tiny work

utils/constants.py

@@ -1,3 +1,26 @@
+class Choices:
+    @classmethod
+    def choices(cls):
+        d = cls.__dict__
+        return [d[item] for item in d.keys() if not item.startswith("__")]
+
+
+class ContestType:
+    PUBLIC_CONTEST = "Public"
+    PASSWORD_PROTECTED_CONTEST = "Password Protected"
+
+
+class ContestStatus:
+    CONTEST_NOT_START = "1"
+    CONTEST_ENDED = "-1"
+    CONTEST_UNDERWAY = "0"
+
+
+class ContestRuleType(Choices):
+    ACM = "ACM"
+    OI = "OI"
+
+
 class CacheKey:
     waiting_queue = "waiting_queue"
     contest_rank_cache = "contest_rank_cache_"