From fad0e790ec93eb4c9f4b993041000338e2d59996 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Fri, 12 Dec 2025 07:13:48 +0100
Subject: Merry Christmas?

---
 2025/12/a-if-it-was-serious.py | 45 ++++++++++++++++++++++++++++++++++++++++++
 2025/12/a.py                   | 21 ++++++++++++++++++--
 2 files changed, 64 insertions(+), 2 deletions(-)
 create mode 100644 2025/12/a-if-it-was-serious.py

(limited to '2025/12')

diff --git a/2025/12/a-if-it-was-serious.py b/2025/12/a-if-it-was-serious.py
new file mode 100644
index 0000000..59ffd72
--- /dev/null
+++ b/2025/12/a-if-it-was-serious.py
@@ -0,0 +1,45 @@
+import fileinput
+
+class Present:
+	def __init__(self, lines5):
+		self.baseshape = [line[:-1] for line in lines5[1:4]]
+		self.area = sum(l.count('#') for l in self.baseshape)
+
+	@staticmethod
+	def pretty(s):
+		return '\n'.join(s)
+
+	def __str__(self):
+		return Present.pretty(self.baseshape)
+
+	@staticmethod
+	def singlerot(s):
+		return [''.join(s[j][2-i] for j in range(3)) for i in range(3)]
+
+	@staticmethod
+	def singleflip(s):
+		return [''.join(s[i][2-j] for j in range(3)) for i in range(3)]
+
+	def shape(self, rot, flip):
+		s = list(self.baseshape)
+		for _ in range(rot):
+			s = Present.singlerot(s)
+		if flip:
+			s = Present.singleflip(s)
+		return s
+
+class Region:
+	def __init__(self, line):
+		wh, n = line[:-1].split(': ')
+		self.w, self.h = tuple(int(i) for i in wh.split('x'))
+		self.p = [int(i) for i in n.split(' ')]
+
+	def __str__(self):
+		return f"({self.w}x{self.h}) {self.p}"
+
+with fileinput.input() as lines:
+	lines = list(lines)
+	presents = [Present(lines[5*i:5*(i+1)]) for i in range(6)]
+	regions = [Region(line) for line in lines[30:]]
+
+# Then you'd have to find some algorithm to solve this, but it is crazy hard
diff --git a/2025/12/a.py b/2025/12/a.py
index 5fdb11b..cac2c38 100644
--- a/2025/12/a.py
+++ b/2025/12/a.py
@@ -1,6 +1,23 @@
+# Just estimate if the shape fit basd on the area. I feel like I am
+# being pranked, this problem sucks.
+
 import fileinput
 
+def present_area(lines5):
+	return sum(l.count('#') for l in lines5)
+
+def region(line):
+	wh, n = line[:-1].split(': ')
+	wh = tuple(int(i) for i in wh.split('x'))
+	c = [int(i) for i in n.split(' ')]
+	return wh, c
+
+def fits(wh, c, areas):
+	return wh[0]*wh[1] >= sum(c[i] * areas[i] for i in range(6))
+
 with fileinput.input() as lines:
-	for line in lines:
-		...
+	lines = list(lines)
+	areas = [present_area(lines[5*i:5*(i+1)]) for i in range(6)]
+	regions = [region(line) for line in lines[30:]]
 
+print(sum(1 if fits(*region, areas) else 0 for region in regions))
-- 
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