Cod sursa(job #253360)

Utilizator taloibogdanTaloi Bogdan Cristian taloibogdan Data 5 februarie 2009 18:24:09
Problema Secventa Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.61 kb
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
char str[4000008];
int n,k,i,a[50020],p[500005],st,dr,s,m;
int main()
{
 freopen("secventa.in","r",stdin);
 freopen("secventa.out","w",stdout);
 scanf("%d%d\n",&n,&k);
 st=1;dr=0;
 s=-1000000000;
/* for(i=1;i<=n;++i)
    {scanf("%d",&a[i]);}*/
 gets(str);
 a[1]=atoi(strtok(str," \n"));
 for(i=2;i<=n;++i)a[i]=atoi(strtok(NULL," \n"));
 for(i=1;i<=n;++i)
     {while(a[p[dr]]>=a[i]&&dr>=st)--dr;
     p[++dr]=i;
     if(i>=k)
     {if(p[st]<=i-k)++st;
      if(a[p[st]]>s){s=a[p[st]];m=i;}}}
 printf("%d %d %d\n",m-k+1,m,s);
 return 0;
}