[hackeroid] hscool Entrance Examination -- 98

, , , .



                           
                          
                          (1998/99  )

   1.     (, ,
,..)      , X  Y.
    ,  
 ,  ,  .

   1*.   ,      
.

   2.    (  ),  
  (X, Y, N, L, M  D),       
   N    ,   Y,  X.
     ,   
       :

                      20 21 22 23 24 25
                      19  6  7  8  9 26
                      18  5  0  1 10 ..
                      17  4  3  2 11
                      16 15 14 13 12

   2*.       ,  
    .

   3.   (  )   --
 .     ,    15
         (
   ).       
, ,   , :

...
560 CIRCLE (100,300),50
570 LINE ( 50, 250)-(150, 250)
580 LINE (150, 250)-(100, 200)
590 LINE (100, 200)-( 50, 250)
...

        ?

-----------------------------------------------------------------------------
    ,        
    :

                     -- 
,    ,  .  : cos.

                     -- 
,      .  : sin.

            
.    ,   --  
,    .     
.  360     (2*3.1415926=6.2831852) .

         --  .   
   .     
.

                                                                    AtH//HPG


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