Move to have day be 2 digit always

[advent-of-code-2020.git] / day03 / count_trees.py

diff --git a/day03/count_trees.py b/day03/count_trees.py
new file mode 100644 (file)
index 0000000..ea16e71
--- /dev/null
+++ b/day03/count_trees.py
@@ -0,0 +1,27 @@
+#!/usr/bin/python3
+
+trees_count = 0
+position = 3 # forth square in, we moved 3 right from where we were, 0 + 3 -> 3
+on_first_line = True
+line_number = 0
+
+for line in open("input.txt", "r"):
+    line_number += 1
+    print("line: ", line_number)
+    line = line.rstrip()
+    print(line)
+    if on_first_line:
+        on_first_line = False
+        continue
+    print(line[position], position)
+    if line[position] == "#":
+        trees_count += 1
+        print("hit tree")
+    else:
+        print("missed tree")
+    # now add 3 to the position
+    position += 3
+    if position >= len(line):
+        position = position - len(line)
+
+print("There were", trees_count, "trees")