Cod sursa(job #247470)

Utilizator nparfene2004Parfene Narcis nparfene2004 Data 23 ianuarie 2009 07:26:09
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.79 kb
#include<stdio.h>
#include<stdlib.h>

using namespace std ;

int q[500001] ;
long ind[500001] ;


int main()
{
 int x, max ;
 long poz, pr, ul, n, k, i, p ;
  
 freopen("secventa.in","r",stdin) ;
 freopen("secventa.out","w",stdout) ;

 scanf("%ld %ld",&n,&k) ;

 // calculez minimul din primele k:
 pr = 0 ; ul = -1 ;
 for (i=1; i<=k; i++)
  {
   scanf("%d",&x) ;
   while ((pr<=ul)&&(q[ul] >= x)) ul-- ;
   q[++ul] = x ;
   ind[ul] = i ;
  }
 max = q[pr] ;
 poz = 1 ;
 p = 1;
 // calculez restul:
 for ( ; i<=n; i++)
  {
   scanf("%d",&x) ;
   while ((q[ul] >= x) && (pr<=ul)) ul-- ;
   q[++ul] = x ;
   ind[ul] = i ;
   p++ ;
   if (ind[pr] <= i-k) pr++ ;
   if (max < q[pr]) { max = q[pr] ;poz = p; }
  }

 printf("%ld %ld %d\n",poz,poz+k-1,max) ;
 return 0 ;
}