d.py

def calculate_stats(exam_results):
    max_score = max(exam_results)
    min_score = min(exam_results)
    
    return {"max": max_score, "min": min_score}
def post_exam_computation(exam_id):
    exam_results = db.get(exam_id)
    exam_stats = calculate_stats(exam_results)
    db.save(exam_stats)