until n in [5..30]

program Ex_09_30_s4;

uses wincrt;

type

tab =array[1..30] of integer;

var t:tab;

n,i:integer;

procedure saisie (var t:tab; var n : integer);

begin repeat

writeln('Donner n entre 5..30');

readln(n);

until n in [5..30];

for i:= 1 to n do repeat

writeln('Donner T ',i);

readln(t[i]);

until (t[i]>=1000) and (t[i]<=9999);

end;

function bonheur(x:integer):boolean;

var tx:tab;

j,diff:integer;

test:boolean;

begin

tx[1]:=x div 1000;

tx[2]:=x mod 1000 div 100;

tx[3]:=x mod 100 div 10;

tx[4]:=x mod 10;

diff:=tx[2]-tx[1];

test:=true;

for j:=3 to 4 do

if not(((tx[j]>tx[j-1]) and (tx[j]-tx[j-1]=diff)) or ((tx[j]<tx[j-1]) and (tx[j]-tx[j test:=false;

bonheur:=test;

end;

procedure Affiche(t:tab; n :integer);

begin

for i:=1 to n do write(t[i],' | ');

end;

begin

saisie(t,n);

affiche(t,n);

writeln;

writeln('Les nombres Porte-Bonheur du tableau sont :');

for i:=1 to n do

if bonheur(t[i]) then write (t[i],' | ');

end.