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Ingy döt Net 2024-10-16 18:07:41 -07:00
parent 81fd053722
commit 52a6ef48dd
10248 changed files with 63654 additions and 6775 deletions
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45
Task/Gray-code/Delphi/gray-code.delphi
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@ -1,45 +0,0 @@
program GrayCode;
{$APPTYPE CONSOLE}
uses SysUtils;
function Encode(v: Integer): Integer;
begin
Result := v xor (v shr 1);
end;
function Decode(v: Integer): Integer;
begin
Result := 0;
while v > 0 do
begin
Result := Result xor v;
v := v shr 1;
end;
end;
function IntToBin(aValue: LongInt; aDigits: Integer): string;
begin
Result := StringOfChar('0', aDigits);
while aValue > 0 do
begin
if (aValue and 1) = 1 then
Result[aDigits] := '1';
Dec(aDigits);
aValue := aValue shr 1;
end;
end;
var
i, g, d: Integer;
begin
Writeln('decimal binary gray decoded');
for i := 0 to 31 do
begin
g := Encode(i);
d := Decode(g);
Writeln(Format(' %2d %s %s %s %2d', [i, IntToBin(i, 5), IntToBin(g, 5), IntToBin(d, 5), d]));
end;
end.