{"id":"sentinel-prev-initialization","text":"In `checkZeroOnes`, initializing `prev = \"\"` ensures the first character always starts a fresh run without requiring a conditional before the loop","truth_value":"IN","source":"entries/2026/06/06/longer-contiguous-segments-of-ones-than-zeros-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"sentinel-prev-initialization","truth_value":"IN","reason":"premise"}]}}