NDOJ/judge/contest_format/ultimate.py

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2023-09-01 00:35:56 +00:00
from django.utils.translation import gettext_lazy
from judge.contest_format.ioi import IOIContestFormat
from judge.contest_format.registry import register_contest_format
from django.db.models import Min, OuterRef, Subquery
# This contest format only counts last submission for each problem.
@register_contest_format("ultimate")
class UltimateContestFormat(IOIContestFormat):
name = gettext_lazy("Ultimate")
def update_participation(self, participation):
cumtime = 0
score = 0
format_data = {}
queryset = participation.submissions
if self.contest.freeze_after:
queryset = queryset.filter(
submission__date__lt=participation.start + self.contest.freeze_after
)
queryset = (
queryset.values("problem_id")
.filter(
id=Subquery(
queryset.filter(problem_id=OuterRef("problem_id"))
.order_by("-id")
.values("id")[:1]
)
)
.values_list("problem_id", "submission__date", "points")
)
for problem_id, time, points in queryset:
if self.config["cumtime"]:
dt = (time - participation.start).total_seconds()
if points:
cumtime += dt
else:
dt = 0
format_data[str(problem_id)] = {
"time": dt,
"points": points,
}
score += points
self.handle_frozen_state(participation, format_data)
participation.cumtime = max(cumtime, 0)
participation.score = round(score, self.contest.points_precision)
participation.tiebreaker = 0
participation.format_data = format_data
participation.save()