Cod sursa(job #46669)

Utilizator Bluedrop_demonPandia Gheorghe Bluedrop_demon Data 2 aprilie 2007 20:43:03
Problema Secventa Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.28 kb
// Problema secventa

#include <stdio.h>
#define MAX       500001
#define MAXIM     32000

int sir[MAX];
int nr[MAX][2];
long ul, pr;

int main()
{
    long n, k, i, q;
    int max;
    freopen( "secventa.in" , "rt", stdin );
             scanf( "%ld %ld", &n, &k );
             for( i=1; i<=n; i++ ) scanf( "%d", &sir[i] );
             ul = 1; pr = 1;
             q = 1;
             nr[1][1] = sir[1];
             nr[1][0] = 1;
             max = -MAXIM;
             for( i=2; i<=n; i++ )
                  {
                       while( ( ul > pr-1 ) && ( sir[i] < nr[ul][1] ) ) ul--;
                       ul++; 
                       nr[ul][1] = sir[i]; 
                       nr[ul][0] = i; 
                       if( i - nr[pr][0]+1 > k ) pr++;
//                       while( ( i - nr[pr][0]+1 > k ) && ( pr < ul+1 ) ) pr++;
                       if( ( pr < ul+1 ) && ( nr[pr][1] > max ) )
                           {
                                q = nr[pr][0];
                                max = nr[pr][1];
                           }    
                  }
                  
    fclose( stdin );
    
    freopen( "secventa.out", "wt", stdout );
             printf( "%ld %ld %d\n", q, q+k-1, max );
    fclose( stdout );
    return 0;
}