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Author: assassint2017

Permutations II/Permutations II.py

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+# 68ms 97.90%
+class Solution:
+    def permuteUnique(self, nums):
+        """
+        :type nums: List[int]
+        :rtype: List[List[int]]
+        """
+        res_list = []
+        nums.sort()
+        def my_permute(nums, temp_list):
+            if len(nums) is 1:
+                res_list.append(temp_list + nums)
+            else:
+                for index in range(len(nums)):
+                    if index > 0 and nums[index] == nums[index - 1]:
+                        continue
+                    my_permute(nums[:index] + nums[index + 1:], temp_list + [nums[index]])
+                    
+        my_permute(nums, [])
+        return res_list