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tadd day 3 part 2 - aoc22 - advent of code 2022 solutions |
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git clone git://src.adamsgaard.dk/aoc22 |
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Log |
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Files |
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Refs |
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README |
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--- |
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commit 1507978f5cbd50e4aa85be9532a9b0555d5148e5 |
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parent d542900c3f9dd47037e95ba4525cd280933dccec |
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Author: Anders Damsgaard <[email protected]> |
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Date: Sat, 3 Dec 2022 11:59:31 +0000 |
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add day 3 part 2 |
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Diffstat: |
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A 3/aoc3b | 21 +++++++++++++++++++++ |
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M 3/mkfile | 8 ++++++-- |
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2 files changed, 27 insertions(+), 2 deletions(-) |
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--- |
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diff --git a/3/aoc3b b/3/aoc3b |
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t@@ -0,0 +1,21 @@ |
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+#!/bin/awk -f |
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+function val(c) { |
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+ if (n=index(items, c)) |
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+ sub(c, "_", items) |
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+ return n |
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+} |
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+{ |
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+ items = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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+ s1=$0 |
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+ getline |
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+ s2=$0 |
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+ getline |
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+ s3=$0 |
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+ n1 = length(s1) |
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+ for (i=1; i<=n1; i++) { |
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+ c = substr(s1, i, 1) |
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+ if (index(s2, c) && index(s3, c)) |
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+ sum += val(c) |
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+ } |
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+} |
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+END{ print sum } |
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diff --git a/3/mkfile b/3/mkfile |
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t@@ -1,8 +1,13 @@ |
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run:V: |
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./aoc3 <input |
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+ ./aoc3b <input |
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test:V: |
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# 16 (p), 38 (L), 42 (P), 22 (v), 20 (t), and 19 (s) |
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# correct sum is 157 |
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./aoc3 <testinput |
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- |
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-\ No newline at end of file |
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+ |
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+test2:V: |
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+ # group 1 = r, group 2 = Z |
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+ # sum must be 18+52=70 |
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+ ./aoc3b <testinput |
