Cod sursa(job #2036292)

Utilizator segal_ftw3Luncanu Sergiu segal_ftw3 Data 10 octombrie 2017 16:18:27
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.15 kb
#include <fstream>
#include <deque>
#include <cstring>
#define Nmax 500001
using namespace std;
ifstream f("secventa.in"); ofstream g("secventa.out");
int n,k,rez,st,dr,v[Nmax];
deque <int> D;
char s[Nmax*7];
int lg,semn;
int main()
{   f>>n>>k;
/*
    f.get();
    f.getline(s, sizeof(s));
    lg=strlen(s);
    int i=0;
    for(int l=1; l<=n+1; l++)
    {
        semn=1;
        while(s[i]!=' ' && i<lg)
        {
            if(s[i]=='-')
            {
                semn=-1;
                i++;
            }
            v[l]=v[l]*10+s[i]-'0';
            i++;
        }
        i++;
        v[l]*=semn;
    }
*/
    for(int i=1;i<=n;i++) f>>v[i];
    rez=-Nmax;
    D.push_back(1);

    for(int i=2; i<=n; i++)
    {
        while(!D.empty() && v[i]<=v[D.back()])
            D.pop_back();
        D.push_back(i);
        while(!D.empty() && i-D.front()>=k)
            D.pop_front();

        if(!D.empty() && i>=k && v[D.front()]>rez)
        {
            rez=v[D.front()];
            st=i-k+1;
            dr=i;
        }
    }

    g<<st<<' '<<dr<<' '<<rez;

    f.close();
    g.close();
    return 0;
}