(self, item)
| 111 | return len(self.parent) |
| 112 | |
| 113 | def make_set(self, item): |
| 114 | if item in self.parent: |
| 115 | return self.find(item) |
| 116 | |
| 117 | self.parent[item] = item |
| 118 | self.rank[item] = 0 |
| 119 | return item |
| 120 | |
| 121 | def find(self, item): |
| 122 | if item not in self.parent: |