{"id":"two-pointer-compaction-family","text":"Problems 26 (remove duplicates), 27 (remove element), and 283 (move zeroes) all use the same read/write pointer compaction pattern with different keep-predicates; the structural code is identical, only the filter condition varies.","truth_value":"IN","source":"entries/2026/06/06/remove-element-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":["two-pointer-compaction-extends-streaming-to-in-place-transform"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"two-pointer-compaction-family","truth_value":"IN","reason":"premise"}]}}