add teaching feature

problem/urls/admin.py

@@ -4,6 +4,7 @@ from ..views.admin import (
     ContestProblemAPI,
     ProblemAPI,
     ProblemFlowchartAIGen,
+    StuckProblemsAPI,
     TestCaseAPI,
     MakeContestProblemPublicAPIView,
     AddContestProblemAPI,
@@ -14,6 +15,7 @@ urlpatterns = [
     path("test_case", TestCaseAPI.as_view()),
     path("problem", ProblemAPI.as_view()),
     path("problem/visible", ProblemVisibleAPI.as_view()),
+    path("problem/stuck", StuckProblemsAPI.as_view()),
     path("problem/flowchart", ProblemFlowchartAIGen.as_view()),
     path("contest/problem", ContestProblemAPI.as_view()),
     path("contest_problem/make_public", MakeContestProblemPublicAPIView.as_view()),

problem/urls/oj.py

@@ -7,12 +7,14 @@ from ..views.oj import (
     ContestProblemAPI,
     PickOneAPI,
     ProblemAuthorAPI,
+    SimilarProblemAPI,
 )
 
 urlpatterns = [
     path("problem/tags", ProblemTagAPI.as_view()),
     path("problem", ProblemAPI.as_view()),
     path("problem/beat_count", ProblemSolvedPeopleCount.as_view()),
+    path("problem/similar", SimilarProblemAPI.as_view()),
     path("problem/author", ProblemAuthorAPI.as_view()),
     path("pickone", PickOneAPI.as_view()),
     path("contest/problem", ContestProblemAPI.as_view()),