add top-k-frequent-elements.py

Author: lightmen

python/hash-table/top-k-frequent-elements.py

@@ -0,0 +1,8 @@
+class Solution(object):
+    def topKFrequent(self, nums, k):
+        """
+        :type nums: List[int]
+        :type k: int
+        :rtype: List[int]
+        """
+        return [c for c, t in collections.Counter(nums).most_common(k)]