Add solution to 2025-12-02

Author: fuglede

2025/day02/solutions.py

@@ -0,0 +1,23 @@
+with open("input") as f:
+    data = f.read().strip()
+
+res1 = res2 = 0
+
+for l in data.split(","):
+    start, end = l.split("-")
+    for i in range(int(start), int(end) + 1):
+        s = str(i)
+        mid = len(s) // 2
+        if len(s) % 2 == 0 and s[:mid] == s[mid:]:
+            res1 += i
+        if any(
+            len(s) % l == 0 and s == s[0:l] * (len(s) // l)
+            for l in range(1, len(s) // 2 + 1)
+        ):
+            res2 += i
+
+# Part 1
+print(res1)
+
+# Part 2
+print(res2)