diff --git a/contest/views.py b/contest/views.py
index 867b999..28bb721 100644
--- a/contest/views.py
+++ b/contest/views.py
@@ -393,6 +393,8 @@ def _cmp(x, y):
 
 
 def get_the_time_format(seconds):
+    if not seconds:
+        return ""
     result = str(seconds % 60)
     if seconds % 60 < 10:
         result = "0" + result
diff --git a/mq/scripts/info.py b/mq/scripts/info.py
index d36eb49..84040b8 100644
--- a/mq/scripts/info.py
+++ b/mq/scripts/info.py
@@ -66,6 +66,8 @@ class MessageQueue(object):
                         contest_submission.total_time += contest_submission.ac_time
                         contest_submission.total_submission_number += 1
                     # 标记为已经通过
+                    if contest_problem.total_accepted_number == 0:
+                        contest_submission.first_achieved = True
                     contest_submission.ac = True
                     # contest problem ac 计数器加1
                     contest_problem.total_accepted_number += 1
@@ -81,13 +83,16 @@ class MessageQueue(object):
                 if is_ac:
                     total_time = int((submission.create_time - contest.start_time).total_seconds())
                     # 增加题目总的ac数计数器
+                    first_achieved = False
+                    if contest_problem.total_accepted_number == 0:
+                        first_achieved = True
                     contest_problem.total_accepted_number += 1
                     contest_problem.save()
                 else:
                     # 没过罚时20分钟
                     total_time = 1200
                 ContestSubmission.objects.create(user_id=submission.user_id, contest=contest, problem=contest_problem,
-                                                 ac=is_ac, total_time=total_time)
+                                                 ac=is_ac, total_time=total_time, first_achieved=first_achieved)
 
 
 logger.debug("Start message queue")