{"id":"common-chars-space-bounded-by-alphabet","text":"The Counter in `commonChars` is bounded by at most 26 keys (lowercase English letters), making space complexity O(1) regardless of input size.","truth_value":"IN","source":"entries/2026/06/06/find-common-characters-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"common-chars-space-bounded-by-alphabet","truth_value":"IN","reason":"premise"}]}}