Cod sursa(job #1815665)

Utilizator alex2kamebossPuscasu Alexandru alex2kameboss Data 25 noiembrie 2016 16:59:13
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.85 kb
#include <iostream>
#include <cstdio>
#include <deque>

using namespace std;
int a[500005];
int n, k;
deque <int> dq;
int pi,pf,vmin=-40000;
int main()
{
    freopen("secventa.in","r",stdin);
    freopen("secventa.out","w",stdout);
    scanf("%d %d\n", &n, &k);
    scanf("%d", &a[1]);
    for(int i=2;i<=n;i++)
        scanf(" %d", &a[i]);
    dq.push_back(1);
    for(int i=2;i<k;i++)
    {
        while(!dq.empty() && a[dq.back()]>a[i])
            dq.pop_back();
        dq.push_back(i);
    }
    for(int i=k;i<=n;i++)
    {
        while(!dq.empty() && a[dq.back()]>=a[i])
            dq.pop_back();
        while(!dq.empty() && dq.front()+k<=i)
            dq.pop_front();
        dq.push_back(i);
        if(a[dq.front()]>vmin)
        {
            vmin=a[dq.front()];
            pf=i;
        }
    }
    printf("%d %d %d", pf-k+1,pf,vmin);
    return 0;
}