public IList <Problem> GetProblemsByIds([FromBody] GetProblemsByIdsViewModel getProblemByIdsViewModel)
 {
     return(_getProblemsService.GetProblemsByIds(getProblemByIdsViewModel));
 }
 public IList <Problem> GetProblemsByIds(GetProblemsByIdsViewModel getProblemByIdsViewModel)
 {
     return(_problemService.GetProblemsByIds(getProblemByIdsViewModel.problemIds));
 }