Cod sursa(job #2121684)

Utilizator patcasrarespatcas rares danut patcasrares Data 4 februarie 2018 09:13:54
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.39 kb
#include<fstream>
#include<iostream>
#include<cctype>
#include<cstring>
#include<vector>
#include<algorithm>
#define pb push_back
#define x first
#define y second
#include<deque>
#include<cstring>
#define DN 500005
using namespace std;
ifstream fin("secventa.in");
ofstream fout("secventa.out");
int n,k,a[DN],st,dr,ma=-(1<<28),semn=1,poz,f;
deque<pair<int,int> >d;
char s[7*DN];
int main()
{
    fin>>n>>k;
    fin.getline(s,7*DN);
    fin.getline(s,7*DN);
    f=strlen(s);
    for(int i=0;i<f;i++)
    {
        if(s[i]==' '||i==0)
        {
            a[poz]*=semn;
            semn=1;
            poz++;
        }
        if(s[i]=='-')
            semn=-1;
        if(isdigit(s[i]))
            a[poz]=a[poz]*10+s[i]-'0';
    }
    a[n]*=semn;
    for(int i=1;i<=n;i++)
    {
        while(1)
        {
            if(d.empty())
                break;
            if(d.back().y<a[i])
                break;
            d.pop_back();
        }
        d.pb({i,a[i]});
        while(1)
        {
            if(d.empty())
                break;
            if(d.front().x>=i-k+1)
                break;
            d.pop_front();
        }
        if(i>=k)
        {
            if(d.front().y>ma)
            {
                ma=d.front().y;
                st=i-k+1;
                dr=i;
            }
        }
    }
    fout<<st<<' '<<dr<<' '<<ma;
}