Init

1 files changed, 5 insertions, 4 deletions

diff --git a/1_array_hashing/top_k_elements.py b/1_array_hashing/top_k_elements.py
index 2539caa..c237960 100644
--- a/1_array_hashing/top_k_elements.py
+++ b/1_array_hashing/top_k_elements.py
@@ -30,7 +30,7 @@ Constraints:
     1 <= k <= number of distinct elements in nums.
 """
 
-from typing import List
+from typing import Dict, List
 
 
 class Solution:
@@ -49,20 +49,21 @@ class Solution:
         Returns:
             List[int]: elements list
         """
-        count = {}
-        freq = [[] for _ in range(len(nums) + 1)]
+        count: Dict = {}
+        freq: List = [[] for _ in range(len(nums) + 1)]
 
         for n in nums:
             count[n] = 1 + count.get(n, 0)
         for n, c in count.items():
             freq[c].append(n)
 
-        res = []
+        res: List = []
         for i in range(len(freq) - 1, 0, -1):
             for n in freq[i]:
                 res.append(n)
                 if len(res) == k:
                     return res
+        return []
 
 
 case1 = [1, 2, 2, 3, 3, 3]