{"id":"treenode-is-de-facto-shared-via-inline-copies","text":"`TreeNode` is defined inline in each tree-problem solution file rather than in a shared module, yet hundreds of test files import it from individual solutions — making each copy a critical dependency despite the duplication.","truth_value":"IN","source":"entries/2026/06/06/second-minimum-node-in-a-binary-tree-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":["duplication-over-shared-infrastructure"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"treenode-is-de-facto-shared-via-inline-copies","truth_value":"IN","reason":"premise"}]}}