uses crt;
var
a:array[1..20]of integer;
i,kol:integer;
begin clrscr;
randomize;
for i:=1 to 20 do
begin
a[i]:=random(10)-5;
write(a[i],' ');
end;
kol:=0;
for i:=2 to 20 do
if (a[i]=0) and ((a[i-1]<0) or (a[i-1]=0)) then inc(kol);
writeln;
writeln('kol-vo=',kol);
readkey;
end.