Cod sursa(job #523129)

Utilizator camelia_popescuPopescu Camelia camelia_popescu Data 17 ianuarie 2011 09:51:47
Problema Secventa Scor 40
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.63 kb
#include<fstream>

using namespace std;

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

int n, k, i, poz1,poz2,mm,dr,st;
int v[500001],dq[500001];

void dreapta(int i)
{
	while(st<=dr && v[dq[dr]]>=v[i])
		--dr;
}

void stanga(int i)
{
	if(i-dq[st]==k)
		++st;
}

int main()
{
	in>>n>>k;
	for(i=1;i<=n;i++)
		in>>v[i];
	st=1;
	dr=0;
	for(i=1;i<=k;i++)
	{
		dreapta(i);
		dq[++dr]=i;
	}
	mm = v[dq[st]];
	for(;i<=n;i++)
	{
		dreapta(i);
		stanga(i);
		dq[++dr]=i;
		if(v[dq[st]]>mm)
		{	
			mm = v[dq[st]];
			poz1=i-k+1;
			poz2=i;
		}	
	}
	out<<poz1<<" "<<poz2<<" "<<mm;
	return 0;
}