🎄 Add solution to 2024-12-25

Author: fuglede

2024/day25/solutions.py

@@ -0,0 +1,12 @@
+from itertools import combinations
+
+with open("input") as f:
+    gs = f.read().strip().split("\n\n")
+
+# Part 1
+print(
+    sum(
+        g1[0] != g2[0] and not any({x1, x2} == {"#"} for x1, x2 in zip(g1, g2))
+        for g1, g2 in combinations(gs, 2)
+    )
+)