8.bak

c语言实用程序百例

    main( )
    {   int  a[11] , l , h , m , y , x , *p ;      
        for ( y=1 ; y<=10 ; y++) 
         scanf ("%d" , &a[y] ) ;          
       scanf ( "%d" , &x) ;
         l=1 ; h=10 ; p=a ;
       while (l<=h)
         {  m= (l+h)/2 ;
            if (x= = *(p+m) )   break ;
            else if (x>*(p+m) )   l=m+1 ;
            else   h=m - 1 ;
         }                          
      if ( l<= h)  
       printf ("%d is the position %d\n) ,x,m) ;  
     else    
       printf (" there is no %d\n" ,x );
  }