizator patrutoiuandreipatrutoiu andrei patrutoiuandrei Data 12 noiembrie 2014 19:45:56
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.98 kb
#include <fstream>
using namespace std;
ifstream fin("secventa.in");
ofstream fout("secventa.out");
int v[500010],d[500010],j,semn,st,dr,n,p,u,i,k,Max=-4000000;
char s[5000005];

int main(){
    fin>>n>>k;
    fin.get();
    fin.getline(s,5000002);
    j=1;
    for(i=0;s[i]!=0;i++){
        semn=1;
        if(s[i]=='-'){
            semn=-1;
            i++;
        }
        while(s[i]>='0' && s[i]<='9'){
            v[j]=v[j]*10+s[i]-'0';
            i++;
        }
        v[j]=v[j]*semn;
        j++;
    }
    p=1;
    u=1;
    d[1]=1;
    for(i=2;i<=n;i++)
    {
        while(p<=u&&v[i]<v[d[u]])
        {
            u--;
        }
        d[++u]=i;
        if(d[p]==i-k)
        {
            p++;
        }
        if(i>=k)
        {
            if(Max<v[d[p]])
            {
                st=i-k+1;
                dr=i;
                Max=v[d[p]];
            }
        }
    }
    fout<<st<<' '<<dr<<' '<<Max;





    return 0;
}