Show problem limits

oioioi/contestexcl/tests.py

@@ -180,6 +180,7 @@ def _modify_contestexcl(
             ('problemstatementconfig', 0, 0, 0, 1),
             ('rankingvisibilityconfig', 0, 0, 0, 1),
             ('registrationavailabilityconfig', 0, 0, 0, 1),
+            ('limitsvisibilityconfig', 0, 0, 0, 1),
             ('balloonsdeliveryaccessdata', 0, 0, 0, 1),
             ('statistics_config', 0, 0, 0, 1),
             ('exclusivenessconfig_set', len(excl_start_date_forms), 0, 0, 1000),

oioioi/contests/controllers.py

@@ -12,6 +12,7 @@
 from django.utils.safestring import mark_safe
 from django.utils.translation import gettext_lazy as _
 from django.utils.translation import gettext_noop
+from django.db.models import Min, Max, Q
 
 from oioioi.base.utils import (
     ObjectWithMixins,
@@ -21,8 +22,10 @@
 from oioioi.base.utils.query_helpers import Q_always_true
 from oioioi.contests.models import (
     Contest,
+    ProblemInstance,
     ProblemStatementConfig,
     RankingVisibilityConfig,
+    LimitsVisibilityConfig,
     Round,
     RoundTimeExtension,
     ScoreReport,
@@ -41,8 +44,11 @@
     last_break_between_rounds,
     rounds_times,
     visible_problem_instances,
+    process_instances_to_limits,
 )
+from oioioi.newsfeed import default_app_config
 from oioioi.problems.controllers import ProblemController
+from oioioi.programs.models import Test
 
 logger = logging.getLogger(__name__)
 
@@ -586,6 +592,19 @@ def can_see_statement(self, request_or_context, problem_instance):
     def default_can_see_statement(self, request_or_context, problem_instance):
         return True
 
+    def can_see_problems_limits(self, request):
+        context = self.make_context(request)
+        lvc = LimitsVisibilityConfig.objects.filter(contest=context.contest)
+        if lvc.exists() and lvc[0].visible == 'YES':
+            return True
+        elif lvc.exists() and lvc[0].visible == 'NO':
+            return False
+        else:
+            return self.default_can_see_problems_limits(request)
+
+    def default_can_see_problems_limits(self, request):
+        return False
+
     def can_submit(self, request, problem_instance, check_round_times=True):
         """Determines if the current user is allowed to submit a solution for
         the given problem.
@@ -641,6 +660,105 @@ def is_submissions_limit_exceeded(self, request, problem_instance, kind=None):
             request, problem_instance, kind
         )
 
+    def get_problems_limits(self, request):
+        """Returns a dictionary containing data about time and memory limits for a given ProblemInstance:
+            ProblemInstanceID -> {
+                'default':  (min_time, max_time, min_memory, max_memory),
+                'cpp':      (min_time, max_time, min_memory, max_memory),
+                'py':       (min_time, max_time, min_memory, max_memory)
+            }
+            Corresponding dictionary is None if no limits exist
+        """
+
+        instances = ProblemInstance.objects.filter(contest=request.contest).annotate(
+            # default limits
+            min_time=Min('test__time_limit', filter=Q(test__is_active=True)),
+            max_time=Max('test__time_limit', filter=Q(test__is_active=True)),
+            min_memory=Min('test__memory_limit', filter=Q(test__is_active=True)),
+            max_memory=Max('test__memory_limit', filter=Q(test__is_active=True)),
+
+            # cpp overridden limits
+            cpp_min_time=Min(
+                'test__languageoverridefortest__time_limit',
+                filter=Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+            cpp_max_time=Max(
+                'test__languageoverridefortest__time_limit',
+                filter=Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+            cpp_min_memory=Min(
+                'test__languageoverridefortest__memory_limit',
+                filter=Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+            cpp_max_memory=Max(
+                'test__languageoverridefortest__memory_limit',
+                filter=Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+
+            # python overridden limits
+            py_min_time=Min(
+                'test__languageoverridefortest__time_limit',
+                filter=Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+            py_max_time=Max(
+                'test__languageoverridefortest__time_limit',
+                filter=Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+            py_min_memory=Min(
+                'test__languageoverridefortest__memory_limit',
+                filter=Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+            py_max_memory=Max(
+                'test__languageoverridefortest__memory_limit',
+                filter=Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+
+            # non-overridden test limits in cpp
+            cpp_min_time_non_overridden=Min(
+                'test__time_limit',
+                filter=~Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+            cpp_max_time_non_overridden=Max(
+                'test__time_limit',
+                filter=~Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+            cpp_min_memory_non_overridden=Min(
+                'test__memory_limit',
+                filter=~Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+            cpp_max_memory_non_overridden=Max(
+                'test__memory_limit',
+                filter=~Q(test__languageoverridefortest__language='cpp') & Q(test__is_active=True)
+            ),
+
+            # non-overridden test limits in python
+            py_min_time_non_overridden=Min(
+                'test__time_limit',
+                filter=~Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+            py_max_time_non_overridden=Max(
+                'test__time_limit',
+                filter=~Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+            py_min_memory_non_overridden=Min(
+                'test__memory_limit',
+                filter=~Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+            py_max_memory_non_overridden=Max(
+                'test__memory_limit',
+                filter=~Q(test__languageoverridefortest__language='py') & Q(test__is_active=True)
+            ),
+        ).values(
+            'id',
+            'min_time', 'max_time', 'min_memory', 'max_memory',
+            'cpp_min_time', 'cpp_max_time', 'cpp_min_memory', 'cpp_max_memory',
+            'cpp_min_time_non_overridden', 'cpp_max_time_non_overridden', 'cpp_min_memory_non_overridden', 'cpp_max_memory_non_overridden',
+            'py_min_time', 'py_max_time', 'py_min_memory', 'py_max_memory',
+            'py_min_time_non_overridden', 'py_max_time_non_overridden', 'py_min_memory_non_overridden', 'py_max_memory_non_overridden'
+        )
+
+        return process_instances_to_limits(instances)
+
     def adjust_submission_form(self, request, form, problem_instance):
         # by default delegate to ProblemController
         problem_instance.problem.controller.adjust_submission_form(

oioioi/contests/migrations/0020_limitsvisibilityconfig.py

@@ -0,0 +1,27 @@
+# Generated by Django 4.2.20 on 2025-03-23 13:34
+
+from django.db import migrations, models
+import django.db.models.deletion
+import oioioi.base.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contests', '0019_submissionmessage'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='LimitsVisibilityConfig',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('visible', oioioi.base.fields.EnumField(default='NO', help_text="Determines whether participants can see problems' time and memory limits", max_length=64, verbose_name='limits visibility')),
+                ('contest', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='contests.contest')),
+            ],
+            options={
+                'verbose_name': 'limits visibility config',
+                'verbose_name_plural': 'limits visibility configs',
+            },
+        ),
+    ]

oioioi/contests/models.py

@@ -353,6 +353,27 @@ class Meta(object):
         verbose_name_plural = _("ranking visibility configs")
 
 
+limits_visibility_options = EnumRegistry()
+limits_visibility_options.register('YES', _("Visible"))
+limits_visibility_options.register('NO', _("Not visible"))
+
+
+class LimitsVisibilityConfig(models.Model):
+    contest = models.OneToOneField('contests.Contest', on_delete=models.CASCADE)
+    visible = EnumField(
+        limits_visibility_options,
+        default='NO',
+        verbose_name=_("limits visibility"),
+        help_text=_(
+            "Determines whether participants can see problems' time and memory limits"
+        ),
+    )
+
+    class Meta(object):
+        verbose_name = _("limits visibility config")
+        verbose_name_plural = _("limits visibility configs")
+
+
 registration_availability_options = EnumRegistry()
 registration_availability_options.register('YES', _("Open"))
 registration_availability_options.register('NO', _("Closed"))

oioioi/contests/static/common/contests.scss

@@ -45,3 +45,18 @@ table.table-striped > tbody > tr.problemlist-subheader {
     margin: 3rem;
     margin-bottom: 4rem;
 }
+
+.problem-name-column {
+    width: 100%;
+}
+
+.problem-limits-row {
+    background-color: transparent !important;
+    border-color: transparent !important;
+    white-space: nowrap;
+}
+
+.problem-limits-row td {
+    border: none;
+    white-space: nowrap;
+}

oioioi/contests/templates/contests/problems_list.html

@@ -14,7 +14,12 @@ <h1>{% trans "Problems" %}</h1>
             <thead>
                 <tr>
                     <th></th>
-                    <th>{% trans "Name" %}</th>
+                    <th class="problem-name-column">{% trans "Name" %}</th>
+                    {% if show_problems_limits %}
+                        <th>
+                            {% trans "Limits" %}
+                        </th>
+                    {% endif %}
                     {% if show_submissions_limit %}
                         <th class="text-right">
                         {% if user.is_authenticated %}
@@ -31,8 +36,7 @@ <h1>{% trans "Problems" %}</h1>
                 </tr>
             </thead>
             <tbody>
-                {% for pi, statement_visible, round_time, result, submissions_left, submissions_limit, can_submit in problem_instances %}
-
+                {% for pi, statement_visible, round_time, problem_limits, result, submissions_left, submissions_limit, can_submit in problem_instances %}
                     {% if show_rounds %}
                         {% ifchanged pi.round %}
                             <tr class="problemlist-subheader">
@@ -53,6 +57,23 @@ <h1>{% trans "Problems" %}</h1>
                                 {{ pi.problem.name }}
                             {% endif %}
                         </td>
+                        {% if show_problems_limits %}
+                            <td class="text-right">
+                                {% if problem_limits %}
+                                    <table>
+                                        {% for row in problem_limits %}
+                                            <tr class="problem-limits-row">
+                                                {% for entry in row %}
+                                                    <td>
+                                                        {{ entry }}
+                                                    </td>
+                                                {% endfor %}
+                                            </tr>
+                                        {% endfor %}
+                                    </table>
+                                {% endif %}
+                            </td>
+                        {% endif %}
                         {% if show_submissions_limit %}
                             <td class="text-right">
                                 {% if submissions_left == None %}

oioioi/contests/tests/__init__.py

@@ -69,6 +69,7 @@ def make_empty_contest_formset():
         ('problemstatementconfig', 0, 0, 0, 1),
         ('rankingvisibilityconfig', 0, 0, 0, 1),
         ('registrationavailabilityconfig', 0, 0, 0, 1),
+        ('limitsvisibilityconfig', 0, 0, 0, 1),
         ('balloonsdeliveryaccessdata', 1, 0, 0, 1),
         ('statistics_config', 1, 0, 0, 1),
         ('exclusivenessconfig_set', 0, 0, 0, 1000),