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Linked List Implementation
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Linked List Implementation

MediumPython

Problem

Implement a simple linked list data structure.

Create a singly linked list supporting append, prepend, and deletion of the first matching value. The list must preserve insertion order and support conversion to a Python list.

Use implement_linked_list(operations), where each operation is a dictionary such as {"op": "append", "value": 4} or {"op": "delete", "value": 4}. Return the final list of values. Deleting a missing value has no effect.

Constraints

  • 0 <= operations.length <= 10^4
  • Each value is an integer.
  • Each operation is append, prepend, or delete.
  • Deleting a value that is not present has no effect.

Function Signature

def implement_linked_list(operations):
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