def invalidate_problem(problem: Problem, save=True):
query_list = list(problem.submission_set.filter(visible=True).values("author_id", "status"))
ac_list = list(filter(lambda x: x["status"] == SubmissionStatus.ACCEPTED, query_list))
problem.ac_user_count = len(set(map(lambda x: x["author_id"], ac_list)))
problem.total_user_count = len(set(map(lambda x: x["author_id"], query_list)))
problem.ac_count = len(ac_list)
problem.total_count = len(query_list)
reward_est = 5 - (2 * problem.ac_ratio + 3 * problem.ac_user_ratio) * min(log10(problem.ac_user_count + 1), 1.2) \
+ max(6 - 2 * log10(problem.ac_user_count + 1), 0)
# reward_est = (max(reward_est, 0.) ** 2) / 10
problem.reward = max(min(reward_est, 9.9), 0.1)
for field in problem._meta.local_fields: # pylint: disable=protected-access
if field.name == "update_time":
field.auto_now = False
if save:
problem.save(update_fields=["ac_user_count", "total_user_count", "ac_count", "total_count", "reward"])
def invalidate_problem(problem: Problem, save=True):
query_list = list(problem.submission_set.all().values(
"author_id", "status"))
ac_list = list(
filter(lambda x: x["status"] == SubmissionStatus.ACCEPTED, query_list))
problem.ac_user_count = len(set(map(lambda x: x["author_id"], ac_list)))
problem.total_user_count = len(
set(map(lambda x: x["author_id"], query_list)))
problem.ac_count = len(ac_list)
problem.total_count = len(query_list)
problem.reward = max(
min(
5 - (.02 * problem.ac_ratio + .03 * problem.ac_user_ratio) *
min(log10(problem.ac_user_count + 1), 1.2) +
max(6 - 2 * log10(problem.ac_user_count + 1), 0), 9.9), 0.1)
for field in problem._meta.local_fields:
if field.name == "update_time":
field.auto_now = False
if save:
problem.save(update_fields=[
"ac_user_count", "total_user_count", "ac_count", "total_count",
"reward"
])
