diff options
Diffstat (limited to '2020')
| -rw-r--r-- | 2020/input/three.txt | 323 | ||||
| -rw-r--r-- | 2020/three.nim | 14 |
2 files changed, 337 insertions, 0 deletions
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0000000..8455783 --- /dev/null +++ b/2020/three.nim @@ -0,0 +1,14 @@ +import os, strutils, std/enumerate + +let input: string = paramStr(1) + +proc descend(x: int, y: int): int = + var longitude: int = 0 + for i, latitude in enumerate(lines(input)): + if i mod y == 0: + if latitude[longitude mod len(latitude)] == '#': + inc(result) + longitude += x + +echo descend(3, 1) +echo descend(1, 1) * descend(3, 1) * descend(5, 1) * descend(7, 1) * descend(1, 2) |