Add 2023 day 2 solutions

1 files changed, 31 insertions, 0 deletions

diff --git a/2023/02/puzzle-2.awk b/2023/02/puzzle-2.awk
new file mode 100755
index 0000000..8c19409
--- /dev/null
+++ b/2023/02/puzzle-2.awk
@@ -0,0 +1,31 @@
+#!/usr/bin/awk -f
+
+BEGIN {
+	FS = "[;:] "
+}
+
+{
+	r = 0; g = 0; b = 0
+
+	for (i = 2; i <= NF; i++) {
+		split($i, xs, /, /)
+		for (j in xs) {
+			split(xs[j], ys, / /)
+			n = ys[1]
+			c = ys[2]
+
+			if (c == "red" && n > r)
+				r = n
+			else if (c == "green" && n > g)
+				g = n
+			else if (c == "blue" && n > b)
+				b = n
+		}
+	}
+
+	sum += r * g * b
+}
+
+END {
+	print sum
+}