2015 day 3 part 1 & 2

2015/day-3/python/part_1.py

@@ -0,0 +1,28 @@
+import os
+import sys
+
+from collections import defaultdict
+
+PATH = os.path.join(sys.path[0], '..', 'input')
+DATA = open(PATH).read()
+
+pos = [0, 0]
+
+def UP():
+    pos[1] += 1
+
+def DOWN():
+    pos[1] -= 1
+def RIGHT():
+    pos[0] += 1
+def LEFT():
+    pos[0] -= 1
+
+DIRECTIONS = {'^' : UP, '<' : LEFT, '>' : RIGHT, 'v' : DOWN}
+
+houses = defaultdict(int)
+for direction in DATA:
+    DIRECTIONS[direction]()
+    houses[f'{pos[0]},{pos[1]}'] += 1
+
+print(len(list(v for v in houses.values() if v >= 1)))