Add 2025 day 5 solutions

2 files changed, 50 insertions, 0 deletions

diff --git a/2025/05/puzzle-1.awk b/2025/05/puzzle-1.awk
new file mode 100755
index 0000000..acfe21b
--- /dev/null
+++ b/2025/05/puzzle-1.awk
@@ -0,0 +1,19 @@
+#!/usr/bin/awk -f
+
+BEGIN { FS = "-" }
+
+NF == 2 {
+	xs[NR, 1] = $1
+	xs[NR, 2] = $2
+}
+
+NF == 1 {
+	for (i = 1; i <= length(xs) / 2; i++) {
+		if ($1 >= xs[i, 1] && $1 <= xs[i, 2]) {
+			cnt++
+			break
+		}
+	}
+}
+
+END { print cnt }
diff --git a/2025/05/puzzle-2.awk b/2025/05/puzzle-2.awk
new file mode 100755
index 0000000..3dfc661
--- /dev/null
+++ b/2025/05/puzzle-2.awk
@@ -0,0 +1,31 @@
+#!/usr/bin/gawk -f
+
+function rangecmp(i1, v1, i2, v2)
+{
+	return v1[1] - v2[1]
+}
+
+function max(x, y)
+{
+	return x > y ? x : y
+}
+
+BEGIN { FS = "-" }
+
+NF == 2 {
+	xs[NR][1] = $1
+	xs[NR][2] = $2
+}
+
+END {
+	asort(xs, xs, "rangecmp")
+	for (i in xs) {
+		if (xs[i][2] <= m)
+			continue
+		cnt += xs[i][2] - max(xs[i][1], m)
+		if (xs[i][1] > m)
+			cnt++
+		m = xs[i][2]
+	}
+	print cnt
+}