Where is the mistake? [closed]

Closed due to the fact that off-topic participants VenZell , Abyx , Vladimir Martyanov , insolor , user194374 21 Jan '16 at 17:51 .

It seems that this question does not correspond to the subject of the site. Those who voted to close it indicated the following reasons:

• “Questions asking for help with debugging (“ why does this code not work? ”) Should include the desired behavior, a specific problem or error, and a minimum code for playing it right in the question . Questions without an explicit description of the problem are useless for other visitors. See How to create minimal, self-sufficient and reproducible example . " - Vladimir Martyanov, insolor, Community Spirit
• "The question is caused by a problem that is no longer reproduced or typed . Although similar questions may be relevant on this site, solving this question is unlikely to help future visitors. You can usually avoid similar questions by writing and researching a minimum program to reproduce the problem before publishing the question. " - VenZell, Abyx