diff --git a/judge/migrations/0137_auto_20221116_2201.py b/judge/migrations/0137_auto_20221116_2201.py
index b615e83..8439d6d 100644
--- a/judge/migrations/0137_auto_20221116_2201.py
+++ b/judge/migrations/0137_auto_20221116_2201.py
@@ -7,39 +7,78 @@ import django.db.models.deletion
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('judge', '0136_alter_profile_timezone'),
+        ("judge", "0136_alter_profile_timezone"),
     ]
 
     operations = [
         migrations.CreateModel(
-            name='PageVote',
+            name="PageVote",
             fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('page', models.CharField(db_index=True, max_length=30, verbose_name='associated page')),
-                ('score', models.IntegerField(default=0, verbose_name='votes')),
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "page",
+                    models.CharField(
+                        db_index=True, max_length=30, verbose_name="associated page"
+                    ),
+                ),
+                ("score", models.IntegerField(default=0, verbose_name="votes")),
             ],
             options={
-                'verbose_name': 'pagevote',
-                'verbose_name_plural': 'pagevotes',
+                "verbose_name": "pagevote",
+                "verbose_name_plural": "pagevotes",
             },
         ),
         migrations.AlterField(
-            model_name='problemtranslation',
-            name='language',
-            field=models.CharField(choices=[('vi', 'Vietnamese'), ('en', 'English')], max_length=7, verbose_name='language'),
+            model_name="problemtranslation",
+            name="language",
+            field=models.CharField(
+                choices=[("vi", "Vietnamese"), ("en", "English")],
+                max_length=7,
+                verbose_name="language",
+            ),
         ),
         migrations.CreateModel(
-            name='PageVoteVoter',
+            name="PageVoteVoter",
             fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('score', models.IntegerField()),
-                ('pagevote', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='votes', to='judge.pagevote')),
-                ('voter', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='voted_page', to='judge.profile')),
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("score", models.IntegerField()),
+                (
+                    "pagevote",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="votes",
+                        to="judge.pagevote",
+                    ),
+                ),
+                (
+                    "voter",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="voted_page",
+                        to="judge.profile",
+                    ),
+                ),
             ],
             options={
-                'verbose_name': 'pagevote vote',
-                'verbose_name_plural': 'pagevote votes',
-                'unique_together': {('voter', 'pagevote')},
+                "verbose_name": "pagevote vote",
+                "verbose_name_plural": "pagevote votes",
+                "unique_together": {("voter", "pagevote")},
             },
         ),
     ]
diff --git a/judge/models/pagevote.py b/judge/models/pagevote.py
index ca13be7..4923420 100644
--- a/judge/models/pagevote.py
+++ b/judge/models/pagevote.py
@@ -18,7 +18,7 @@ class PageVote(models.Model):
     class Meta:
         verbose_name = _("pagevote")
         verbose_name_plural = _("pagevotes")
-    
+
     def vote_score(self, user):
         page_vote = PageVoteVoter.objects.filter(pagevote=self, voter=user)
         if page_vote.exists():
@@ -29,6 +29,7 @@ class PageVote(models.Model):
     def __str__(self):
         return f"pagevote for {self.page}"
 
+
 class PageVoteVoter(models.Model):
     voter = models.ForeignKey(Profile, related_name="voted_page", on_delete=CASCADE)
     pagevote = models.ForeignKey(PageVote, related_name="votes", on_delete=CASCADE)
@@ -37,4 +38,4 @@ class PageVoteVoter(models.Model):
     class Meta:
         unique_together = ["voter", "pagevote"]
         verbose_name = _("pagevote vote")
-        verbose_name_plural = _("pagevote votes")
\ No newline at end of file
+        verbose_name_plural = _("pagevote votes")
diff --git a/judge/views/blog.py b/judge/views/blog.py
index 4936bf9..8bdb261 100644
--- a/judge/views/blog.py
+++ b/judge/views/blog.py
@@ -7,7 +7,7 @@ from django.utils.translation import ugettext as _
 from django.views.generic import ListView
 
 from judge.comments import CommentedDetailView
-from judge.views.pagevote import PageVoteDetailView
+from judge.views.pagevote import PageVoteDetailView, PageVoteListView
 from judge.models import (
     BlogPost,
     Comment,
@@ -93,7 +93,7 @@ class FeedView(ListView):
         return context
 
 
-class PostList(FeedView):
+class PostList(FeedView, PageVoteListView):
     model = BlogPost
     paginate_by = 10
     context_object_name = "posts"
@@ -130,6 +130,9 @@ class PostList(FeedView):
 
         return context
 
+    def get_comment_page(self, post):
+        return "b:%s" % post.id
+
 
 class TicketFeed(FeedView):
     model = Ticket
diff --git a/judge/views/contests.py b/judge/views/contests.py
index c9d2c0b..3fc64e6 100644
--- a/judge/views/contests.py
+++ b/judge/views/contests.py
@@ -82,6 +82,8 @@ from judge.utils.views import (
     generic_message,
 )
 from judge.widgets import HeavyPreviewPageDownWidget
+from judge.views.pagevote import PageVoteDetailView
+
 
 __all__ = [
     "ContestList",
@@ -380,7 +382,7 @@ class ContestMixin(object):
             )
 
 
-class ContestDetail(ContestMixin, TitleMixin, CommentedDetailView):
+class ContestDetail(ContestMixin, TitleMixin, CommentedDetailView, PageVoteDetailView):
     template_name = "contest/contest.html"
 
     def get_comment_page(self):
diff --git a/judge/views/pagevote.py b/judge/views/pagevote.py
index 2764514..5816b03 100644
--- a/judge/views/pagevote.py
+++ b/judge/views/pagevote.py
@@ -13,7 +13,7 @@ from django.views.generic.base import TemplateResponseMixin
 from django.views.generic.detail import SingleObjectMixin
 
 from judge.dblock import LockModel
-from django.views.generic import View
+from django.views.generic import View, ListView
 
 
 __all__ = [
@@ -21,6 +21,7 @@ __all__ = [
     "downvote_page",
 ]
 
+
 @login_required
 def vote_page(request, delta):
     if abs(delta) != 1:
@@ -75,7 +76,9 @@ def vote_page(request, delta):
                         _("You already voted."), content_type="text/plain"
                     )
                 vote.delete()
-            PageVote.objects.filter(id=pagevote_id).update(score=F("score") - vote.score)
+            PageVote.objects.filter(id=pagevote_id).update(
+                score=F("score") - vote.score
+            )
         else:
             PageVote.objects.filter(id=pagevote_id).update(score=F("score") + delta)
         break
@@ -89,6 +92,7 @@ def upvote_page(request):
 def downvote_page(request):
     return vote_page(request, -1)
 
+
 class PageVoteDetailView(TemplateResponseMixin, SingleObjectMixin, View):
     pagevote_page = None
 
@@ -108,13 +112,21 @@ class PageVoteDetailView(TemplateResponseMixin, SingleObjectMixin, View):
     def get_context_data(self, **kwargs):
         context = super(PageVoteDetailView, self).get_context_data(**kwargs)
         queryset = PageVote.objects.filter(page=self.get_comment_page())
-        if (queryset.exists() == False):
-            pagevote = PageVote(
-                page=self.get_comment_page(), score=0
-            )
+        if queryset.exists() == False:
+            pagevote = PageVote(page=self.get_comment_page(), score=0)
             pagevote.save()
         context["pagevote"] = queryset.first()
         return context
 
-    
 
+class PageVoteListView(ListView):
+    pagevote_page = None
+
+    def get_context_data(self, **kwargs):
+        context = super(PageVoteListView, self).get_context_data(**kwargs)
+        for item in context["object_list"]:
+            pagevote, _ = PageVote.objects.get_or_create(
+                page=self.get_comment_page(item)
+            )
+            setattr(item, "pagevote", pagevote)
+        return context
diff --git a/judge/views/problem.py b/judge/views/problem.py
index 1cf6513..ee5c19c 100644
--- a/judge/views/problem.py
+++ b/judge/views/problem.py
@@ -86,6 +86,7 @@ from judge.utils.views import (
     generic_message,
 )
 from judge.ml.collab_filter import CollabFilter
+from judge.views.pagevote import PageVoteDetailView, PageVoteListView
 
 
 def get_contest_problem(problem, profile):
@@ -172,7 +173,11 @@ class SolvedProblemMixin(object):
 
 
 class ProblemSolution(
-    SolvedProblemMixin, ProblemMixin, TitleMixin, CommentedDetailView
+    SolvedProblemMixin,
+    ProblemMixin,
+    TitleMixin,
+    CommentedDetailView,
+    PageVoteDetailView,
 ):
     context_object_name = "problem"
     template_name = "problem/editorial.html"
@@ -237,7 +242,9 @@ class ProblemRaw(
             )
 
 
-class ProblemDetail(ProblemMixin, SolvedProblemMixin, CommentedDetailView):
+class ProblemDetail(
+    ProblemMixin, SolvedProblemMixin, CommentedDetailView, PageVoteDetailView
+):
     context_object_name = "problem"
     template_name = "problem/problem.html"
 
@@ -806,7 +813,7 @@ class ProblemList(QueryStringSortMixin, TitleMixin, SolvedProblemMixin, ListView
         return HttpResponseRedirect(request.get_full_path())
 
 
-class ProblemFeed(ProblemList):
+class ProblemFeed(ProblemList, PageVoteListView):
     model = Problem
     context_object_name = "problems"
     template_name = "problem/feed.html"
@@ -832,6 +839,9 @@ class ProblemFeed(ProblemList):
             **kwargs
         )
 
+    def get_comment_page(self, problem):
+        return "p:%s" % problem.code
+
     # arr = [[], [], ..]
     def merge_recommendation(self, arr):
         seed = datetime.now().strftime("%d%m%Y")
diff --git a/locale/vi/LC_MESSAGES/django.po b/locale/vi/LC_MESSAGES/django.po
index 8263f6a..2d04721 100644
--- a/locale/vi/LC_MESSAGES/django.po
+++ b/locale/vi/LC_MESSAGES/django.po
@@ -2,7 +2,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: lqdoj2\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-11-10 07:59+0700\n"
+"POT-Creation-Date: 2022-11-17 07:40+0700\n"
 "PO-Revision-Date: 2021-07-20 03:44\n"
 "Last-Translator: Icyene\n"
 "Language-Team: Vietnamese\n"
@@ -41,19 +41,19 @@ msgstr "xem lần cuối"
 msgid "Chat Box"
 msgstr "Chat Box"
 
-#: dmoj/settings.py:363
+#: dmoj/settings.py:365
 msgid "Vietnamese"
 msgstr "Tiếng Việt"
 
-#: dmoj/settings.py:364
+#: dmoj/settings.py:366
 msgid "English"
 msgstr ""
 
-#: dmoj/urls.py:131
+#: dmoj/urls.py:132
 msgid "Login"
 msgstr "Đăng nhập"
 
-#: dmoj/urls.py:208 templates/base.html:201
+#: dmoj/urls.py:209 templates/base.html:207
 #: templates/organization/org-left-sidebar.html:2
 msgid "Home"
 msgstr "Trang chủ"
@@ -87,7 +87,7 @@ msgid "Included contests"
 msgstr ""
 
 #: judge/admin/contest.py:74 judge/admin/volunteer.py:54
-#: templates/contest/clarification.html:42 templates/contest/contest.html:83
+#: templates/contest/clarification.html:42 templates/contest/contest.html:85
 #: templates/contest/moss.html:43 templates/internal/base.html:29
 #: templates/internal/base.html:37 templates/problem/list.html:15
 #: templates/problem/list.html:30 templates/problem/list.html:146
@@ -164,7 +164,7 @@ msgstr "Tính toán lại kết quả"
 msgid "username"
 msgstr "tên đăng nhập"
 
-#: judge/admin/contest.py:485 templates/base.html:306
+#: judge/admin/contest.py:485 templates/base.html:315
 msgid "virtual"
 msgstr "ảo"
 
@@ -214,7 +214,7 @@ msgid "Taxonomy"
 msgstr ""
 
 #: judge/admin/problem.py:216 judge/admin/problem.py:434
-#: templates/contest/contest.html:84 templates/problem/data.html:475
+#: templates/contest/contest.html:86 templates/problem/data.html:475
 #: templates/problem/list.html:20 templates/problem/list.html:44
 #: templates/user/base-users-table.html:10 templates/user/user-about.html:36
 #: templates/user/user-about.html:52 templates/user/user-problems.html:58
@@ -226,7 +226,7 @@ msgid "Limits"
 msgstr "Giới hạn"
 
 #: judge/admin/problem.py:218 judge/admin/submission.py:353
-#: templates/base.html:237 templates/stats/tab.html:4
+#: templates/base.html:243 templates/stats/tab.html:4
 #: templates/submission/list.html:342
 msgid "Language"
 msgstr "Ngôn ngữ"
@@ -235,7 +235,7 @@ msgstr "Ngôn ngữ"
 msgid "History"
 msgstr "Lịch sử"
 
-#: judge/admin/problem.py:272 templates/problem/list-base.html:106
+#: judge/admin/problem.py:272 templates/problem/list-base.html:108
 msgid "Authors"
 msgstr "Các tác giả"
 
@@ -535,7 +535,7 @@ msgstr "Mã kỳ thi phải có dạng ^[a-z0-9]+$"
 msgid "Contest with key already exists."
 msgstr "Mã kỳ thi đã tồn tại."
 
-#: judge/jinja2/datetime.py:26 templates/blog/blog.html:27
+#: judge/jinja2/datetime.py:26 templates/blog/blog.html:29
 #: templates/blog/dashboard.html:21
 msgid "N j, Y, g:i a"
 msgstr "g:i a j b, Y"
@@ -579,10 +579,12 @@ msgid "commenter"
 msgstr "người bình luận"
 
 #: judge/models/comment.py:49 judge/models/comment.py:223
+#: judge/models/pagevote.py:13
 msgid "associated page"
 msgstr "trang tương ứng"
 
-#: judge/models/comment.py:53 judge/models/problem.py:686
+#: judge/models/comment.py:53 judge/models/pagevote.py:16
+#: judge/models/problem.py:686
 msgid "votes"
 msgstr "bình chọn"
 
@@ -1266,6 +1268,30 @@ msgstr "thời gian gửi"
 msgid "messages in the thread"
 msgstr "tin nhắn trong chuỗi"
 
+#: judge/models/pagevote.py:19
+#, fuzzy
+#| msgid "votes"
+msgid "pagevote"
+msgstr "bình chọn"
+
+#: judge/models/pagevote.py:20
+#, fuzzy
+#| msgid "votes"
+msgid "pagevotes"
+msgstr "bình chọn"
+
+#: judge/models/pagevote.py:40
+#, fuzzy
+#| msgid "volunteer vote"
+msgid "pagevote vote"
+msgstr "vote từ TNV"
+
+#: judge/models/pagevote.py:41
+#, fuzzy
+#| msgid "volunteer votes"
+msgid "pagevote votes"
+msgstr "vote từ TNV"
+
 #: judge/models/problem.py:41
 msgid "problem category ID"
 msgstr "mã của nhóm bài"
@@ -2469,28 +2495,28 @@ msgstr "Giới thiệu"
 msgid "Custom Checker Sample"
 msgstr "Hướng dẫn viết trình chấm"
 
-#: judge/views/blog.py:115
+#: judge/views/blog.py:116
 #, python-format
 msgid "Page %d of Posts"
 msgstr "Trang %d"
 
-#: judge/views/blog.py:170
+#: judge/views/blog.py:174
 msgid "Ticket feed"
 msgstr "Báo cáo"
 
-#: judge/views/blog.py:188
+#: judge/views/blog.py:192
 msgid "Comment feed"
 msgstr "Bình luận"
 
-#: judge/views/comment.py:40
+#: judge/views/comment.py:40 judge/views/pagevote.py:29
 msgid "Messing around, are we?"
 msgstr "Messing around, are we?"
 
-#: judge/views/comment.py:56
+#: judge/views/comment.py:56 judge/views/pagevote.py:45
 msgid "You must solve at least one problem before you can vote."
 msgstr "Bạn phải giải ít nhất 1 bài trước khi được vote."
 
-#: judge/views/comment.py:87
+#: judge/views/comment.py:87 judge/views/pagevote.py:76
 msgid "You already voted."
 msgstr "Bạn đã vote."
 
@@ -2503,137 +2529,137 @@ msgstr "Chỉnh sửa từ web"
 msgid "Editing comment"
 msgstr "Chỉnh sửa bình luận"
 
-#: judge/views/contests.py:116 judge/views/contests.py:364
-#: judge/views/contests.py:369 judge/views/contests.py:610
+#: judge/views/contests.py:118 judge/views/contests.py:366
+#: judge/views/contests.py:371 judge/views/contests.py:612
 msgid "No such contest"
 msgstr "Không có contest nào như vậy"
 
-#: judge/views/contests.py:117 judge/views/contests.py:365
+#: judge/views/contests.py:119 judge/views/contests.py:367
 #, python-format
 msgid "Could not find a contest with the key \"%s\"."
 msgstr "Không tìm thấy kỳ thi với mã \"%s\"."
 
-#: judge/views/contests.py:136 judge/views/stats.py:178
+#: judge/views/contests.py:138 judge/views/stats.py:178
 #: templates/organization/org-left-sidebar.html:5 templates/stats/site.html:21
 msgid "Contests"
 msgstr "Kỳ thi"
 
-#: judge/views/contests.py:369
+#: judge/views/contests.py:371
 msgid "Could not find such contest."
 msgstr "Không tìm thấy kỳ thi nào như vậy."
 
-#: judge/views/contests.py:377
+#: judge/views/contests.py:379
 #, python-format
 msgid "Access to contest \"%s\" denied"
 msgstr "Truy cập tới kỳ thi \"%s\" bị từ chối"
 
-#: judge/views/contests.py:415
+#: judge/views/contests.py:417
 msgid "Clone Contest"
 msgstr "Nhân bản kỳ thi"
 
-#: judge/views/contests.py:484
+#: judge/views/contests.py:486
 msgid "Contest not ongoing"
 msgstr "Kỳ thi đang không diễn ra"
 
-#: judge/views/contests.py:485
+#: judge/views/contests.py:487
 #, python-format
 msgid "\"%s\" is not currently ongoing."
 msgstr "\"%s\" kỳ thi đang không diễn ra."
 
-#: judge/views/contests.py:492
+#: judge/views/contests.py:494
 msgid "Already in contest"
 msgstr "Đã ở trong kỳ thi"
 
-#: judge/views/contests.py:493
+#: judge/views/contests.py:495
 #, python-format
 msgid "You are already in a contest: \"%s\"."
 msgstr "Bạn đã ở trong kỳ thi: \"%s\"."
 
-#: judge/views/contests.py:503
+#: judge/views/contests.py:505
 msgid "Banned from joining"
 msgstr "Bị cấm tham gia"
 
-#: judge/views/contests.py:505
+#: judge/views/contests.py:507
 msgid ""
 "You have been declared persona non grata for this contest. You are "
 "permanently barred from joining this contest."
 msgstr "Bạn không được phép tham gia kỳ thi này."
 
-#: judge/views/contests.py:594
+#: judge/views/contests.py:596
 #, python-format
 msgid "Enter access code for \"%s\""
 msgstr "Nhập mật khẩu truy cập cho \"%s\""
 
-#: judge/views/contests.py:611
+#: judge/views/contests.py:613
 #, python-format
 msgid "You are not in contest \"%s\"."
 msgstr "Bạn không ở trong kỳ thi \"%s\"."
 
-#: judge/views/contests.py:634
+#: judge/views/contests.py:636
 msgid "ContestCalendar requires integer year and month"
 msgstr "Lịch thi yêu cầu giá trị cho năm và tháng là số nguyên"
 
-#: judge/views/contests.py:692
+#: judge/views/contests.py:694
 #, python-format
 msgid "Contests in %(month)s"
 msgstr "Các kỳ thi trong %(month)s"
 
-#: judge/views/contests.py:693
+#: judge/views/contests.py:695
 msgid "F Y"
 msgstr "F Y"
 
-#: judge/views/contests.py:753
+#: judge/views/contests.py:755
 #, python-format
 msgid "%s Statistics"
 msgstr "%s Thống kê"
 
-#: judge/views/contests.py:1010
+#: judge/views/contests.py:1012
 #, python-format
 msgid "%s Rankings"
 msgstr "%s Bảng điểm"
 
-#: judge/views/contests.py:1021
+#: judge/views/contests.py:1023
 msgid "???"
 msgstr "???"
 
-#: judge/views/contests.py:1037
+#: judge/views/contests.py:1039
 #, python-format
 msgid "Your participation in %s"
 msgstr "Lần tham gia trong %s"
 
-#: judge/views/contests.py:1038
+#: judge/views/contests.py:1040
 #, python-format
 msgid "%s's participation in %s"
 msgstr "Lần tham gia của %s trong %s"
 
-#: judge/views/contests.py:1052
+#: judge/views/contests.py:1054
 msgid "Live"
 msgstr "Trực tiếp"
 
-#: judge/views/contests.py:1071 templates/contest/contest-tabs.html:13
+#: judge/views/contests.py:1073 templates/contest/contest-tabs.html:13
 msgid "Participation"
 msgstr "Lần tham gia"
 
-#: judge/views/contests.py:1120
+#: judge/views/contests.py:1122
 #, python-format
 msgid "%s MOSS Results"
 msgstr "%s Kết quả MOSS"
 
-#: judge/views/contests.py:1156
+#: judge/views/contests.py:1158
 #, python-format
 msgid "Running MOSS for %s..."
 msgstr "Đang chạy MOSS cho %s..."
 
-#: judge/views/contests.py:1179
+#: judge/views/contests.py:1181
 #, python-format
 msgid "Contest tag: %s"
 msgstr "Nhãn kỳ thi: %s"
 
-#: judge/views/contests.py:1194 judge/views/ticket.py:72
+#: judge/views/contests.py:1196 judge/views/ticket.py:72
 msgid "Issue description"
 msgstr "Mô tả vấn đề"
 
-#: judge/views/contests.py:1241
+#: judge/views/contests.py:1243
 #, python-format
 msgid "New clarification for %s"
 msgstr "Thông báo mới cho %s"
@@ -2706,7 +2732,7 @@ msgstr "Bạn không được phép chỉnh sửa tổ chức này."
 
 #: judge/views/organization.py:243 judge/views/register.py:49
 #: judge/views/stats.py:184 templates/contest/list.html:91
-#: templates/problem/list-base.html:104 templates/stats/site.html:33
+#: templates/problem/list-base.html:106 templates/stats/site.html:33
 #: templates/user/user-left-sidebar.html:4 templates/user/user-list-tabs.html:6
 msgid "Groups"
 msgstr "Nhóm"
@@ -2860,60 +2886,60 @@ msgstr "Chỉnh sửa %s"
 msgid "Pending blogs in %s"
 msgstr "Bài đang đợi duyệt trong %s"
 
-#: judge/views/problem.py:121
+#: judge/views/problem.py:122
 msgid "No such problem"
 msgstr "Không có bài nào như vậy"
 
-#: judge/views/problem.py:122
+#: judge/views/problem.py:123
 #, python-format
 msgid "Could not find a problem with the code \"%s\"."
 msgstr "Không tìm thấy bài tập với mã bài \"%s\"."
 
-#: judge/views/problem.py:181
+#: judge/views/problem.py:186
 #, python-brace-format
 msgid "Editorial for {0}"
 msgstr "Hướng dẫn cho {0}"
 
-#: judge/views/problem.py:185
+#: judge/views/problem.py:190
 #, python-brace-format
 msgid "Editorial for <a href=\"{1}\">{0}</a>"
 msgstr "Hướng dẫn cho <a href=\"{1}\">{0}</a>"
 
-#: judge/views/problem.py:434 templates/contest/contest.html:79
+#: judge/views/problem.py:441 templates/contest/contest.html:81
 #: templates/organization/org-left-sidebar.html:4
 #: templates/user/user-about.html:28 templates/user/user-tabs.html:5
 #: templates/user/users-table.html:19
 msgid "Problems"
 msgstr "Bài tập"
 
-#: judge/views/problem.py:814
+#: judge/views/problem.py:821
 msgid "Problem feed"
 msgstr "Bài tập"
 
-#: judge/views/problem.py:1047
+#: judge/views/problem.py:1057
 msgid "Banned from submitting"
 msgstr "Bị cấm nộp bài"
 
-#: judge/views/problem.py:1049
+#: judge/views/problem.py:1059
 msgid ""
 "You have been declared persona non grata for this problem. You are "
 "permanently barred from submitting this problem."
 msgstr "Bạn đã bị cấm nộp bài này."
 
-#: judge/views/problem.py:1072
+#: judge/views/problem.py:1082
 msgid "Too many submissions"
 msgstr "Quá nhiều lần nộp"
 
-#: judge/views/problem.py:1074
+#: judge/views/problem.py:1084
 msgid "You have exceeded the submission limit for this problem."
 msgstr "Bạn đã vượt quá số lần nộp cho bài này."
 
-#: judge/views/problem.py:1153 judge/views/problem.py:1158
+#: judge/views/problem.py:1163 judge/views/problem.py:1168
 #, python-format
 msgid "Submit to %(problem)s"
 msgstr "Nộp bài cho %(problem)s"
 
-#: judge/views/problem.py:1181
+#: judge/views/problem.py:1191
 msgid "Clone Problem"
 msgstr "Nhân bản bài tập"
 
@@ -3052,7 +3078,7 @@ msgstr "Thống kê ngôn ngữ"
 msgid "Submissions"
 msgstr "Bài nộp"
 
-#: judge/views/stats.py:160 templates/blog/list.html:60
+#: judge/views/stats.py:160 templates/blog/list.html:58
 #: templates/comments/list.html:2 templates/stats/site.html:39
 msgid "Comments"
 msgstr "Bình luận"
@@ -3083,7 +3109,7 @@ msgid "Submission of %(problem)s by %(user)s"
 msgstr "Bài nộp của %(user)s cho bài %(problem)s"
 
 #: judge/views/submission.py:298 judge/views/submission.py:299
-#: templates/problem/problem.html:200
+#: templates/problem/problem.html:202
 msgid "All submissions"
 msgstr "Tất cả bài nộp"
 
@@ -3228,7 +3254,7 @@ msgid "Updated on site"
 msgstr "Được cập nhật trên web"
 
 #: judge/views/user.py:449 templates/admin/auth/user/change_form.html:14
-#: templates/admin/auth/user/change_form.html:17 templates/base.html:270
+#: templates/admin/auth/user/change_form.html:17 templates/base.html:280
 #: templates/user/user-tabs.html:10
 msgid "Edit profile"
 msgstr "Chỉnh sửa thông tin"
@@ -3392,6 +3418,30 @@ msgstr "Chủ đề màu sắc"
 msgid "Change color theme"
 msgstr "Đổi chủ đề màu sắc"
 
+#: templates/actionbar/list.html:13
+msgid "Like"
+msgstr "Thích"
+
+#: templates/actionbar/list.html:17
+msgid "Dislike"
+msgstr "Không thích"
+
+#: templates/actionbar/list.html:24
+msgid "Comment"
+msgstr "Bình luận"
+
+#: templates/actionbar/list.html:31
+msgid "Bookmark"
+msgstr "Lưu"
+
+#: templates/actionbar/list.html:37
+msgid "Share"
+msgstr "Chia sẻ"
+
+#: templates/actionbar/list.html:44
+msgid "Report"
+msgstr "Báo cáo"
+
 #: templates/admin/judge/contest/change_form.html:9
 msgid "Are you sure you want to rejudge ALL the submissions?"
 msgstr "Bạn có muốn chấm lại tất cả bài nộp?"
@@ -3440,90 +3490,89 @@ msgstr "Chỉnh sửa thông tin"
 msgid "Rejudge"
 msgstr "Chấm lại"
 
-#: templates/base.html:219 templates/chat/chat.html:579
+#: templates/base.html:225 templates/chat/chat.html:579
 msgid "Chat"
 msgstr "Chat"
 
-#: templates/base.html:229
+#: templates/base.html:235
 msgid "Notification"
 msgstr "Thông báo"
 
-#: templates/base.html:257
-#, python-format
-msgid "Hello, <b>%(username)s</b>."
-msgstr "Xin chào, <b>%(username)s</b>."
+#: templates/base.html:256
+msgid "Dark Mode"
+msgstr ""
 
-#: templates/base.html:262
+#: templates/base.html:272
 msgid "Profile"
 msgstr "Trang cá nhân"
 
-#: templates/base.html:264 templates/chat/chat.html:20
+#: templates/base.html:274 templates/chat/chat.html:20
 #: templates/comments/list.html:89 templates/contest/contest-list-tabs.html:24
 #: templates/contest/list.html:112 templates/contest/ranking-table.html:49
 #: templates/internal/base.html:59
 #: templates/organization/org-left-sidebar.html:12
-#: templates/problem/left-sidebar.html:5 templates/problem/list-base.html:261
+#: templates/problem/left-sidebar.html:5 templates/problem/list-base.html:263
 #: templates/problem/problem-list-tabs.html:6
 #: templates/submission/info-base.html:12 templates/submission/list.html:386
 #: templates/submission/submission-list-tabs.html:15
 msgid "Admin"
 msgstr "Admin"
 
-#: templates/base.html:267
+#: templates/base.html:277
 msgid "Internal"
 msgstr "Nội bộ"
 
-#: templates/base.html:268
+#: templates/base.html:278
 msgid "Stats"
 msgstr "Thống kê"
 
-#: templates/base.html:275
+#: templates/base.html:285
 msgid "Log out"
 msgstr "Đăng xuất"
 
-#: templates/base.html:285
+#: templates/base.html:294
 #: templates/registration/password_reset_complete.html:4
 msgid "Log in"
 msgstr "Đăng nhập"
 
-#: templates/base.html:286 templates/registration/registration_form.html:177
+#: templates/base.html:295 templates/registration/registration_form.html:177
 msgid "or"
 msgstr "hoặc"
 
-#: templates/base.html:287
+#: templates/base.html:296
 msgid "Sign up"
 msgstr "Đăng ký"
 
-#: templates/base.html:300
+#: templates/base.html:309
 msgid "spectating"
 msgstr "đang theo dõi"
 
-#: templates/base.html:312
+#: templates/base.html:321
 msgid "Compete"
 msgstr "Thi"
 
-#: templates/base.html:314
+#: templates/base.html:323
 msgid "General"
 msgstr "Chung"
 
-#: templates/base.html:321
+#: templates/base.html:330
 msgid "This site works best with JavaScript enabled."
 msgstr ""
 
-#: templates/blog/blog.html:27
+#: templates/blog/blog.html:29
 #, python-format
 msgid " posted on %(time)s"
 msgstr "đã đăng vào %(time)s"
 
-#: templates/blog/blog.html:30 templates/comments/list.html:68
+#: templates/blog/blog.html:32 templates/comments/list.html:68
 #: templates/comments/list.html:83 templates/contest/contest-tabs.html:23
 #: templates/contest/list.html:130 templates/contest/tag-title.html:9
 #: templates/flatpages/admin_link.html:3 templates/license.html:10
-#: templates/problem/editorial.html:14 templates/problem/feed.html:68
+#: templates/problem/editorial.html:16 templates/problem/feed.html:76
 msgid "Edit"
 msgstr "Chỉnh sửa"
 
-#: templates/blog/blog.html:33
+#: templates/blog/blog.html:35
 msgid "Edit in"
 msgstr "Chỉnh sửa trong"
 
@@ -3538,33 +3587,33 @@ msgstr ""
 "                                    vào %(time)s\n"
 "                                "
 
-#: templates/blog/list.html:59
+#: templates/blog/list.html:57
 msgid "News"
 msgstr "Tin tức"
 
-#: templates/blog/list.html:61
+#: templates/blog/list.html:59
 msgid "Tickets"
 msgstr "Báo cáo"
 
-#: templates/blog/list.html:62
+#: templates/blog/list.html:60
 msgid "Events"
 msgstr "Sự kiện"
 
-#: templates/blog/list.html:78
+#: templates/blog/list.html:76
 msgid "You have no ticket"
 msgstr "Bạn không có báo cáo"
 
-#: templates/blog/list.html:94 templates/problem/list.html:143
-#: templates/problem/problem.html:423
+#: templates/blog/list.html:92 templates/problem/list.html:143
+#: templates/problem/problem.html:427
 msgid "Clarifications"
 msgstr "Thông báo"
 
-#: templates/blog/list.html:100
+#: templates/blog/list.html:98
 msgid "Add"
 msgstr "Thêm mới"
 
-#: templates/blog/list.html:119 templates/problem/list.html:165
-#: templates/problem/problem.html:434
+#: templates/blog/list.html:118 templates/problem/list.html:165
+#: templates/problem/problem.html:438
 msgid "No clarifications have been made at this time."
 msgstr "Không có thông báo nào."
 
@@ -3652,7 +3701,7 @@ msgstr "bình luận vào {time}"
 msgid "edit %(edits)s"
 msgstr "chỉnh sửa %(edits)s"
 
-#: templates/comments/list.html:51 templates/comments/media-js.html:92
+#: templates/comments/list.html:51 templates/comments/media-js.html:89
 msgid "edited"
 msgstr "đã chỉnh sửa"
 
@@ -3709,12 +3758,12 @@ msgstr "Bình luận bị tắt trong trang này."
 msgid "Replying to comment"
 msgstr "Trả lời bình luận"
 
-#: templates/comments/media-js.html:87
+#: templates/comments/media-js.html:84
 #, python-brace-format
 msgid "edit {edits}"
 msgstr "chỉnh sửa {edits}"
 
-#: templates/comments/media-js.html:90
+#: templates/comments/media-js.html:87
 msgid "original"
 msgstr "original"
 
@@ -3784,7 +3833,7 @@ msgid "Next"
 msgstr "Tiếp"
 
 #: templates/contest/contest-list-tabs.html:21 templates/contest/list.html:110
-#: templates/problem/left-sidebar.html:4 templates/problem/list-base.html:260
+#: templates/problem/left-sidebar.html:4 templates/problem/list-base.html:262
 #: templates/problem/problem-list-tabs.html:5
 msgid "List"
 msgstr "Danh sách"
@@ -3842,49 +3891,49 @@ msgstr "Tham gia kỳ thi"
 msgid "Login to participate"
 msgstr "Đăng nhập để tham gia"
 
-#: templates/contest/contest.html:33
+#: templates/contest/contest.html:35
 #, python-format
 msgid "Spectating, contest ends in %(countdown)s."
 msgstr "Đang theo dõi, kỳ thi còn %(countdown)s."
 
-#: templates/contest/contest.html:35
+#: templates/contest/contest.html:37
 #, python-format
 msgid "Participating virtually, %(countdown)s remaining."
 msgstr "Đang tham gia ảo, còn %(countdown)s."
 
-#: templates/contest/contest.html:37
+#: templates/contest/contest.html:39
 msgid "Participating virtually."
 msgstr "Đang tham gia ảo."
 
-#: templates/contest/contest.html:41
+#: templates/contest/contest.html:43
 #, python-format
 msgid "Starting in %(countdown)s."
 msgstr "Kỳ thi bắt đầu trong %(countdown)s nữa."
 
-#: templates/contest/contest.html:43
+#: templates/contest/contest.html:45
 msgid "Contest is over."
 msgstr "Kỳ thi đã kết thúc."
 
-#: templates/contest/contest.html:47
+#: templates/contest/contest.html:49
 #, python-format
 msgid "Your time is up! Contest ends in %(countdown)s."
 msgstr "Hết giờ! Kỳ thi kết thúc trong %(countdown)s."
 
-#: templates/contest/contest.html:49
+#: templates/contest/contest.html:51
 #, python-format
 msgid "You have %(countdown)s remaining."
 msgstr "Bạn còn %(countdown)s."
 
-#: templates/contest/contest.html:52
+#: templates/contest/contest.html:54
 #, python-format
 msgid "Contest ends in %(countdown)s."
 msgstr "Kỳ thi kết thúc trong %(countdown)s"
 
-#: templates/contest/contest.html:59 templates/contest/contest.html:63
+#: templates/contest/contest.html:61 templates/contest/contest.html:65
 msgid "F j, Y, G:i T"
 msgstr "G:i T, j F, Y"
 
-#: templates/contest/contest.html:59
+#: templates/contest/contest.html:61
 #, python-format
 msgid ""
 "<b>%(time_limit)s</b> window between <b>%(start_time)s</b> and <b>"
@@ -3893,27 +3942,27 @@ msgstr ""
 "Kéo dài <b>%(time_limit)s</b> từ <b>%(start_time)s</b> đến <b>%(end_time)s</"
 "b>"
 
-#: templates/contest/contest.html:63
+#: templates/contest/contest.html:65
 #, python-format
 msgid "<b>%(length)s</b> long starting on <b>%(start_time)s</b>"
 msgstr "Kéo dài <b>%(length)s</b> bắt đầu từ <b>%(start_time)s</b>"
 
-#: templates/contest/contest.html:85
+#: templates/contest/contest.html:87
 msgid "AC Rate"
 msgstr "Tỷ lệ AC"
 
-#: templates/contest/contest.html:86 templates/contest/list.html:242
+#: templates/contest/contest.html:88 templates/contest/list.html:242
 #: templates/contest/list.html:291 templates/contest/list.html:376
 #: templates/problem/list.html:21
 msgid "Users"
 msgstr "Số lượng"
 
-#: templates/contest/contest.html:111 templates/problem/list.html:54
+#: templates/contest/contest.html:113 templates/problem/list.html:54
 #: templates/problem/list.html:126
 msgid "Editorial"
 msgstr "Hướng dẫn"
 
-#: templates/contest/list.html:87 templates/contest/media-js.html:150
+#: templates/contest/list.html:87 templates/contest/media-js.html:148
 msgid "Are you sure you want to join?"
 msgstr "Bạn có chắc tham gia?"
 
@@ -3998,11 +4047,11 @@ msgstr "Không có kỳ thi nào được lên lịch hiện tại."
 msgid "Past Contests"
 msgstr "Kỳ thi trong quá khứ"
 
-#: templates/contest/media-js.html:145
+#: templates/contest/media-js.html:143
 msgid "Are you sure you want to leave?"
 msgstr "Bạn có chắc muốn rời?"
 
-#: templates/contest/media-js.html:146
+#: templates/contest/media-js.html:144
 msgid ""
 "You cannot come back to a virtual participation. You will have to start a "
 "new one."
@@ -4010,7 +4059,7 @@ msgstr ""
 "Bạn không thể quay lại lần tham gia ảo này. Bạn sẽ phải tham gia ảo lại từ "
 "đầu."
 
-#: templates/contest/media-js.html:151
+#: templates/contest/media-js.html:149
 msgid ""
 "Joining a contest starts your timer, after which it becomes unstoppable."
 msgstr "Tham gia kỳ thi sẽ khởi động đồng hồ đếm ngược, và không thể dừng lại."
@@ -4177,7 +4226,7 @@ msgstr ""
 msgid "Thinking"
 msgstr "Bảng xếp hạng"
 
-#: templates/internal/base.html:82 templates/problem/feed.html:114
+#: templates/internal/base.html:82 templates/problem/feed.html:122
 #, fuzzy
 #| msgid "Feed"
 msgid "Feedback"
@@ -4457,7 +4506,7 @@ msgstr "Xem YAML"
 msgid "Autofill testcases"
 msgstr "Tự động điền test"
 
-#: templates/problem/data.html:456 templates/problem/problem.html:308
+#: templates/problem/data.html:456 templates/problem/problem.html:310
 msgid "Problem type"
 msgid_plural "Problem types"
 msgstr[0] "Dạng bài"
@@ -4490,7 +4539,7 @@ msgstr "Pretest?"
 msgid "Add new case"
 msgstr "Thêm test mới"
 
-#: templates/problem/editorial.html:22
+#: templates/problem/editorial.html:24
 msgid ""
 "Remember to use this editorial <b>only</b> when stuck, and <b>not to copy-"
 "paste code from it</b>. Please be respectful to the problem author and "
@@ -4517,55 +4566,55 @@ msgstr "TÌNH NGUYỆN"
 msgid "View your votes"
 msgstr "Xem các đơn đã điền của bạn"
 
-#: templates/problem/feed.html:63
+#: templates/problem/feed.html:71
 msgid "View source"
 msgstr "Xem mã nguồn"
 
-#: templates/problem/feed.html:66
+#: templates/problem/feed.html:74
 msgid "Volunteer form"
 msgstr "Phiếu tình nguyện"
 
-#: templates/problem/feed.html:70
+#: templates/problem/feed.html:78
 msgid "Submit"
 msgstr "Gửi"
 
-#: templates/problem/feed.html:77
+#: templates/problem/feed.html:85
 msgid "Value"
 msgstr "Giá trị"
 
-#: templates/problem/feed.html:84
+#: templates/problem/feed.html:92
 msgid "Knowledge point"
 msgstr "Độ khó kiến thức"
 
-#: templates/problem/feed.html:92
+#: templates/problem/feed.html:100
 msgid "Thinking point"
 msgstr "Độ khó nghĩ"
 
-#: templates/problem/feed.html:100 templates/problem/search-form.html:84
+#: templates/problem/feed.html:108 templates/problem/search-form.html:84
 msgid "Problem types"
 msgstr "Dạng bài"
 
-#: templates/problem/feed.html:117
+#: templates/problem/feed.html:125
 msgid "Any additional note here"
 msgstr "Lưu ý thêm cho admin"
 
-#: templates/problem/left-sidebar.html:3 templates/problem/list-base.html:259
+#: templates/problem/left-sidebar.html:3 templates/problem/list-base.html:261
 msgid "Feed"
 msgstr "Gợi ý"
 
-#: templates/problem/list-base.html:102
+#: templates/problem/list-base.html:104
 msgid "Filter by type..."
 msgstr "Lọc theo dạng..."
 
-#: templates/problem/list-base.html:165 templates/problem/list-base.html:191
+#: templates/problem/list-base.html:167 templates/problem/list-base.html:193
 msgid "Add types..."
 msgstr "Thêm dạng"
 
-#: templates/problem/list-base.html:207
+#: templates/problem/list-base.html:209
 msgid "Fail to vote!"
 msgstr "Hệ thống lỗi!"
 
-#: templates/problem/list-base.html:210
+#: templates/problem/list-base.html:212
 msgid "Successful vote! Thank you!"
 msgstr "Đã gửi thành công! Cảm ơn bạn!"
 
@@ -4667,137 +4716,133 @@ msgstr "Bạn có chắc muốn tính điểm lại %(count)d bài nộp?"
 msgid "Rescore all submissions"
 msgstr "Tính điểm lại các bài nộp"
 
-#: templates/problem/problem.html:165
+#: templates/problem/problem.html:167
 msgid "View as PDF"
 msgstr "Xem PDF"
 
-#: templates/problem/problem.html:174 templates/problem/problem.html:184
-#: templates/problem/problem.html:189
+#: templates/problem/problem.html:176 templates/problem/problem.html:186
+#: templates/problem/problem.html:191
 msgid "Submit solution"
 msgstr "Nộp bài"
 
-#: templates/problem/problem.html:177
+#: templates/problem/problem.html:179
 #, python-format
 msgid "%(counter)s submission left"
 msgid_plural "%(counter)s submissions left"
 msgstr[0] "Còn %(counter)s lần nộp"
 
-#: templates/problem/problem.html:185
+#: templates/problem/problem.html:187
 msgid "0 submissions left"
 msgstr "Còn 0 lần nộp"
 
-#: templates/problem/problem.html:197
+#: templates/problem/problem.html:199
 msgid "My submissions"
 msgstr "Bài nộp của tôi"
 
-#: templates/problem/problem.html:201
+#: templates/problem/problem.html:203
 msgid "Best submissions"
 msgstr "Các bài nộp tốt nhất"
 
-#: templates/problem/problem.html:205
+#: templates/problem/problem.html:207
 msgid "Read editorial"
 msgstr "Xem hướng dẫn"
 
-#: templates/problem/problem.html:210
+#: templates/problem/problem.html:212
 msgid "Manage tickets"
 msgstr "Xử lý báo cáo"
 
-#: templates/problem/problem.html:214
+#: templates/problem/problem.html:216
 msgid "Edit problem"
 msgstr "Chỉnh sửa bài"
 
-#: templates/problem/problem.html:216
+#: templates/problem/problem.html:218
 msgid "Edit test data"
 msgstr "Chỉnh sửa test"
 
-#: templates/problem/problem.html:221
+#: templates/problem/problem.html:223
 msgid "My tickets"
 msgstr "Báo cáo của tôi"
 
-#: templates/problem/problem.html:229
+#: templates/problem/problem.html:231
 msgid "Manage submissions"
 msgstr "Quản lý bài nộp"
 
-#: templates/problem/problem.html:235
+#: templates/problem/problem.html:237
 msgid "Clone problem"
 msgstr "Nhân bản bài"
 
-#: templates/problem/problem.html:242
+#: templates/problem/problem.html:244
 msgid "Points:"
 msgstr "Điểm:"
 
-#: templates/problem/problem.html:245 templates/problem/problem.html:247
+#: templates/problem/problem.html:247 templates/problem/problem.html:249
 msgid "(partial)"
 msgstr "(thành phần)"
 
-#: templates/problem/problem.html:252
+#: templates/problem/problem.html:254
 msgid "Time limit:"
 msgstr "Thời gian:"
 
-#: templates/problem/problem.html:264
+#: templates/problem/problem.html:266
 msgid "Memory limit:"
 msgstr "Bộ nhớ:"
 
-#: templates/problem/problem.html:276 templates/problem/raw.html:67
+#: templates/problem/problem.html:278 templates/problem/raw.html:67
 #: templates/submission/status-testcases.html:157
 msgid "Input:"
 msgstr "Input:"
 
-#: templates/problem/problem.html:278 templates/problem/raw.html:67
+#: templates/problem/problem.html:280 templates/problem/raw.html:67
 msgid "stdin"
 msgstr "bàn phím"
 
-#: templates/problem/problem.html:282 templates/problem/raw.html:70
+#: templates/problem/problem.html:284 templates/problem/raw.html:70
 #: templates/submission/status-testcases.html:161
 msgid "Output:"
 msgstr "Output:"
 
-#: templates/problem/problem.html:283 templates/problem/raw.html:70
+#: templates/problem/problem.html:285 templates/problem/raw.html:70
 msgid "stdout"
 msgstr "màn hình"
 
-#: templates/problem/problem.html:293
+#: templates/problem/problem.html:295
 msgid "Author:"
 msgid_plural "Authors:"
 msgstr[0] "Tác giả:"
 
-#: templates/problem/problem.html:321
+#: templates/problem/problem.html:323
 msgid "Allowed languages"
 msgstr "Ngôn ngữ cho phép"
 
-#: templates/problem/problem.html:329
+#: templates/problem/problem.html:331
 #, python-format
 msgid "No %(lang)s judge online"
 msgstr "Không có máy chấm cho %(lang)s"
 
-#: templates/problem/problem.html:341
+#: templates/problem/problem.html:343
 #: templates/status/judge-status-table.html:2
 msgid "Judge"
 msgid_plural "Judges"
 msgstr[0] "Máy chấm"
 
-#: templates/problem/problem.html:359
+#: templates/problem/problem.html:361
 msgid "none available"
 msgstr "Bài này chưa có máy chấm"
 
-#: templates/problem/problem.html:371
+#: templates/problem/problem.html:373
 #, python-format
 msgid "This problem has %(length)s clarification(s)"
 msgstr "Bài này có %(length)s thông báo"
 
-#: templates/problem/problem.html:400
+#: templates/problem/problem.html:402
 msgid "Request clarification"
 msgstr "Yêu cầu làm rõ đề"
 
-#: templates/problem/problem.html:402
-msgid "Report an issue"
-msgstr "Báo cáo một vấn đề"
-
-#: templates/problem/problem.html:411
+#: templates/problem/problem.html:415
 msgid "View comments"
 msgstr "Xem bình luận"
 
-#: templates/problem/problem.html:413
+#: templates/problem/problem.html:417
 msgid "Be the first to comment"
 msgstr "Bình luận đầu tiên"
 
@@ -5683,6 +5728,12 @@ msgstr "Thông tin"
 msgid "Check all"
 msgstr "Chọn tất cả"
 
+#~ msgid "Hello, <b>%(username)s</b>."
+#~ msgstr "Xin chào, <b>%(username)s</b>."
+
+#~ msgid "Report an issue"
+#~ msgstr "Báo cáo một vấn đề"
+
 #~ msgid "Edit in %(org_slug)s"
 #~ msgstr "Chỉnh sửa trong %(org_slug)s"
 
diff --git a/templates/actionbar/list.html b/templates/actionbar/list.html
new file mode 100644
index 0000000..d0b2ca8
--- /dev/null
+++ b/templates/actionbar/list.html
@@ -0,0 +1,48 @@
+{% set logged_in = request.user.is_authenticated %}
+{% set profile = request.profile if logged_in else None %}
+{% if logged_in %}
+{% if include_hr %}<hr>{% endif %}
+<div class="page-vote">
+    <span class="actionbar-block" style="justify-content: flex-start;">
+        <span id="like-button-{{pagevote.id}}"
+            class="like-button actionbar-button {% if pagevote.vote_score(request.profile) == 1 %}voted{% endif %}" 
+            onclick="javascript:pagevote_upvote({{ pagevote.id }})"
+        >
+            <span class="pagevote-score" id="pagevote-score-{{pagevote.id}}">{{ pagevote.score }}</span>
+            <i class="fa fa-thumbs-o-up" style="font-size: large;"></i>
+            <span class="actionbar-text">{{_("Like")}}</span>
+        </span>
+        <span id="dislike-button-{{pagevote.id}}" class="dislike-button actionbar-button {% if pagevote.vote_score(request.profile) == -1 %}voted{% endif %}" onclick="javascript:pagevote_downvote({{ pagevote.id }})">
+            <i class="fa fa-thumbs-o-down" style="font-size: large;"></i>
+        </span>
+    </span>
+    {% if not hide_actionbar_comment %}
+    <span class="actionbar-block">
+        <span class="actionbar-button">
+            <i class="fa fa-comment-o" style="font-size: large;"></i>
+            <span class="actionbar-text">{{_("Comment")}}</span>
+        </span>
+    </span>
+    {% endif %}
+    <span class="actionbar-block">
+        <span class="actionbar-button">
+            <i class="fa fa-bookmark-o" style="font-size: large;"></i>
+            <span class="actionbar-text">{{_("Bookmark")}}</span>
+        </span>
+    </span>
+    <span class="actionbar-block">
+        <span class="actionbar-button">
+            <i class="fa fa-share" style="font-size: large;"></i>
+            <span class="actionbar-text">{{_("Share")}}</span>
+        </span>
+    </span>
+    {% if actionbar_report_url %}
+        <span class="actionbar-block">
+            <a class="actionbar-button" href="{{actionbar_report_url}}" style="color: black">
+                <i class="fa fa-flag-o" style="font-size: large;"></i>
+                <span class="actionbar-text">{{_("Report")}}</span>
+            </a>
+        </span>
+    {% endif %}
+</div>
+{% endif %}
\ No newline at end of file
diff --git a/templates/actionbar/media-css.html b/templates/actionbar/media-css.html
new file mode 100644
index 0000000..60f75c8
--- /dev/null
+++ b/templates/actionbar/media-css.html
@@ -0,0 +1,47 @@
+<style>
+    .actionbar-button {
+        cursor: pointer;
+        padding: 0.8em;
+        border: 0.2px solid lightgray;
+        border-radius: 5em;
+        font-weight: bold;
+        display: inherit;
+    }
+    .actionbar-block {
+        display: flex;
+        flex: 1;
+        justify-content: center;
+    }
+    .page-vote {
+        display: flex;
+    }
+    .pagevote-score {
+        margin-right: 0.3em;
+    }
+    .like-button {
+        padding-right: 0.5em;
+        border-radius: 5em 0 0 5em;
+    }
+    .actionbar-button:hover {
+        background: lightgray;
+    }
+    .dislike-button {
+        padding-left: 0.5em;
+        border-radius: 0 5em 5em 0;
+        border-left: 0;
+    }
+    .like-button.voted {
+        color: blue;
+    }
+    .dislike-button.voted {
+        color: red;
+    }
+    .actionbar-text {
+        padding-left: 0.4em;
+    }
+    @media (max-width: 799px) {
+        .actionbar-text {
+            display: none;
+        }
+    }
+</style>
diff --git a/templates/actionbar/media-js.html b/templates/actionbar/media-js.html
new file mode 100644
index 0000000..1605a63
--- /dev/null
+++ b/templates/actionbar/media-js.html
@@ -0,0 +1,74 @@
+{% compress js %}
+    <script type="text/javascript">
+        $(document).ready(function () {
+            function ajax_vote(url, id, delta, on_success) {
+                return $.ajax({
+                    url: url,
+                    type: 'POST',
+                    data: {
+                        id: id
+                    },
+                    success: function (data, textStatus, jqXHR) {
+                        var score = $('#pagevote-score-' + id);
+                        score.text(parseInt(score.text()) + delta);
+                        if (typeof on_success !== 'undefined')
+                            on_success();
+                    },
+                    error: function (data, textStatus, jqXHR) {
+                        alert('Could not vote: ' + data.responseText);
+                    }
+                });
+            }
+
+            var get_$votes = function (id) {
+                var $post = $('#page-vote-' + id);
+                return {
+                    upvote: $('#like-button-' + id),
+                    downvote: $('#dislike-button-' + id),
+                };
+            };
+
+            window.pagevote_upvote = function (id) {
+                var $votes = get_$votes(id);
+                console.log($votes.upvote, $votes.downvote);
+                if ($votes.upvote.hasClass('voted')) {
+                    ajax_vote('{{ url('pagevote_downvote') }}', id, -1, function () {
+                        $votes.upvote.removeClass('voted');
+                    });
+                }
+                else {
+                    var delta = 1;
+                    if ($votes.downvote.hasClass('voted')) {
+                        delta = 2;
+                    }
+                    ajax_vote('{{ url('pagevote_upvote') }}', id, delta, function () {
+                        if ($votes.downvote.hasClass('voted'))
+                            $votes.downvote.removeClass('voted');
+                        $votes.upvote.addClass('voted');
+                    });
+                }
+            };
+
+            window.pagevote_downvote = function (id) {
+                var $votes = get_$votes(id);
+                if ($votes.downvote.hasClass('voted')) {
+                    ajax_vote('{{ url('pagevote_upvote') }}', id, 1, function () {
+                        $votes.downvote.removeClass('voted');
+                    });
+                }
+                else {
+                    var delta = -1;
+                    if ($votes.upvote.hasClass('voted')) {
+                        delta = -2;
+                    }
+                    ajax_vote('{{ url('pagevote_downvote') }}', id, delta, function () {
+                        if ($votes.upvote.hasClass('voted'))
+                            $votes.upvote.removeClass('voted');
+                        $votes.downvote.addClass('voted');
+                    });
+                }
+            };
+
+        });
+    </script>
+{% endcompress %}
\ No newline at end of file
diff --git a/templates/blog/blog.html b/templates/blog/blog.html
index 48e6804..213a291 100644
--- a/templates/blog/blog.html
+++ b/templates/blog/blog.html
@@ -2,12 +2,12 @@
 
 {% block js_media %}
     {% include "comments/media-js.html" %}
-    {% include "pagevotes/media-js.html" %}
+    {% include "actionbar/media-js.html" %}
 {% endblock %}
 
 {% block media %}
     {% include "comments/media-css.html" %}
-    {% include "pagevotes/media-css.html" %}
+    {% include "actionbar/media-css.html" %}
 {% endblock %}
 
 {% block title_row %}
@@ -41,14 +41,9 @@
                 {{ post.content|markdown|reference|str|safe}}
             {% endcache %}
         </div>
+        {% include "actionbar/list.html" %}
     </div>
     <hr style="width: 60%; margin:4em auto;">
-    <span class="social">
-        {{ post_to_gplus(request, post, '<i class="fa fa-google-plus-square"></i>') }}
-        {{ post_to_facebook(request, post, '<i class="fa fa-facebook-official"></i>') }}
-        {{ post_to_twitter(request, SITE_NAME + ':', post, '<i class="fa fa-twitter"></i>') }}
-    </span>
-    {% include "pagevotes/list.html" %}
     {% include "comments/list.html" %}
 {% endblock %}
 
diff --git a/templates/blog/content.html b/templates/blog/content.html
index bbb4c7b..6d40994 100644
--- a/templates/blog/content.html
+++ b/templates/blog/content.html
@@ -36,9 +36,15 @@
     <h2 class="title">
         <a href="{{ url('blog_post', post.id, post.slug) }}">{{ post.title }}</a>
     </h2>
-    <div class="summary content-description blog-description">
-        {% cache 86400 'post_summary' post.id %}
-            {{ post.summary|default(post.content, true)|markdown(lazy_load=True)|reference|str|safe }}
-        {% endcache %}
+    <div class="blog-description">
+        <div class="summary content-description">
+            {% cache 86400 'post_summary' post.id %}
+                {{ post.summary|default(post.content, true)|markdown(lazy_load=True)|reference|str|safe }}
+            {% endcache %}
+        </div>
+        {% set pagevote = post.pagevote %}
+        {% set hide_actionbar_comment = True %}
+        {% set include_hr = True %}
+        {% include "actionbar/list.html" %}
     </div>
 </section>
\ No newline at end of file
diff --git a/templates/blog/list.html b/templates/blog/list.html
index 46666f1..4eb7ee9 100644
--- a/templates/blog/list.html
+++ b/templates/blog/list.html
@@ -1,6 +1,7 @@
 {% extends "three-column-content.html" %}
 {% block three_col_media %}
     {% include "blog/media-css.html" %}
+    {% include "actionbar/media-css.html" %}
     <style>
         @media (max-width: 799px) {
             .title {
@@ -32,6 +33,7 @@
 {% endblock %}
 
 {% block three_col_js %}
+    {% include "actionbar/media-js.html" %}
     <script type="text/javascript">
         $(document).ready(function () {
             $('.time-remaining').each(function () {
diff --git a/templates/common-content.html b/templates/common-content.html
index 5d68048..c809252 100644
--- a/templates/common-content.html
+++ b/templates/common-content.html
@@ -67,8 +67,8 @@
                 {% block description_end %}
                     <hr>
                 {% endblock %}
-                {% block post_description_end %}{% endblock %}
             </div>
+            {% block post_description_end %}{% endblock %}
             {% block comments %}{% endblock %}
         </div>
     </div>
diff --git a/templates/contest/contest.html b/templates/contest/contest.html
index ad024f6..e7d8e8a 100644
--- a/templates/contest/contest.html
+++ b/templates/contest/contest.html
@@ -18,10 +18,12 @@
     </script>
     {% include "contest/media-js.html" %}
     {% include "comments/media-js.html" %}
+    {% include "actionbar/media-css.html" %}
 {% endblock %}
 
 {% block content_media %}
     {% include "comments/media-css.html" %}
+    {% include "actionbar/media-css.html" %}
 {% endblock %}
 
 {% block body %}
@@ -116,15 +118,10 @@
                 </tbody>
             </table>
         </div>
+        <hr>
     {% endif %}
-
-    <hr>
-    <span class="social">
-        {{ post_to_gplus(request, contest, '<i class="fa fa-google-plus-square"></i>') }}
-        {{ post_to_facebook(request, contest, '<i class="fa fa-facebook-official"></i>') }}
-        {{ post_to_twitter(request, SITE_NAME + ':', contest, '<i class="fa fa-twitter"></i>') }}
-    </span>
-
+    {% include "actionbar/list.html" %}
+    <br>
     {% include "comments/list.html" %}
 {% endblock %}
 
diff --git a/templates/pagevotes/list.html b/templates/pagevotes/list.html
deleted file mode 100644
index c9b5e91..0000000
--- a/templates/pagevotes/list.html
+++ /dev/null
@@ -1,22 +0,0 @@
-{% set logged_in = request.user.is_authenticated %}
-{% set profile = request.profile if logged_in else None %}
-<div class="page-vote">
-    <div class="page-vote-full" style="margin-right: 5px;">
-    {% if logged_in %}
-        <a href="javascript:pagevote_upvote({{ pagevote.id }})"
-        class="upvote-link fa fa-chevron-up fa-fw{% if pagevote.vote_score(request.profile) == 1 %} voted{% endif %}"></a>
-    {% else %}
-        <a href="javascript:alert('{{ _('Please log in to vote')|escapejs }}')" title="{{ _('Please log in to vote') }}"
-        class="upvote-link fa fa-chevron-up fa-fw"></a>
-    {% endif %}
-    <br>
-    <div class="pagevote-score"> {{ pagevote.score }} </div>
-    {% if logged_in %}
-        <a href="javascript:pagevote_downvote({{ pagevote.id }})"
-        class="downvote-link fa fa-chevron-down fa-fw{% if pagevote.vote_score(request.profile) == -1 %} voted{% endif %}"></a>
-    {% else %}
-        <a href="javascript:alert('{{ _('Please log in to vote')|escapejs }}')" title="{{ _('Please log in to vote') }}"
-        class="downvote-link fa fa-chevron-down fa-fw"></a>
-    {% endif %}
-    </div>  
-</div>
\ No newline at end of file
diff --git a/templates/pagevotes/media-css.html b/templates/pagevotes/media-css.html
deleted file mode 100644
index 19bf6c0..0000000
--- a/templates/pagevotes/media-css.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<style>
-    .page-vote {
-        border: 1px solid #ccc;
-        display: flex;
-        justify-content: center;
-    }
-    .pagevote-score {
-        text-align: center;
-        font-weight: bold;
-    }
-
-    .upvote-link, .downvote-link {
-        color: black;
-    }
-
-    .voted {
-        text-shadow: 0 0 4px black, 0 0 9px blue;
-    }
-</style>
diff --git a/templates/pagevotes/media-js.html b/templates/pagevotes/media-js.html
deleted file mode 100644
index cb36c55..0000000
--- a/templates/pagevotes/media-js.html
+++ /dev/null
@@ -1,54 +0,0 @@
-<script src="{{ static('libs/featherlight/featherlight.min.js') }}" type="text/javascript"></script>
-{% compress js %}
-    <script type="text/javascript">
-        $(document).ready(function () {
-            function ajax_vote(url, id, delta, on_success) {
-                return $.ajax({
-                    url: url,
-                    type: 'POST',
-                    data: {
-                        id: id
-                    },
-                    success: function (data, textStatus, jqXHR) {
-                        var score = $('.page-vote-full' + ' .pagevote-score').first();
-                        score.text(parseInt(score.text()) + delta);
-                        if (typeof on_success !== 'undefined')
-                            on_success();
-                    },
-                    error: function (data, textStatus, jqXHR) {
-                        alert('Could not vote: ' + data.responseText);
-                    }
-                });
-            }
-
-            var get_$votes = function () {
-                var $post = $('.page-vote-full');
-                return {
-                    upvote: $post.find('.upvote-link').first(),
-                    downvote: $post.find('.downvote-link').first()
-                };
-            };
-
-            window.pagevote_upvote = function (id) {
-                ajax_vote('{{ url('pagevote_upvote') }}', id, 1, function () {
-                    var $votes = get_$votes();
-                    if ($votes.downvote.hasClass('voted'))
-                        $votes.downvote.removeClass('voted');
-                    else
-                        $votes.upvote.addClass('voted');
-                });
-            };
-
-            window.pagevote_downvote = function (id) {
-                ajax_vote('{{ url('pagevote_downvote') }}', id, -1, function () {
-                    var $votes = get_$votes();
-                    if ($votes.upvote.hasClass('voted'))
-                        $votes.upvote.removeClass('voted');
-                    else
-                        $votes.downvote.addClass('voted');
-                });
-            };
-
-        });
-    </script>
-{% endcompress %}
\ No newline at end of file
diff --git a/templates/problem/editorial.html b/templates/problem/editorial.html
index 52f4792..d4b760d 100644
--- a/templates/problem/editorial.html
+++ b/templates/problem/editorial.html
@@ -2,10 +2,12 @@
 
 {% block content_js_media %}
     {% include "comments/media-js.html" %}
+    {% include "actionbar/media-js.html" %}
 {% endblock %}
 
 {% block content_media %}
     {% include "comments/media-css.html" %}
+    {% include "actionbar/media-css.html" %}
 {% endblock %}
 
 {% block header %}
@@ -29,6 +31,8 @@
         {{ solution.content|markdown|reference|str|safe }}
     </div>
     <hr>
+    {% include "actionbar/list.html" %}
+    <br>
     {% include "comments/list.html" %}
 {% endblock %}
 
diff --git a/templates/problem/feed.html b/templates/problem/feed.html
index 4429794..9933d55 100644
--- a/templates/problem/feed.html
+++ b/templates/problem/feed.html
@@ -52,14 +52,22 @@
                     {% endfor %}, *{{problem.points | int}}
                 </div>
             {% endif %}
-            <div class='blog-description content-description'>
-                {% cache 86400 'problem_html' problem.id MATH_ENGINE LANGUAGE_CODE %}
-                    {{ problem.description|markdown(lazy_load=True)|reference|str|safe }}
-                {% endcache %}
-                {% if problem.pdf_description %}
-                    <embed src="{{url('problem_pdf_description', problem.code)}}" width="100%" height="500" type="application/pdf" style="margin-top: 0.5em">
-                {% endif %}
+            <div class="blog-description">
+                <div class='content-description'>
+                    {% cache 86400 'problem_html' problem.id MATH_ENGINE LANGUAGE_CODE %}
+                        {{ problem.description|markdown(lazy_load=True)|reference|str|safe }}
+                    {% endcache %}
+                    {% if problem.pdf_description %}
+                        <embed src="{{url('problem_pdf_description', problem.code)}}" width="100%" height="500" type="application/pdf" style="margin-top: 0.5em">
+                    {% endif %}
+                </div>
+                {% set include_hr = True %}
+                {% set hide_actionbar_comment = True %}
+                {% set pagevote = problem.pagevote %}
+                {% include "actionbar/list.html" %}
+
                 {% if feed_type=='volunteer' and request.user.has_perm('judge.suggest_problem_changes') %}
+                    <br>
                     <a href="#" class="view-statement-src">{{ _('View source') }}</a>
                     <pre class="statement-src" style="display: none">{{ problem.description|str }}</pre>
                     <hr>
diff --git a/templates/problem/list-base.html b/templates/problem/list-base.html
index d1b6a53..b4e7beb 100644
--- a/templates/problem/list-base.html
+++ b/templates/problem/list-base.html
@@ -59,9 +59,11 @@
             }
         </style>
     {% endif %}
+    {% include "actionbar/media-css.html" %}
 {% endblock %}
 
 {% block three_col_js %}
+    {% include "actionbar/media-js.html" %}
     <script>
         window.point_start = {{point_start}};
         window.point_end = {{point_end}};
diff --git a/templates/problem/problem.html b/templates/problem/problem.html
index 8a2543d..83f23c9 100644
--- a/templates/problem/problem.html
+++ b/templates/problem/problem.html
@@ -1,6 +1,7 @@
 {% extends "common-content.html" %}
 {% block content_media %}
     {% include "comments/media-css.html" %}
+    {% include "actionbar/media-css.html" %}
     <style>
         .title-state {
             font-size: 2em;
@@ -79,6 +80,7 @@
 
 {% block content_js_media %}
     {% include "comments/media-js.html" %}
+    {% include "actionbar/media-js.html" %}
     {% if request.in_contest_mode %}
         <script type="text/javascript">
             window.register_contest_notification("{{url('contest_clarification_ajax', request.participation.contest.key)}}");
@@ -394,15 +396,17 @@
 
 {% block post_description_end %}
     {% if request.user.is_authenticated and not request.profile.mute %}
-        <a href="{{ url('new_problem_ticket', problem.code) }}" class="clarify">
-            <i class="fa fa-flag" style="margin-right:0.5em"></i>
-            {%- if contest_problem and contest_problem.contest.use_clarifications and request.profile.current_contest.live -%}
+        {%- if contest_problem and contest_problem.contest.use_clarifications and request.profile.current_contest.live -%}
+            <a href="{{ url('new_problem_ticket', problem.code) }}" class="clarify">
+                <i class="fa fa-flag" style="margin-right:0.5em"></i>
                 {{ _('Request clarification') }}
-            {%- else -%}
-                {{ _('Report an issue') }}
-            {%- endif -%}
-        </a>
-        <div style="clear: both"></div>
+            </a>
+            <div style="clear: both"></div>
+        {%- else -%}
+            {% set actionbar_report_url = url('new_problem_ticket', problem.code) %}
+            {% include "actionbar/list.html" %}
+            <br>
+        {%- endif -%}
     {% endif %}
     {% if not (contest_problem and contest_problem.contest.use_clarifications) %}
         <div id="comment-announcement-container">