| 1 | class Node: |
| 2 | printed = set() |
| 3 | |
| 4 | def __init__(self, value): |
| 5 | self.parent = None |
| 6 | self.left = None |
| 7 | self.right = None |
| 8 | self.value = value |
| 9 | |
| 10 | def __repr__(self): |
| 11 | try: |
| 12 | if id(self) in self.printed: |
| 13 | return f"-" |
| 14 | self.printed.add(id(self)) |
| 15 | spaces = " " * len(self.printed) |
| 16 | s = f"Node\n{spaces}{spaces}parent: {self.parent}, left: {self.left}, right: {self.right}, v: {self.value}\n" |
| 17 | return s |
| 18 | except RecursionError: |
| 19 | return "-" |
| 20 | |
| 21 | |
| 22 | if __name__ == '__main__': |