Pascal

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Archivierte Version vom 2008-12-02T08:24:34+00:00. Aktuelle Version

An welchem Datum war Ostern in den vergangenen Jahren?

function EasterSunday(year: Integer): String;
var
  a,b,c,d,f,g : Real;
  e: Integer;

begin
  if year < 100 then year := year + 1900; 
  a := year mod 19;
  b := year mod 4;
  c := year mod 7;
  f := 19*a + 24;
  d := f - (trunc(f/30) * 30);
  g := (5 + 2*b + 4*c + 6*d);
  e := Trunc((g - (trunc(g/7) * 7)) + d + 22);
  if e <= 31 then
    Result := IntToStr(e) + '.' + '03.' + IntToStr(year)
  else
  begin
    if e - 31 >= 26 then e:=19 else e:= e - 31;
    Result := IntToStr(e) + '.' + '04.' + IntToStr(year)
  end;
end;

<eval rows="10" rrows="10"> var year: integer; begin</eval>

 year := random(100)+1900;
 writeln('In year '+intToStr(year)+' was eastern sunday on '+EasterSunday(year));

end.

Fibonacci-Berechnung

function fib(n: integer): integer;
  var tmp: integer;
  begin
    if n=1 then result := 1
    else if n=2 then result := 1
    else begin
      tmp := fib(n-1);
      result := tmp + fib(n-2);
    end;
  end;

<eval> begin</eval>

 writeln(intToStr(fib(8)));

end.

Funktionen

function Pascal(n,r: integer): integer;
  begin
    result := fac(n) div (fac(r) * fac(n-r));
  end;

function comb(n,k: integer): integer;
  var i: integer;
      r: real;

  begin
    r:=1;
    if (k>n-k) then k:=n-k; 
    for i:=1 to k do r:=r / i; 
    for i:=n downto n-k+1 do r:=r*i;
    if r - trunc(r) >= 0.5 then result := trunc(r)+1
    else result := trunc(r);
  end;

function fac(x: integer): integer;
  var i: integer;
  begin
    if (x=0) then result := 1
    else begin
      result := x;
      for i:=x-1 downto 1 do result := result*i;
    end;
  end;

<eval rows="12"> var i,j: integer;</eval>

 begin
   for i:=1 to 9 do begin
     for j:=0 to i do write(intToStr(comb(i,j))+'  ');
     writeln('');
   end;

   writeln(); writeln();

   for i:=1 to 9 do begin
     for j:=0 to i do write(intToStr(Pascal(i,j))+'  ');
     writeln('');
   end;
 end.

Pascal

An welchem Datum war Ostern in den vergangenen Jahren?

Fibonacci-Berechnung

Funktionen

Suche