GoalScope — is_palindrome_linked_list (Qwen2.5-Coder-32B-Instruct)

GoalScope — is_palindrome_linked_list (Qwen2.5-Coder-32B-Instruct) — hover a token to see the patched verbalization

↵ <code>↵ def is_palindrome_linked_list(head):↵ """Check if a linked list is a palindrome."""↵ def reverse_list(node):↵ prev = None↵ while node:↵ next_node = node.next↵ node.next = prev↵ prev = node↵ node = next_node↵ return prev↵ ↵ slow = fast = head↵ while fast and fast.next:↵ slow = slow.next↵ fast = fast.next.next↵ ↵ second_half_start = reverse_list(slow)↵ first_half_start = head↵ ↵ while second_half_start:↵ if first_half_start.val != second_half_start.val:↵ return False↵ first_half_start = first_half_start.next↵ second_half_start = second_half_start.next↵ ↵ return True↵ </code>