Cod sursa(job #2038262)

Utilizator GrasuneAlexandruGrasune Alexandru Mihai GrasuneAlexandru Data 13 octombrie 2017 15:56:06
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.28 kb
#include <iostream>
#include <cstdio>
#include <deque>
#define N 500005

using namespace std;
int n,k,a[N],nr,curs,l;
int maxi=-99900, psm;
char buff[N];
deque <int> D;
void adv()
{
    curs++;
    if(curs>=N)
    {
        fread(buff, 1, N, stdin);
        curs=0;
    }
}

int getInt()
{
    int nr=0, semn=1;
    while(!(buff[curs]>='0' && buff[curs]<='9'))
    {
        if(buff[curs]=='-')
            semn=-1;
        adv();
    }
    while(buff[curs]>='0' && buff[curs]<='9')
    {
        nr=nr*10+buff[curs]-'0';
        adv();
    }
    return nr*semn;
}

int main()
{
    freopen("secventa.in","r",stdin);
    freopen("secventa.out","w",stdout);

    scanf("%d %d\n",&n, &k);
    fread(buff, 1, N, stdin);
    for(int i=0;i<n;i++)
        a[i]=getInt();

    D.push_back(0);
    for(int i=1;i<n;i++)
    {
        while(!D.empty()&&a[D.back()]>=a[i])
                D.pop_back();
            D.push_back(i);

         if(i>=k-1)
        {
            if(D.front()==i-k)
                D.pop_front();
            if(a[D.front()]>maxi)
            {
                maxi=a[D.front()];
                psm=i+1;
                l=i-k+1;

            }
        }
    }

    printf("%d %d %d", psm-l+1, psm, maxi);

    return 0;
}