Cod sursa(job #2499969)

Utilizator AndreeaGherghescuAndreea Gherghescu AndreeaGherghescu Data 27 noiembrie 2019 00:28:49
Problema Secventa Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.23 kb
#include <iostream>
#include <fstream>
#include <deque>

using namespace std;

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

int a[500001];
deque <int> q;
char s[4000000];

int main()
{
    int n,k,semn=1,nr,cate=0;
    in>>n>>k;
    in.get();
    in.getline(s,3999999);
    int i=0;
    while (s[i])
    {
        if (s[i]==' ') i++;
        else if (s[i]=='-') {semn=-1;i++;}
        else
        {
            nr=0;
            while (s[i] && s[i]>='0' && s[i]<='9')
            {
                nr=nr*10+(s[i]-48);
                i++;
            }
            a[++cate]=nr*semn;
            semn=1;
        }

    }
    for (i=1;i<=k;i++)
    {
        int x=a[i];
        while (!q.empty() && a[q.back()]>=x)
            q.pop_back();
        q.push_back(i);
    }
    int maxx=a[q.front()];
    int ind=k;
    for (i=k+1;i<=n;i++)
    {
        int x=a[i];
        while (!q.empty() && a[q.back()]>=x)
            q.pop_back();
        q.push_back(i);
        if (q.front()<i-k+1)
            q.pop_front();

        if (a[q.front()]>maxx)
        {
            maxx=a[q.front()];
            ind=i;
        }
    }
    out<<ind-k+1<<' '<<ind<<' '<<maxx;
    return 0;
}