Add advent code for 2020 days 1-4

day_3/part_1.py

@@ -0,0 +1,30 @@
+with open("input") as f:
+	hill = f.read().split("\n")
+
+# Index deltas
+slope = [
+	1, # the change in vertical height of the toboggan
+	3  # the change in horizontal distance of the toboggan
+]
+
+# The starting position of the toboggan
+position = [0, 0]
+
+tree_count = 0
+
+
+while position[0] < len(hill):
+
+	# Wrap the pattern as needed
+	if position[1] >= len(hill[position[0]]):
+		position[1] -= len(hill[position[0]])
+
+	# Check for trees
+	if hill[position[0]][position[1]] == "#":
+		tree_count += 1
+
+
+	position[0] += slope[0]
+	position[1] += slope[1]
+
+print(f"Trees Hit: {tree_count}")