1. Ввод с клавиатуры
var
p,i:integer;
a:array [1..10] of integer;

begin
p:=-1;

for i:=1 to 10 do begin
readln (a [i]);
end;

while p = -1 do begin
for i:=1 to 10 do begin
if (a [i] < 3) then p:=1;
end;
end;

for i:=1 to 10 do begin
if (a [i] < 3) then
p:=p*a [i];
end;
writeln (p);
end.

2.Рандом

var
p,i:integer;
a:array [1..10] of integer;

begin
p:=-1;

for i:=1 to 10 do begin
a [i]:=Random (10);
end;
write ('Наш массив: ');
for i:=1 to 10 do begin
write (a [i]);
write (' ');
end;
writeln (' ');
while p = -1 do begin
for i:=1 to 10 do begin
if (a [i] < 3) then p:=1;
end;
end;

for i:=1 to 10 do begin
if (a [i] < 3) then
p:=p*a [i];
end;
writeln ('Произведение = ',p);
end.