code: public ProblemInput getProblemInput(final String type) {
  		final String name = type.toLowerCase();
  		for (final ProblemInput input : getProblemInputs()) {
  			if (input.getName().equals(name)) {
  				return input;
  			}
  		}
  		return null;
  	}
docs: Filters and returns first problem input which name
  match the given <tt>type</tt>
  
  @param type Type of the input to retrieve (usually small or large).
  @return Corresponding input if any, <tt>null</tt> otherwise.