Status: IN
Multiple solutions use incorrect or template-inherited method names (`valid_selections`, `minOperations`, `add_rooms`) that don't match the LeetCode canonical names, indicating a shared template without per-problem renaming.
Source: entries/2026/06/06/decode-the-message-solution.md, entries/2026/06/06/decode-xored-array-solution.md, entries/2026/06/06/decompress-run-length-encoded-list-solution.md
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