Cod sursa(job #811811)

Utilizator cristi_berceanuFMI - Cristi Berceanu cristi_berceanu Data 12 noiembrie 2012 22:35:47
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.55 kb
#include<cstdio>
#define nmax 500005
int main()
{	
	int in=0,sf=0,max=-(1<<30),i,n,k,front,back,deque[nmax],a[nmax];
	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]);
	front=1;back=0;
	for(i=1;i<=n;i++)
	{
		while(front<=back&&a[i]<=a[deque[back]]) back--;
		deque[++back]=i;
		
		if(deque[front]==i-k)
			front++;
		
		if(max<a[deque[front]]) 
		{
			max=a[deque[front]];
			in=i-k+1;
			sf=i;
		}
	}
	printf("%d %d %d",in,sf,max);
	
return 0;
}