{"id":"shift-grid-zero-shift-aliases-input","text":"When `k % total == 0`, `shiftGrid` returns the original grid object (not a copy), meaning mutations to the return value alias the input.","truth_value":"IN","source":"entries/2026/06/06/shift-2d-grid-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"shift-grid-zero-shift-aliases-input","truth_value":"IN","reason":"premise"}]}}