{"id":"solution-resets-state-per-call","text":"`minDiffInBST` sets `self.prev = None` and `self.min_diff = inf` at the top of every call, making `Solution` instances safe to reuse across multiple invocations.","truth_value":"IN","source":"entries/2026/06/06/minimum-distance-between-bst-nodes-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"solution-resets-state-per-call","truth_value":"IN","reason":"premise"}]}}