精简 Problem 模型：移除 rule_type / total_score / io_mode

系统只用 ACM 模式且题目固定标准 IO，这三列已无实际用途：
- rule_type / total_score：OI 专用，删除后 judge/dispatcher 的 OI 分支全部塌缩为 ACM
- io_mode：判题改为固定发送 Standard IO 常量；languages.py 的 seccomp_rule
  保留 dict 形态但改用字面量 key，不改判题机 wire 契约
- prompt 字段保留（预留给未来 AI 分析）

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

judge/dispatcher.py

@@ -13,7 +13,7 @@ from account.models import User
 from conf.models import JudgeServer
 from contest.models import ACMContestRank
 from options.options import SysOptions
-from problem.models import Problem, ProblemRuleType
+from problem.models import Problem
 from problem.utils import parse_problem_template
 from submission.models import JudgeStatus, Submission, is_accepted
 from utils.cache import cache
@@ -114,22 +114,6 @@ class JudgeDispatcher(DispatcherBase):
         self.submission.statistic_info["time_cost"] = max([x["cpu_time"] for x in resp_data])
         self.submission.statistic_info["memory_cost"] = max([x["memory"] for x in resp_data])
 
-        # sum up the score in OI mode
-        if self.problem.rule_type == ProblemRuleType.OI:
-            score = 0
-            try:
-                for i in range(len(resp_data)):
-                    if resp_data[i]["result"] == JudgeStatus.ACCEPTED:
-                        resp_data[i]["score"] = self.problem.test_case_score[i]["score"]
-                        score += resp_data[i]["score"]
-                    else:
-                        resp_data[i]["score"] = 0
-            except IndexError:
-                logger.error(f"Index Error raised when summing up the score in problem {self.problem.id}")
-                self.submission.statistic_info["score"] = 0
-                return
-            self.submission.statistic_info["score"] = score
-
     def judge(self):
         language = self.submission.language
         sub_config = list(filter(lambda item: language == item["name"], SysOptions.languages))[0]
@@ -147,7 +131,7 @@ class JudgeDispatcher(DispatcherBase):
             "max_memory": 1024 * 1024 * self.problem.memory_limit,
             "test_case_id": self.problem.test_case_id,
             "output": False,
-            "io_mode": self.problem.io_mode,
+            "io_mode": {"io_mode": "Standard IO", "input": "input.txt", "output": "output.txt"},
         }
 
         with ChooseJudgeServer() as server:
@@ -188,14 +172,11 @@ class JudgeDispatcher(DispatcherBase):
             self.submission.info = resp
             self._compute_statistic_info(resp["data"])
             error_test_case = list(filter(lambda case: case["result"] != 0, resp["data"]))
-            # ACM模式下,多个测试点全部正确则AC，否则取第一个错误的测试点的状态
-            # OI模式下, 若多个测试点全部正确则AC， 若全部错误则取第一个错误测试点状态，否则为部分正确
+            # 多个测试点全部正确则AC，否则取第一个错误的测试点的状态
             if not error_test_case:
                 self.submission.result = JudgeStatus.ACCEPTED
-            elif self.problem.rule_type == ProblemRuleType.ACM or len(error_test_case) == len(resp["data"]):
-                self.submission.result = error_test_case[0]["result"]
             else:
-                self.submission.result = JudgeStatus.PARTIALLY_ACCEPTED
+                self.submission.result = error_test_case[0]["result"]
 
             if self.submission.result == JudgeStatus.ACCEPTED:
                 ast_rules = self.problem.ast_rules
@@ -252,7 +233,6 @@ class JudgeDispatcher(DispatcherBase):
             problem.save(update_fields=["accepted_number", "statistic_info"])
 
             profile = User.objects.select_for_update().get(id=self.submission.user_id).userprofile
-            if problem.rule_type == ProblemRuleType.ACM:
             acm_problems_status = profile.acm_problems_status.get("problems", {})
             if not is_accepted(acm_problems_status[problem_id]["status"]):
                 acm_problems_status[problem_id]["status"] = JudgeStatus.ACCEPTED if is_accepted(self.submission.result) else self.submission.result
@@ -261,19 +241,6 @@ class JudgeDispatcher(DispatcherBase):
             profile.acm_problems_status["problems"] = acm_problems_status
             profile.save(update_fields=["accepted_number", "acm_problems_status"])
 
-            else:
-                oi_problems_status = profile.oi_problems_status.get("problems", {})
-                score = self.submission.statistic_info["score"]
-                if not is_accepted(oi_problems_status[problem_id]["status"]):
-                    # minus last time score, add this tim score
-                    profile.add_score(this_time_score=score, last_time_score=oi_problems_status[problem_id]["score"])
-                    oi_problems_status[problem_id]["score"] = score
-                    oi_problems_status[problem_id]["status"] = JudgeStatus.ACCEPTED if is_accepted(self.submission.result) else self.submission.result
-                    if is_accepted(self.submission.result):
-                        profile.accepted_number += 1
-                profile.oi_problems_status["problems"] = oi_problems_status
-                profile.save(update_fields=["accepted_number", "oi_problems_status"])
-
     def update_problem_status(self):
         result = str(self.submission.result)
         problem_id = str(self.problem.id)
@@ -292,7 +259,6 @@ class JudgeDispatcher(DispatcherBase):
             user_profile = user.userprofile
             user_profile.submission_number = F("submission_number") + 1
             profile_status = JudgeStatus.ACCEPTED if is_accepted(self.submission.result) else self.submission.result
-            if problem.rule_type == ProblemRuleType.ACM:
             acm_problems_status = user_profile.acm_problems_status.get("problems", {})
             if problem_id not in acm_problems_status:
                 acm_problems_status[problem_id] = {"status": profile_status, "_id": self.problem._id}
@@ -305,24 +271,6 @@ class JudgeDispatcher(DispatcherBase):
             user_profile.acm_problems_status["problems"] = acm_problems_status
             user_profile.save(update_fields=["submission_number", "accepted_number", "acm_problems_status"])
 
-            else:
-                oi_problems_status = user_profile.oi_problems_status.get("problems", {})
-                score = self.submission.statistic_info["score"]
-                if problem_id not in oi_problems_status:
-                    user_profile.add_score(score)
-                    oi_problems_status[problem_id] = {"status": profile_status, "_id": self.problem._id, "score": score}
-                    if is_accepted(self.submission.result):
-                        user_profile.accepted_number += 1
-                elif not is_accepted(oi_problems_status[problem_id]["status"]):
-                    # minus last time score, add this time score
-                    user_profile.add_score(this_time_score=score, last_time_score=oi_problems_status[problem_id]["score"])
-                    oi_problems_status[problem_id]["score"] = score
-                    oi_problems_status[problem_id]["status"] = profile_status
-                    if is_accepted(self.submission.result):
-                        user_profile.accepted_number += 1
-                user_profile.oi_problems_status["problems"] = oi_problems_status
-                user_profile.save(update_fields=["submission_number", "accepted_number", "oi_problems_status"])
-
     def update_contest_problem_status(self):
         with transaction.atomic():
             user = User.objects.select_for_update().get(id=self.submission.user_id)

judge/languages.py

@@ -1,5 +1,3 @@
-from problem.models import ProblemIOMode
-
 default_env = ["LANG=en_US.UTF-8", "LANGUAGE=en_US:en", "LC_ALL=en_US.UTF-8"]
 
 _c_lang_config = {
@@ -27,7 +25,7 @@ int main() {
         "max_memory": 256 * 1024 * 1024,
         "compile_command": "/usr/bin/gcc -DONLINE_JUDGE -O2 -w -fmax-errors=3 -std=c17 {src_path} -lm -o {exe_path}",
     },
-    "run": {"command": "{exe_path}", "seccomp_rule": {ProblemIOMode.STANDARD: "c_cpp", ProblemIOMode.FILE: "c_cpp_file_io"}, "env": default_env},
+    "run": {"command": "{exe_path}", "seccomp_rule": {"Standard IO": "c_cpp", "File IO": "c_cpp_file_io"}, "env": default_env},
 }
 
 
@@ -56,7 +54,7 @@ int main() {
         "max_memory": 1024 * 1024 * 1024,
         "compile_command": "/usr/bin/g++ -DONLINE_JUDGE -O2 -w -fmax-errors=3 -std=c++20 {src_path} -lm -o {exe_path}",
     },
-    "run": {"command": "{exe_path}", "seccomp_rule": {ProblemIOMode.STANDARD: "c_cpp", ProblemIOMode.FILE: "c_cpp_file_io"}, "env": default_env},
+    "run": {"command": "{exe_path}", "seccomp_rule": {"Standard IO": "c_cpp", "File IO": "c_cpp_file_io"}, "env": default_env},
 }
 
 

judge/sql_dispatcher.py

@@ -88,7 +88,7 @@ class SQLJudgeDispatcher(JudgeDispatcher):
             raise SQLProblemConfigError("测试点不是 SQL 类型，请重新上传 SQL 测试点压缩包")
 
         init_scripts = []
-        # 按 "1","2",… 自然序遍历，保证与 test_case_score 的下标对应（OI 计分依赖顺序）
+        # 按 "1","2",… 自然序遍历，保证测试点顺序稳定
         for key in sorted(info["test_cases"].keys(), key=natural_sort_key):
             input_name = info["test_cases"][key]["input_name"]
             try:

problem/migrations/0001_initial.py

@@ -1,7 +1,6 @@
 # Generated by Django 5.2.3 on 2025-06-14 08:51
 
 import django.db.models.deletion
-import problem.models
 import utils.models
 from django.conf import settings
 from django.db import migrations, models
@@ -47,7 +46,7 @@ class Migration(migrations.Migration):
                 ('last_update_time', models.DateTimeField(auto_now=True, null=True)),
                 ('time_limit', models.IntegerField()),
                 ('memory_limit', models.IntegerField()),
-                ('io_mode', models.JSONField(default=problem.models._default_io_mode)),
+                ('io_mode', models.JSONField(default=dict)),
                 ('spj', models.BooleanField(default=False)),
                 ('spj_language', models.TextField(null=True)),
                 ('spj_code', models.TextField(null=True)),

problem/migrations/0013_remove_problem_io_mode_remove_problem_rule_type_and_more.py

@@ -0,0 +1,25 @@
+# Generated by Django 6.0.4 on 2026-07-04 17:27
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('problem', '0012_problem_sql_display'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='problem',
+            name='io_mode',
+        ),
+        migrations.RemoveField(
+            model_name='problem',
+            name='rule_type',
+        ),
+        migrations.RemoveField(
+            model_name='problem',
+            name='total_score',
+        ),
+    ]

problem/models.py

@@ -13,24 +13,6 @@ class ProblemTag(models.Model):
         db_table = "problem_tag"
 
 
-class ProblemRuleType(models.TextChoices):
-    ACM = "ACM", "ACM"
-    OI = "OI", "OI"
-
-
-class ProblemIOMode(models.TextChoices):
-    STANDARD = "Standard IO", "Standard IO"
-    FILE = "File IO", "File IO"
-
-
-def _default_io_mode():
-    return {
-        "io_mode": ProblemIOMode.STANDARD,
-        "input": "input.txt",
-        "output": "output.txt",
-    }
-
-
 class Problem(models.Model):
     # display ID
     _id = models.TextField(db_index=True)
@@ -58,18 +40,14 @@ class Problem(models.Model):
     time_limit = models.IntegerField()
     # MB
     memory_limit = models.IntegerField()
-    # io mode
-    io_mode = models.JSONField(default=_default_io_mode)
-    rule_type = models.TextField(choices=ProblemRuleType.choices)
     visible = models.BooleanField(default=True, db_default=True)
     difficulty = models.TextField(choices=Difficulty.choices)
     tags = models.ManyToManyField(ProblemTag)
     source = models.TextField(null=True)
+    # 预留：题目考察知识点，供未来 AI 分析使用（当前未接线）
     prompt = models.TextField(null=True)
     # [{language: "python", code: "..."}]
     answers = models.JSONField(null=True)
-    # for OI mode
-    total_score = models.IntegerField(default=0, db_default=0)
     submission_number = models.BigIntegerField(default=0, db_default=0)
     accepted_number = models.BigIntegerField(default=0, db_default=0)
     # {JudgeStatus.ACCEPTED: 3, JudgeStatus.WRONG_ANSWER: 11}, the number means count

problem/serializers.py

@@ -1,5 +1,3 @@
-import re
-
 from django import forms
 
 from utils.api import UsernameSerializer, serializers
@@ -9,7 +7,7 @@ from utils.serializers import (
     LanguageNameMultiChoiceField,
 )
 
-from .models import Problem, ProblemIOMode, ProblemRuleType, ProblemTag
+from .models import Problem, ProblemTag
 from .utils import parse_problem_template
 
 
@@ -48,20 +46,6 @@ class SQLTestCasePreviewSerializer(serializers.Serializer):
     mode = serializers.ChoiceField(choices=["query", "modify"])
 
 
-class ProblemIOModeSerializer(serializers.Serializer):
-    io_mode = serializers.ChoiceField(choices=ProblemIOMode.choices)
-    input = serializers.CharField()
-    output = serializers.CharField()
-
-    def validate(self, attrs):
-        if attrs["input"] == attrs["output"]:
-            raise serializers.ValidationError("Invalid io mode")
-        for item in (attrs["input"], attrs["output"]):
-            if not re.match("^[a-zA-Z0-9.]+$", item):
-                raise serializers.ValidationError("Invalid io file name format")
-        return attrs
-
-
 class CreateOrEditProblemSerializer(serializers.Serializer):
     _id = serializers.CharField(max_length=32, allow_blank=True, allow_null=True)
     title = serializers.CharField(max_length=1024)
@@ -75,8 +59,6 @@ class CreateOrEditProblemSerializer(serializers.Serializer):
     memory_limit = serializers.IntegerField(min_value=1, max_value=1024)
     languages = LanguageNameMultiChoiceField()
     template = serializers.DictField(child=serializers.CharField(min_length=1))
-    rule_type = serializers.ChoiceField(choices=ProblemRuleType.choices)
-    io_mode = ProblemIOModeSerializer()
     visible = serializers.BooleanField()
     difficulty = serializers.ChoiceField(choices=Difficulty.choices)
     tags = serializers.ListField(child=serializers.CharField(max_length=32), allow_empty=False)

problem/views/admin.py

@@ -19,7 +19,7 @@ from utils.api import APIError, APIView, CSRFExemptAPIView, validate_serializer
 from utils.openai import get_ai_client
 from utils.shortcuts import natural_sort_key, rand_str
 
-from ..models import Problem, ProblemRuleType, ProblemTag
+from ..models import Problem, ProblemTag
 from ..serializers import (
     AddContestProblemSerializer,
     ContestProblemMakePublicSerializer,
@@ -195,14 +195,6 @@ class TestCaseAPI(CSRFExemptAPIView, TestCaseZipProcessor):
 class ProblemBase(APIView):
     def common_checks(self, request):
         data = request.data
-        if data["rule_type"] == ProblemRuleType.OI:
-            total_score = 0
-            for item in data["test_case_score"]:
-                if item["score"] <= 0:
-                    return "Invalid score"
-                else:
-                    total_score += item["score"]
-            data["total_score"] = total_score
         data["languages"] = list(data["languages"])
 
         # SQL 题校验：.sql 测试点与 .in/.out 沙箱判题互斥，SQL 必须是唯一语言

submission/serializers.py

@@ -57,7 +57,7 @@ class SubmissionModelSerializer(serializers.ModelSerializer):
         fields = "__all__"
 
 
-# 不显示submission info的serializer, 用于ACM rule_type
+# 不显示submission info的serializer, 用于非管理员查看他人提交
 class SubmissionSafeModelSerializer(serializers.ModelSerializer):
     problem = serializers.SlugRelatedField(read_only=True, slug_field="_id")
 

submission/views/oj.py

@@ -11,7 +11,7 @@ from judge.tasks import judge_task
 from options.options import SysOptions
 
 # from judge.dispatcher import JudgeDispatcher
-from problem.models import Problem, ProblemRuleType
+from problem.models import Problem
 from utils.api import APIView, AsyncAPIView, validate_serializer
 from utils.cache import cache
 from utils.captcha import Captcha
@@ -116,10 +116,7 @@ class SubmissionAPI(AsyncAPIView):
         if not submission.check_user_permission(request.user):
             return self.error("No permission for this submission")
 
-        if (
-            submission.problem.rule_type == ProblemRuleType.OI
-            or request.user.is_admin_role()
-        ):
+        if request.user.is_admin_role():
             submission_data = await self.async_serialize_data(SubmissionModelSerializer, submission)
         else:
             submission_data = await self.async_serialize_data(SubmissionSafeModelSerializer, submission)

utils/migrate_data.py

@@ -12,7 +12,7 @@ os.environ.setdefault("DJANGO_SETTINGS_MODULE", "oj.settings")
 django.setup()
 from django.conf import settings
 from account.models import User, UserProfile, AdminType, ProblemPermission
-from problem.models import Problem, ProblemTag, ProblemRuleType
+from problem.models import Problem, ProblemTag
 from utils.constants import Difficulty
 
 admin_type_map = {0: AdminType.REGULAR_USER, 1: AdminType.STUDENT_ADMIN, 2: AdminType.SUPER_ADMIN}
@@ -154,7 +154,6 @@ def import_problems():
                 print("%s test_case files don't exist, omitted" % data["title"])
                 continue
             data["test_case_score"] = test_case_score
-            data["rule_type"] = ProblemRuleType.ACM
             data["template"] = {}
             data.pop("total_submit_number")
             data.pop("total_accepted_number")