Status: IN
Each problem directory is self-contained; solution files never import from other problem directories, and the "Imported By" lists across the repo are test-infrastructure artifacts, not real cross-problem dependencies.
Source: entries/2026/06/06/truncate-sentence-solution.md, entries/2026/06/06/two-furthest-houses-with-different-colors-solution.md, entries/2026/06/06/two-out-of-three-solution.md, entries/2026/06/06/two-sum-iii-data-structure-design-solution.md, entries/2026/06/06/two-sum-iv-input-is-a-bst-solution.md
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