Create Permutations.py

Author: Ram-95

Linked_Lists/Permutations.py

@@ -0,0 +1,17 @@
+class Solution:
+    def permute(self, arr: List[int]) -> List[List[int]]:
+        if len(arr) == 0:
+            return []
+        elif len(arr) == 1:
+            return [arr]
+        else:
+            ans = []
+            for i in range(len(arr)):
+                curr_elem = arr[i]
+                # Remaining elements before and after curr_elem as list
+                rem = arr[:i] + arr[i+1:]
+                # Generate permutations of the remaining
+                for el in self.permute(rem):
+                    ans.append([curr_elem] + el)
+            
+            return ans