A number of questions have been asked about the programming challenges on the website Interview Street. For example, thisthis, thisthis, thisthis, thisthis and thisthis.
What should our policy be for these? To me, some seem perfectly reasonable, while others are not. Should we worry about whether the contests for these problems are still open? Should we insist the questions not be focused on code (many of them are currently focused on algorithms, but I could imagine they might also be focused on data structures or another relevant area)?