File handling for API.

src/holt59/aoc/2023/day21.py

@@ -50,7 +50,7 @@ class Solver(BaseSolver):
         values.append(len(tiles := reachable(map, tiles, cycle)))
         values.append(len(tiles := reachable(map, tiles, cycle)))
 
-        if self.verbose:
+        if self.files:
             n_rows, n_cols = len(map), len(map[0])
 
             rows = [
@@ -66,8 +66,9 @@ class Solver(BaseSolver):
                     if (i // cycle) % 2 == (j // cycle) % 2:
                         rows[i][j] = f"\033[91m{rows[i][j]}\033[0m"
 
-            for row in rows:
-                self.logger.info("".join(row))
+            self.files.create(
+                "cycle.txt", "\n".join("".join(row) for row in rows).encode(), True
+            )
 
         self.logger.info(f"values to fit: {values}")