From 1fd5b2794495e746af036051eb98b0ca7a1e388e Mon Sep 17 00:00:00 2001
From: Stefan Harmuth <stefan.harmuth@docomodigital.com>
Date: Mon, 13 Dec 2021 07:03:00 +0100
Subject: [PATCH] day13: no need to join, just to split again afterwards ...

---
 day13.py | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/day13.py b/day13.py
index 4cdb6ed..1e6d014 100644
--- a/day13.py
+++ b/day13.py
@@ -1,13 +1,12 @@
 from tools.aoc import AOCDay
-from typing import Any
-
 from tools.coordinate import Coordinate
 from tools.grid import Grid
+from typing import Any, List
 
 
-def buildGrid(coords: str) -> Grid:
+def buildGrid(coords: List[str]) -> Grid:
     grid = Grid(0)
-    for c in coords.split(";"):
+    for c in coords:
         x, y = map(int, c.split(","))
         grid.set(Coordinate(x, y), 1)
 
@@ -18,13 +17,13 @@ def fold(grid: Grid, direction: str, axis: int):
     if direction == "y":
         for y in range(axis + 1, grid.maxY + 1):
             targetY = axis - (y - axis)
-            for x in range(grid.minX, grid.maxX + 1):
+            for x in grid.rangeX():
                 grid.add(Coordinate(x, targetY), grid.get(Coordinate(x, y)))
         grid.maxY = axis - 1
     elif direction == "x":
         for x in range(axis + 1, grid.maxX + 1):
             targetX = axis - (x - axis)
-            for y in range(grid.minY, grid.maxY + 1):
+            for y in grid.rangeY():
                 grid.add(Coordinate(targetX, y), grid.get(Coordinate(x, y)))
         grid.maxX = axis - 1
 
@@ -34,24 +33,24 @@ class Day(AOCDay):
     test_solutions_p2 = []
 
     def part1(self) -> Any:
-        coords, folds = self.getMultiLineInputAsArray(join_char=";")
+        coords, folds = self.getMultiLineInputAsArray()
         grid = buildGrid(coords)
 
-        fold_1 = folds.split(";")[0]
+        fold_1 = folds[0]
         direction, axis = fold_1.split()[-1].split("=")
         fold(grid, direction, int(axis))
         onCount = 0
-        for x in range(grid.minX, grid.maxX + 1):
-            for y in range(grid.minY, grid.maxY + 1):
+        for x in grid.rangeX():
+            for y in grid.rangeY():
                 onCount += grid.get(Coordinate(x, y)) > 0
 
         return onCount
 
     def part2(self) -> Any:
-        coords, folds = self.getMultiLineInputAsArray(join_char=";")
+        coords, folds = self.getMultiLineInputAsArray()
         grid = buildGrid(coords)
 
-        for thisFold in folds.split(";"):
+        for thisFold in folds:
             direction, axis = thisFold.split()[-1].split("=")
             fold(grid, direction, int(axis))