Cod sursa(job #1278293)

Utilizator gapdanPopescu George gapdan Data 28 noiembrie 2014 17:37:21
Problema Secventa Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.71 kb
#include<cstdio>
#include<deque>
#define INF 100001
#define NMAX 500001
using namespace std;
int n,k,i,poz,st,dr;
int a[NMAX];
deque<int>d;
int main()
{
    freopen("secventa.in","r",stdin);
    freopen("secventa.out","w",stdout);
    scanf("%d%d",&n,&k);
    for (i=1;i<=n;++i) scanf("%d",&a[i]);
    a[0]=-INF;
    for (i=1;i<=n;++i)
    {
        while(!d.empty() && a[d.back()]>=a[i]) d.pop_back();
        d.push_back(i);
        if (d.front()==i-k) d.pop_front();
        if (i>=k)
            if (a[d.front()]>=a[poz])
            {
                poz=d.front();
                dr=i;
                st=dr-k+1;
            }
    }
    printf("%d %d %d",st,dr,a[poz]);
    return 0;
}