(student_scores, student_names)
return results
:param student_scores: list of scores in descending order.
     :param student_names: list of names in descending order by exam score.
     :return: list of strings in format ["<rank>. <student name>: <score>"].
:param student_scores: list of scores in descending order.
     :param student_names: list of names in descending order by exam score.
     :return: list of strings in format ["<rank>. <student name>: <score>"].
: param student_scores : list of scores in descending order . : param student_names : list of names in descending order by exam score . : return : list of strings in format [ <rank > . <student name > : <score > ] .
def student_ranking(student_scores, student_names):
    """
     :param student_scores: list of scores in descending order.
     :param student_names: list of names in descending order by exam score.
     :return: list of strings in format ["<rank>. <student name>: <score>"].
     """

    results = []
    for index, name in enumerate(student_names):
        rank_string = str(index + 1) + ". " + name + ": " + str(student_scores[index])
        results.append(rank_string)

    return results
def student_ranking ( student_scores , student_names ) : results = [ ] for index , name in enumerate ( student_names ) : rank_string = str ( index + 1 ) + ". " + name + ": " + str ( student_scores [ index ] ) results . append ( rank_string ) return results