{"id":"single-loop-computes-row-and-column-max","text":"The `grid[j][i]` index swap in `projectionArea` computes column maximums alongside row maximums in a single nested loop, avoiding a second O(n²) pass for the side projection","truth_value":"IN","source":"entries/2026/06/06/projection-area-of-3d-shapes-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"single-loop-computes-row-and-column-max","truth_value":"IN","reason":"premise"}]}}