添加问题可见/不可见的API

problem/urls/admin.py

@@ -2,12 +2,13 @@ from django.urls import path
 
 from ..views.admin import (ContestProblemAPI, ProblemAPI, TestCaseAPI, MakeContestProblemPublicAPIView,
                            CompileSPJAPI, AddContestProblemAPI, ExportProblemAPI, ImportProblemAPI,
-                           FPSProblemImport)
+                           FPSProblemImport, ProblemVisibleAPI)
 
 urlpatterns = [
     path("test_case", TestCaseAPI.as_view()),
     path("compile_spj", CompileSPJAPI.as_view()),
     path("problem", ProblemAPI.as_view()),
+    path("problem/visible", ProblemVisibleAPI.as_view()),
     path("contest/problem", ContestProblemAPI.as_view()),
     path("contest_problem/make_public", MakeContestProblemPublicAPIView.as_view()),
     path("contest/add_problem_from_public", AddContestProblemAPI.as_view()),