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| author | Nat Lasseter <nat.lasseter@york.ac.uk> | 2022-12-02 11:02:28 +0000 |
|---|---|---|
| committer | Nat Lasseter <nat.lasseter@york.ac.uk> | 2022-12-02 11:02:28 +0000 |
| commit | 17d5ad4f0b630f2e8363c85182ff3dfdeee6dc52 (patch) | |
| tree | 870606437421e6ac6efb4a05d717f77d73df07e2 /day02/part1.rb | |
| parent | bf99f840cd83ee8f886c96737ed97fd3c54e4b09 (diff) | |
Day 02
Diffstat (limited to 'day02/part1.rb')
| -rw-r--r-- | day02/part1.rb | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/day02/part1.rb b/day02/part1.rb new file mode 100644 index 0000000..150ee75 --- /dev/null +++ b/day02/part1.rb @@ -0,0 +1,34 @@ +def play(them, us) + us + case them + when 1 + case us + when 1; 3 + when 2; 6 + when 3; 0 + end + when 2 + case us + when 1; 0 + when 2; 3 + when 3; 6 + end + when 3 + case us + when 1; 6 + when 2; 0 + when 3; 3 + end + end +end + +rounds = $stdin.readlines.map(&:strip).map(&:split) + +score = 0 + +rounds.each do |them, us| + ti = {?A => 1, ?B => 2, ?C => 3}[them] + ui = {?X => 1, ?Y => 2, ?Z => 3}[us] + score += play(ti, ui) +end + +puts score |