public HttpResponse Create(string id)
{
if (!IsUserSignedIn())
{
return(Redirect("/Users/Login"));
}
var problem = _problemService.GetProblemById(id);
if (problem is null)
{
return(Error("Problem does not exist!"));
}
return(View(new SubmissionCreateViewModel {
ProblemId = id, Name = problem.Name
}));
}