Cod sursa(job #126967)

Utilizator perticas_catalinperticas catalin perticas_catalin Data 23 ianuarie 2008 00:08:09
Problema Secventa Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.72 kb
#include<stdio.h>
FILE*fin=fopen("secventa.in","r");
FILE*fout=fopen("secventa.out","w");
int main()
{
  int i,j,n,k,max,s,st,dr,v[500001],dec[500001],ind[500001];
  fscanf(fin,"%d%d",&n,&k);
  for(i=1;i<=n;i++) fscanf(fin,"%d",&v[i]);
  fclose(fin);
  st=dr=1;
  dec[1]=v[1]; 
  ind[1]=1;s=k;
  j=1;
  for(i=2;i<=k;i++)
  {
    while(j>=st&&dec[j]>v[i]) j--;
    j++;dr=j;
    dec[dr]=v[i];
    ind[dr]=i;
  }
  max=dec[1];
  for(;i<=n;i++)
  {
    if(ind[st]<(i-k+1)) st++;
    while(j>=st&&dec[j]>v[i]) j--;
    j++;dr=j;
    dec[dr]=v[i]; 
    ind[dr]=i;
    if(max<dec[st])
    {
      max=dec[st]; 
      s=i;
    }
  }
  fprintf(fout,"%d%c%d%c%d",s-k+1,' ',s,' ',max);
  fclose(fout);return 0;}