old_contents: def round_scores(student_scores):
      """Round all provided student scores.
  
      :param student_scores: list of student exam scores as float or int.
      :return: list of student scores *rounded* to nearest integer value.
      """
  
      rounded = []
      while student_scores:
          rounded.append(round(student_scores.pop()))
      return rounded
  
  
  def count_failed_students(student_scores):
      """Count the number of failing students in the provided list.
  
      :param student_scores: list of integer student scores.
      :return: integer count of student scores at or below 40.
      """
  
      non_passing = 0
      for score in student_scores:
          if score <= 40:
              non_passing += 1
      return non_passing
  
  
  def above_threshold(student_scores, threshold):
      """Determine how many of the provided student scores were 'the best' based on the provided threshold.
  
      :param student_scores: list of integer scores
      :param threshold :  integer
      :return: list of integer scores that are at or above the "best" threshold.
      """
  
      above = []
  
      for score in student_scores:
          if score >= threshold:
              above.append(score)
      return above
  
  
  def letter_grades(highest):
      """Create a list of grade thresholds based on the provided highest grade.
  
      :param highest: integer of highest exam score.
      :return: list of integer score thresholds for each F-A letter grades.
      """
  
      increment = round((highest - 40)/4)
      scores = []
      for score in range(41, highest, increment):
          scores.append(score)
      return scores
  
  
  def student_ranking(student_scores, student_names):
      """Organize the student's rank, name, and grade information in ascending order.
  
       :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 perfect_score(student_info):
      """Create a list that contains the name and grade of the first student to make a perfect score on the exam.
  
      :param student_info: list of [<student name>, <score>] lists
      :return: first `[<student name>, 100]` or `[]` if no student score of 100 is found.
      """
  
      result = []
  
      for item in student_info:
          if item[1] == 100:
              result = item
              break
  
      return result
  
new_contents: def round_scores(student_scores):
      """Round all provided student scores.
  
      :param student_scores: list of student exam scores as float or int.
      :return: list of student scores *rounded* to nearest integer value.
      """
  
      rounded = []
      while student_scores:
          rounded.append(round(student_scores.pop()))
      return rounded
  
  
  def count_failed_students(student_scores):
      """Count the number of failing students out of the group provided.
  
      :param student_scores: list of integer student scores.
      :return: integer count of student scores at or below 40.
      """
  
      non_passing = 0
      for score in student_scores:
          if score <= 40:
              non_passing += 1
      return non_passing
  
  
  def above_threshold(student_scores, threshold):
      """Determine how many of the provided student scores were 'the best' based on the provided threshold.
  
      :param student_scores: list of integer scores
      :param threshold :  integer
      :return: list of integer scores that are at or above the "best" threshold.
      """
  
      above = []
  
      for score in student_scores:
          if score >= threshold:
              above.append(score)
      return above
  
  
  def letter_grades(highest):
      """Create a list of grade thresholds based on the provided highest grade.
  
      :param highest: integer of highest exam score.
      :return: list of integer score thresholds for each F-A letter grades.
      """
  
      increment = round((highest - 40)/4)
      scores = []
      for score in range(41, highest, increment):
          scores.append(score)
      return scores
  
  
  def student_ranking(student_scores, student_names):
      """Organize the student's rank, name, and grade information in ascending order.
  
       :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 perfect_score(student_info):
      """Create a list that contains the name and grade of the first student to make a perfect score on the exam.
  
      :param student_info: list of [<student name>, <score>] lists
      :return: first `[<student name>, 100]` or `[]` if no student score of 100 is found.
      """
  
      result = []
  
      for item in student_info:
          if item[1] == 100:
              result = item
              break
  
      return result
  
subject: Update exemplar.py