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maksim-mshp2020-03-12 18:54:17
Pascal
maksim-mshp, 2020-03-12 18:54:17

Explain what Status: Byte := $00 means?

Hello!
I have Pascal code

const
  theEndTerminated = 2000000000;
 
var
  Status : Byte := $00;
  // 1 бит - последовательность возрастающая
  // 2 бит - последовательность убывающая
  // 3 бит - в последовательности есть равные числа
  
var
  count, N1, N2 : Integer;
  
begin
  count := 0;
  Read(N1);
  while N1 <> theEndTerminated do
    begin
      count += 1;
      
      Read(N2);
      if N2 <> theEndTerminated then
        begin
          if N1 < N2 then Status := Status or $01;
          if N1 > N2 then Status := Status or $02;
          if N1 = N2 then Status := Status or $04;
        end;
        
      N1 := N2;
    end;
    
  WriteLn(count);
  case Status of
    1 : WriteLn('ASCENDING'); // строго возрастающая
    2 : WriteLn('DESCENDING'); // строго убывающая
    4 : WriteLn('CONSTANT'); // постоянная
    5 : WriteLn('WEAKLY ASCENDING'); // неубывающая
    6 : WriteLn('WEAKLY DESCENDING'); // невозрастающая
  else
    WriteLn('RANDOM'); // случайная
  end;
end.


Please explain what the lines do
var
  Status : Byte := $00;

Status := Status or $01
What is Status := Byte? And how to use it?

In general, it is required to translate the code into Python, please help if you can.

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1 answer(s)
H
HemulGM, 2020-03-13
@HemulGM

$00. $ - means that the number is written in hexadecimal system.
Byte - data type - byte. Number 0-255.
Or - in this case it is a logical operation "or" with numbers.

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