{"id":"hashmap-mutable-pair-lists","text":"MyHashMap stores entries as mutable `[key, value]` lists (not tuples), enabling in-place value updates via `pair[1] = value` without remove-and-reinsert.","truth_value":"IN","source":"entries/2026/06/06/design-hashmap-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"hashmap-mutable-pair-lists","truth_value":"IN","reason":"premise"}]}}