public/aoc2020
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

better (and faster) solution

Browse Source
This commit is contained in:
Stefan Harmuth 2020-12-03 11:00:59 +01:00
parent fcd394aaba
commit a3d2b5140f
1 changed files with 5 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
day03.py Normal file → Executable file
View File

@ -8,19 +8,13 @@ def check_for_trees(right_step, down_step, treelines):
x = 0 x = 0
y = 0 y = 0
tree_count = 0 tree_count = 0
for treeline in treelines: maxX = len(treelines[0])
if y % down_step != 0: while y < len(treelines):
y = y + 1 if treelines[y][x] == '#':
continue
while len(treeline) < x + 1:
treeline = treeline + treeline
if treeline[x] == '#':
tree_count = tree_count + 1 tree_count = tree_count + 1
x = x + right_step y = y + down_step
y = y + 1 x = (x + right_step) % maxX
return tree_count return tree_count