2017.11

y2017/p11.py

+steps = {
+    'n': (1, 0),
+    's': (-1, 0),
+    'ne': (0.5, 0.5),
+    'se': (-0.5, 0.5),
+    'nw': (0.5, -0.5),
+    'sw': (-0.5, -0.5),
+}
+x, y = 0, 0
+ans2 = 0
+for dx, dy in map(steps.get, data_file.read_text().strip().split(',')):
+    x, y = x + dx, y + dy
+    dist = int(abs(x) + abs(y))
+    ans2 = max(ans2, dist)
+ans1 = dist