1)
uses graphabc;
begin
window.IsFixedSize := true;
brush.Color := clred;
lockdrawing;
for var i := 50 to 590 do
begin
circle(i, 220, 50);
redraw;
window.Clear;
end;
window.Close;
end.
2)
var
n: integer;
begin
read(n);
write(n div 60);
end.
3)В приложении.
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