function IsNul(var a: myArr; len: integer): integer;
var
count, i: integer;
begin
count:=0;
for i:=1 to len do
begin
if ( a[i] = 0 ) then
inc(count);
end;
NotNul:=count;
end;
function IsNul(var a: myArr; len: integer): integer;
var
count, i: integer;
begin
count:=0;
for i:=1 to len do
begin
if ( a[i] = 0 ) then
inc(count);
end;
NotNul:=count;
end;