21=1*2⁴+0*2³+1*2²+0*2¹+1*2⁰=10101
Const n=10;
var a: array[1..n] of integer;
i:integer; p:real;
begin
randomize;
for i:= 1 to n do
begin
a[i]:=random(111)-70;
write(a[i]:4);
end;
writeln;
p:=1;
for i:= 1 to n div 2 do p:=p*a[2*i];
writeln('p = ',p:8:0);
end.
Пример:
<span> -51 34 -17 11 35 -20 -29 -58 -55 -32
p = -13882880</span>