{"id":"power-of-four-constant-time","text":"`isPowerOfFour` runs in O(1) time and O(1) space with no loops, recursion, or library calls.","truth_value":"IN","source":"entries/2026/06/06/power-of-four-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"power-of-four-constant-time","truth_value":"IN","reason":"premise"}]}}