Update solution 203 [Python3]

Author: chakyam

solution/203.Remove Linked List Elements/Solution.py

@@ -0,0 +1,20 @@
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, x):
+#         self.val = x
+#         self.next = None
+
+class Solution:
+    def removeElements(self, head, val):
+        """
+        :type head: ListNode
+        :type val: int
+        :rtype: ListNode
+        """
+        if head == None:
+            return None
+        head.next=self.removeElements(head.next,val)
+        if head.val == val:
+            return head.next
+        else:
+            return head