Create 1780.py

Author: Chiki1601

Diff for: 1601-1800/1780.py

@@ -0,0 +1,12 @@
+class Solution(object):
+    def checkPowersOfThree(self, n):
+        while n > 0: 
+            if n % 3 == 2: 
+                return False
+            n = n // 3
+        return (True if n == 0 else False)
+        """
+        :type n: int
+        :rtype: bool
+        """
+