{"id":"arithmetic-progression-sort-then-scan","text":"`can_construct` sorts the input then verifies constant consecutive difference in one pass — O(n log n) time, O(1) extra space beyond the sort.","truth_value":"IN","source":"entries/2026/06/06/can-make-arithmetic-progression-from-sequence-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"arithmetic-progression-sort-then-scan","truth_value":"IN","reason":"premise"}]}}