for i:=1 to n do repeat write('t[',i

uses wincrt;

type

tab=array[1..40] of integer;

var t,t1,v:tab;

n:integer;

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

var i:integer;

begin repeat

write('n='); readln(n) ; until n in [5..40];

for i:=1 to n do repeat

write('t[',i,']=');

readln(t[i]);

until t[i]>0;

end;

procedure suite(var t1:tab);

var i:integer;

begin t1[1]:=1;

for i:=2 to n do begin

t1[i]:=3*t1[i-1] -1;

write(t1[i],' ');

end;

end;

function existe(t:tab;x:integer):boolean;

var i:integer;

trouve:boolean;

begin i:=0;

repeat i:=i+1;

if t[i]=x then trouve:=true else trouve:=false;

until (trouve) or (i=n);

existe:=trouve;

end;

procedure creerv(var v:tab);

var

i,j,k:integer;

begin j:=0;

for i:=1 to n do if existe(t1,t[i]) then begin

j:=j+1;

v[j]:=t[i];

end;

k:=0;

for i:= 1 to n do if existe(v,t1[i]) then begin

k:=k+1;

write(t1[i],' ') ; end;

if k=0 then write('Aucun élément de T ne correspond à un terme de la suite U ') ;

end;

begin saisie(n,t);

write('Les terme de la suite sont : ');

suite(t1);

writeln;

write('Le programme affichera : ');

creerv(v);

end.