Why do I get RuntimeError?

  • 0

    I don't know how to improve this code to eliminate this error, Line 14: RuntimeError: maximum recursion depth exceeded in cmp.

    # Definition for singly-linked list.
    # class ListNode(object):
    #     def __init__(self, x):
    #         self.val = x
    #         self.next = None
    class Solution(object):
        def removeElements(self, head, val):
            :type head: ListNode
            :type val: int
            :rtype: ListNode
            if head == None:
              return head
            if head.next != None and head.next.val == val:
              head.next = head.next.next
            self.removeElements(head.next, val)
            return head

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