Только цифры

исх:





[CODE]
#include
#include
#include
#include
#include
using
namespace
std
;
string
generateCaptcha
(
)
{
string choices
=
"1234567890"
;
string captcha
;
for
(
int
i
=
0
;
i
>
result
;
if
(
result
==
captcha
)
{
double
elapsed_time
=
double
(
clock
(
)
-
start_time
)
/
CLOCKS_PER_SEC
;
cout