From 39e9d936f52c7626884d1ca4c5262b117b0dc85c Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Wed, 3 Dec 2025 06:22:35 +0100
Subject: Day 3 2025

---
 2025/03/a.py | 16 ++++++++++++++--
 2025/03/b.py | 18 ++++++++++++++++++
 2 files changed, 32 insertions(+), 2 deletions(-)
 create mode 100644 2025/03/b.py

(limited to '2025/03')

diff --git a/2025/03/a.py b/2025/03/a.py
index 5fdb11b..9f4db62 100644
--- a/2025/03/a.py
+++ b/2025/03/a.py
@@ -1,6 +1,18 @@
 import fileinput
 
+s = 0
 with fileinput.input() as lines:
 	for line in lines:
-		...
-
+		m1 = 0
+		m2 = 0
+		mi = -1
+		for i in range(len(line)-2):
+			if int(line[i]) > m1:
+				m1 = int(line[i])
+				mi = i
+		for i in range(mi+1, len(line)-1):
+			if int(line[i]) > m2:
+				m2 = int(line[i])
+		print(10*m1+m2)
+		s += 10*m1+m2
+print(s)
diff --git a/2025/03/b.py b/2025/03/b.py
new file mode 100644
index 0000000..4c74ae6
--- /dev/null
+++ b/2025/03/b.py
@@ -0,0 +1,18 @@
+import fileinput
+from functools import cache
+
+neginf = -1e13
+
+@cache
+def joltage(line, n):
+	if n == 0:
+		return 0
+	if n > len(line)-1:
+		return neginf
+	j = 0
+	for i in range(len(line)-1):
+		j = max(j, int(line[i])*10**(n-1)+joltage(line[i+1:],n-1))
+	return j
+
+with fileinput.input() as lines:
+	print(sum(joltage(line, 12) for line in lines))
-- 
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