added solution for 448

Dominik Schauer · Dominik Schauer · commit 22764e6be9c7 · 2021-07-04T02:05:34.000+02:00
diff --git a/algorithms/448_Find_All_Numbers_Disappeared_in_an_Array.py b/algorithms/448_Find_All_Numbers_Disappeared_in_an_Array.py
@@ -0,0 +1,3 @@
+class Solution:
+    def findDisappearedNumbers(self, nums: List[int]) -> List[int]:
+        return set(range(1,len(nums)+1)) - set(nums)  

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+class Solution:`
	`2`	`+ def findDisappearedNumbers(self, nums: List[int]) -> List[int]:`
	`3`	`+ return set(range(1,len(nums)+1)) - set(nums)`