2015 day 2 part 1 refactor

2015/day-2/part-1.py

@@ -1,22 +1,14 @@
 import os
 
-script_dir = os.path.dirname(__file__)  # <-- absolute dir the script is in
-rel_path = "./input.txt"
-# rel_path = "./test-input.txt"
-
-abs_file_path = os.path.join(script_dir, rel_path)
-
-input = open(abs_file_path).read()
-
+file_path = os.path.join(os.path.dirname(__file__), "./input.txt")
+input = open(file_path).read().strip()
 
 count = 0
-lines = input.splitlines()
-for line in lines:
-    dimensions = list(map(int, line.split("x")))
-    dimensions.sort()
-    area1 = dimensions[0] * dimensions[1] * 2
-    area2 = dimensions[1] * dimensions[2] * 2
-    area3 = dimensions[0] * dimensions[2] * 2
-    total = area1 + area2 + area3 + int(area1 / 2)
-    count += total
+
+for line in input.splitlines():
+    [x, y, z] = sorted(map(int, line.split("x")))
+    areaX = x * y * 2
+    areaY = y * z * 2
+    areaZ = x * z * 2
+    count += areaX + areaY + areaZ + x * y
 print(count)